Hastelloy C4 (UNS N06455) — Quick Reference Facts
- Material Name:
- Hastelloy C4 | Alloy C-4 | UNS N06455 | Werkstoff 2.4610
- Alloy Type:
- Nickel-Chromium-Molybdenum (Ni-Cr-Mo) Superalloy; ultra-low carbon (C ≤ 0.015%) and silicon (Si ≤ 0.08%)
- Key Differentiator vs C276:
- No post-weld heat treatment needed; great high-temperature thermal stability (649–1038 °C service range)
- Tensile Strength:
- 738 MPa min (107,000 psi min)
- Yield Strength:
- 492 MPa min (71,400 psi min); Elongation ≥ 42%; Hardness ≤ HB 220
- Primary Applications:
- Oil and gas sour service, nuclear reactor coolant systems, chemical processing reactors, heat exchangers, industrial valves and pumps
- Manufacturer:
- Jiangsu Liangyi Co., Limited — Jiangyin City, Jiangsu Province, China
- Certifications:
- ISO 9001:2015 (Manufacturer Certification) · Products made based on API 6A / ASME / EN / DIN / JIS / ASTM specifications · EN 10204 3.1 MTC (standard) · EN 10204 3.2 MTC (via client-nominated third-party inspector)
- Size Range:
- 30 KG to 30 tons | Forged bars ⌀ up to 2 m | Rolled rings ⌀ up to 6 m | Shafts up to 15 m length
- Export Markets:
- More than 50 countries including USA, Canada, Germany, France, Saudi Arabia, UAE, Brazil, Australia, Vietnam
About Our Hastelloy C4 Forging Capabilities | China Jiangsu Jiangyin Origin Factory
Jiangsu Liangyi Co., Limited is a professional ISO 9001:2015 certified manufacturer of Hastelloy C4 (Alloy C-4, UNS N06455) open die forging parts and seamless rolled forged rings, strategically located in Chengchang Industry Park, Jiangyin City, Jiangsu Province, China—one of the world's leading forging industry clusters.
We have more than 25 years of experience in superalloy forging, along with a modern 80,000 ㎡ production base, an annual manufacturing capacity of 120,000 tons, and advanced in-house forging and testing equipment. We supply high-quality custom UNS N06455 forging parts to customers in more than 50 countries around the world, including North America, Europe, the Middle East, Southeast Asia and Oceania. We provide a full range of service from steel melting, forging, heat treatment to CNC machining and strict quality testing. We provide a full EN 10204 3.1 mill test certificate for every batch (EN 10204 3.2 certificates are available through third-party inspectors designated by the customer).
Full Range of Hastelloy C4 (Alloy C-4, UNS N06455) Forged Product Forms
We manufacture custom Hastelloy C4 forging parts in all kinds of shapes and specifications.All of them are made based on international standards (ASTM, AMS, API 6A, DIN, EN, JIS, ASME) and client drawings. Our complete product range covers all core application scenarios of Alloy C-4, including:
Hastelloy C4 Forged Bars & Rods
We supply Hastelloy C4 forged round bars, square bars, flat bars, rectangular bars, and hollow bars, with a maximum forging diameter up to 2 meters and weight ranging from 30KG to 30 tons per piece. Our UNS N06455 forged bars are widely used for valve stems, pump shafts, drill rods, and mechanical parts in high-corrosion environments, with full ultrasonic testing and grain size control per ASTM standards. Explore our full range of forged bars capabilities.
Hastelloy C4 Seamless Rolled Forged Rings
We offer custom UNS N06455 seamless rolled forged rings and open die forged rings , with a maximum diameter of 6 meters and a maximum weight of 30 tons. These Hastelloy C4 forged rings are used for gear rings, valve seats, flanges, pressure vessel shells and reactor parts. We strictly control the forging ratio (≥ 3:1) and microstructure to make sure these parts have consistent mechanical properties, which can meet the working requirements of high temperature and high pressure environments.
Hastelloy C4 Forged Valve & Oilfield Components
We produce a complete range of Hastelloy C4 forged valve parts for different types of valves, including ball valves, check valves, gate valves, globe valves and back pressure valves. These parts include valve balls, valve bonnets, valve bodies, valve stems, valve closures, valve seat rings and valve cores. For both onshore and offshore oil and gas applications, our Alloy C-4 forged products cover drilling pipes, drill rods, drill collars, drilling tools, risers, connectors, joints, seals, flanges, gaskets, casing heads, tubing heads, casing hangers, tubing hangers, tubing spools, casing spools and spacer spools. All of these products are fully made per API 6A specification requirements and NACE MR0175/ISO 15156 material requirements.
Hastelloy C4 Forged Pump, Turbine & Compressor Components
Our UNS N06455 forged parts are widely used in main rotating equipment, including rotors, impellers and casings for nuclear power reactor coolant pumps, rotors for gas and air compressors, impellers for turbo centrifugal compressors, and valve seats, valve cores, valve sleeves and main steam valve covers for gas and steam turbine MSV/GV/CV/CRV valves.We also provide Hastelloy C4 forged downhole tool parts, such as splined drive shafts for mud motors, splined shafts for electrical submersible pump (ESP) motors, and custom forged shafts up to 15 meters long. We also offer high-speed dynamic balancing testing for these products.
Hastelloy C4 Forged Pressure Vessel, Heat Exchanger & Custom Components
We produce custom Hastelloy C4 forged discs, disks, blocks, plates, sleeves, bushes, housings, shells, pipes, tubes, and fully machined custom parts. For pressure vessel and heat exchanger applications, our Alloy C-4 forged products include tube sheets, baffle plates, nozzles, channel flanges, pressure vessel reactor nozzles, transition cones, venturi cone meter bodies, and ultrasonic flow meter bodies, all of these parts are made based on ASME Section VIII pressure vessel standards.
Hastelloy C4 (UNS N06455) Material Properties & Competitive Advantages
Hastelloy C4 (Alloy C-4, UNS N06455) is a low-carbon, high-performance nickel-chromium-molybdenum superalloy. It is used in extreme corrosion and high-temperature environments. It has excellent high-temperature stability, good ductility, and strong corrosion resistance in all kinds of conditions , so that it is the best choice material for main parts in harsh industrial fields such as chemical processing, oil and gas, and nuclear power.
Chemical Composition of Hastelloy Alloy C4 (UNS N06455)
Our Hastelloy C4 forging material is made using a multiple melting process. First, we use vacuum induction for primary melting, then we choose either vacuum consumable electrode remelting (Type 1) or electroslag remelting (Type 2, based on your requirements) according to your needs. This multiple melting process makes sure the material is ultra-pure and has a consistent composition. The strict chemical composition control requirements are as follows:
| Element | Content Range (%) | Core Function |
|---|---|---|
| Nickel (Ni) | Remainder | Base metal, provides excellent corrosion resistance and thermal stability |
| Chromium (Cr) | 14-18 | Enhances oxidation resistance and resistance to oxidizing acid corrosion |
| Molybdenum (Mo) | 14-17 | Improves resistance to reducing acids, pitting, and crevice corrosion |
| Iron (Fe) | 3 max | Controls alloy cost without compromising core performance |
| Carbon (C) | 0.015 max | Ultra-low carbon content prevents grain-boundary carbide precipitation |
| Cobalt (Co) | 2 max | Controls impurity content to ensure thermal stability |
| Titanium (Ti) | 0.7 max | Stabilizes the alloy structure and improves weldability |
| Silicon (Si) | 0.08 max | Ultra-low silicon content reduces intermetallic phase precipitation |
| Manganese (Mn) | 1 max | Controls impurity content to optimize corrosion resistance |
| Phosphorus (P) | 0.04 max | Low harmful element content ensures material purity |
| Sulfur (S) | 0.03 max | Low harmful element content improves weldability and forgeability |
Room Temperature Mechanical Properties (Delivery Condition)
| Mechanical Property | Metric Standard Value | Imperial Standard Value |
|---|---|---|
| Tensile Strength | 738 MPa min | 107000 psi min |
| Yield Strength (0.2% Offset) | 492 MPa min | 71400 psi min |
| Elastic Modulus | 211 GPa | 30600 ksi |
| Elongation at Break (50.8 mm) | 42% min | 42% min |
| Hardness | ≤ HB 220 | ≤ HRC 95 |
Core Competitive Advantages of Hastelloy C4 vs Other Hastelloy Alloys
- Outstanding Weldability and As-Welded Performance: Ultra-low carbon (maximum 0.015%) and silicon content can effectively prevent the formation of grain-boundary precipitates in the weld heat-affected zone, deleting the need for post-weld heat treatment. Compared with Hastelloy C276, it is more suitable for welded mechanical parts in chemical process equipment, which can significantly reduce on-site construction costs.
- Excellent High-Temperature Thermal Stability: It keeps excellent ductility and corrosion resistance even after they work for a long time under the high temperature up to 649–1038°C (1200–1900°F). No brittle phase will form during this process, and its performance in long-term high-temperature service is much better than that of Hastelloy C22.
- Universal Corrosion Resistance: It offers strong resistance to both oxidizing acids and reducing acids.In chloride-containing environments, it is highly resistant to pitting corrosion, crevice corrosion and stress corrosion cracking (SCC).In addition, it provides excellent resistance to sour environments used in oil and gas applications, such as those containing H₂S and CO₂.
- Superior Forgeability & Formability: It has optimized alloy composition with hot workability, so we can produce custom shaped Hastelloy C4 forging parts with consistent microstructure and stable mechanical properties, even for large parts up to 30 tons.
Physical & Thermal Properties of Hastelloy C4 (UNS N06455)
Understanding the physical and thermal properties of Hastelloy C4 is important for equipment designers when choosing materials for high-temperature and high-pressure applications. The following data applies to solution-annealed materials at room temperature, unless stated otherwise.
| Physical Property | Value | Unit |
|---|---|---|
| Density | 8.64 | g/cm³ (0.312 lb/in³) |
| Melting Range | 1340 – 1380 | °C (2444 – 2516 °F) |
| Specific Heat Capacity (at 21°C) | 406 | J/kg·K (0.097 BTU/lb·°F) |
| Thermal Conductivity (at 100°C) | 10.5 | W/m·K (72.8 BTU·in/ft²·h·°F) |
| Thermal Expansion Coefficient (21–100°C) | 11.0 | µm/m·°C (6.1 µin/in·°F) |
| Electrical Resistivity (at 21°C) | 1.26 | µΩ·m (49.6 µΩ·in) |
| Magnetic Permeability (at 200 Oersteds) | 1.001 | — (non-magnetic) |
High-Temperature Mechanical Properties of Hastelloy C4 Forgings
One of the main engineering advantages of UNS N06455 is that it can keep high mechanical strength and ductility even at high temperatures. This makes it suitable for long-term use in chemical reactors, nuclear coolant systems, and turbine parts that work above 400°C. The following high-temperature tensile data is typical of solution-annealed forged material:
| Test Temperature | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| Room Temperature (21°C) | ≥ 738 | ≥ 492 | ≥ 42 |
| 200°C (392°F) | ~690 | ~430 | ~44 |
| 400°C (752°F) | ~650 | ~380 | ~46 |
| 600°C (1112°F) | ~600 | ~330 | ~50 |
| 800°C (1472°F) | ~420 | ~240 | ~60 |
| 1000°C (1832°F) | ~150 | ~100 | ~75 |
These high-temperature mechanical properties confirm that Hastelloy C4 forging parts can be safely used for continuous service at temperatures up to 1038°C (1900°F). Even after long-term aging, there is no obvious embrittlement or brittle phase precipitation, which is a main advantage compared with competing alloys such as Hastelloy C276 and Alloy 625.
Corrosion Performance Data of Hastelloy C4 (UNS N06455)
Hastelloy C4 (Alloy C-4) has excellent corrosion resistance in different harsh corrosive environments. The following corrosion rate data is based on standard immersion tests and published industry references, providing quantitative reference for engineers to select materials.
| Corrosive Medium | Concentration | Temperature | Corrosion Rate (mm/yr) | Performance Rating |
|---|---|---|---|---|
| Hydrochloric Acid (HCl) | 10% | Boiling | < 0.5 | Excellent |
| Sulfuric Acid (H₂SO₄) | 20% | 80°C | < 0.3 | Excellent |
| Sulfuric Acid (H₂SO₄) | 70% | 80°C | < 0.5 | Excellent |
| Phosphoric Acid (H₃PO₄) | 85% | Boiling | < 0.3 | Excellent |
| Hydrofluoric Acid (HF) | 20% | Room Temp | < 0.8 | Very Good |
| Acetic Acid (CH₃COOH) | Glacial | Boiling | < 0.1 | Excellent |
| Sodium Chloride (NaCl) | Saturated | Boiling | < 0.05 | Excellent (No Pitting) |
| Sour Service (H₂S + CO₂ + Cl⁻) | Per NACE MR0175 | Up to 232°C | Negligible | Fully Compliant |
Hastelloy C4 forgings have excellent corrosion resistance in both oxidizing and reducing environments. They also have excellent resistance to pitting, crevice corrosion and stress corrosion cracking (SCC) in chloride-containing environments. These advantages make UNS N06455 the preferred alloy for engineers when designing equipment for chemical processing, offshore oil and gas, and nuclear applications—where material failure is not allowed.
Hastelloy C4 vs C276 vs C22 vs C2000 — Full Alloy Comparison Table
Choosing the right Hastelloy C-series alloy is crucial for both performance and the total cost over the product’s lifespan. The table below offers a detailed side-by-side comparison of the four most commonly specified nickel-chromium-molybdenum alloys, helping engineers and procurement specialists make well-informed decisions.
| Property / Criterion | Hastelloy C4 (N06455) | Hastelloy C276 (N10276) | Hastelloy C22 (N06022) | Hastelloy C2000 (N06200) |
|---|---|---|---|---|
| Carbon Content (max %) | 0.015 (Ultra-low) | 0.010 | 0.010 | 0.010 |
| Silicon Content (max %) | 0.08 (Ultra-low) | 0.08 | 0.08 | 0.08 |
| Chromium % (nominal) | 14–18 | 14.5–16.5 | 20–22.5 | 22–24 |
| Molybdenum % (nominal) | 14–17 | 15–17 | 12.5–14.5 | 15–17 |
| Tungsten (W) | None | 3–4.5% | 2.5–3.5% | None |
| Copper (Cu) | None | None | None | 1.3–1.9% |
| As-Welded Corrosion Resistance | ★★★★★ Excellent — No PWHT needed | ★★★☆☆ Good — PWHT recommended | ★★★★☆ Very Good — PWHT usually not needed | ★★★★☆ Very Good |
| High-Temperature Stability (649–1038°C) | ★★★★★ Excellent — No brittle phase | ★★★☆☆ Moderate — Carbide precipitation risk | ★★★★☆ Very Good | ★★★★☆ Very Good |
| Resistance to Oxidizing Acids | ★★★★☆ Very Good | ★★★☆☆ Good | ★★★★★ Excellent | ★★★★★ Excellent |
| Resistance to Reducing Acids | ★★★★★ Excellent | ★★★★★ Excellent | ★★★★☆ Very Good | ★★★★☆ Very Good |
| Pitting / Crevice Corrosion Resistance | ★★★★★ Excellent | ★★★★★ Excellent | ★★★★★ Excellent | ★★★★★ Excellent |
| Sour Service (NACE MR0175) | ✅ Fully Compliant | ✅ Fully Compliant | ✅ Fully Compliant | ✅ Fully Compliant |
| Best Application Fit | Welded structures, high-temp service, chemical reactors, nuclear | Broad chemical processing, reducing acid environments | Mixed oxidizing/reducing environments, FGD systems | Hydrofluoric acid, sulfuric acid, mixed acid environments |
| Relative Material Cost | $$$ (Moderate-High) | $$$ (Moderate-High) | $$$$ (High) | $$$$ (High) |
Engineering guidance: If your application involves welded assemblies that will be put into use without post-weld heat treatment, Hastelloy C4 (UNS N06455) is a better choice than C276. This is because it has much better corrosion resistance in the as-welded state.C22 or C2000 may be better for applications that need to be resistant to both oxidizing and reducing acids at the same time. C276 is still a good choice for simple reducing acid environments where post-weld heat treatment (PWHT) can be done.
Full-Process Manufacturing & Strict Quality Control for Hastelloy C4 Forgings
As a professional superalloy forging manufacturer, we have set up a full range of quality control process for Hastelloy C4 forging parts from raw material melting to final inspection, which makes sure every part meets international standards and client requirements.
Full-Process Manufacturing Flow
- Premium Raw Material Melting: All Hastelloy C4 raw materials are produced through a double or triple melting process (VIM + VAR / ESR). This process guarantees ultra-low impurity content, consistent chemical composition and excellent forgeability, and realizes full traceability from raw material to finished product.
- Precision Open Die Forging: We use 2000T to 6300T hydraulic forging presses and 1T to 9T electro-hydraulic forging hammers to forge UNS N06455 parts. We strictly control the forging temperature (950-1200°C), forging ratio (≥ 3:1) and deformation rate, making sure the cast matrix is fully broken and the grains are consistently refined.
- Controlled Heat Treatment: All Hastelloy C4 forging parts are given solution heat treatment at 1065-1080°C, followed by rapid quenching. This process makes sure all parts have optimal corrosion resistance and mechanical properties. We have 10 industrial heat treatment furnaces with strict temperature control (±5°C), which are used for large and heavy parts weighing up to 30 tons.
- Precision CNC Machining: Our in-house CNC machining center can provide finished Alloy C-4 parts with tight tolerances up to ±0.02mm, including turning, milling, drilling, grinding, and hardfacing (Stellite 6/21 overlay), meeting the most stringent drawing requirements.
- Comprehensive Quality Inspection: Every batch of Hastelloy C4 forging parts are given strict inspection before delivery, with full inspection reports and mill test certificates provided.
Quality Inspection Standards & Testing Capabilities
Our factory has advanced testing equipment, and all inspections are performed in strict accordance with international standards. Our core testing capabilities include:
- Chemical Composition Analysis: Direct-reading spectrometer, carbon-sulfur analyzer, making sure all of the parts meet UNS N06455 material standards
- Mechanical Property Testing: Tensile testing machine, impact testing machine, hardness tester, high-temperature tensile testing machine, per ASTM A370 and ASTM E10 standards
- Metallographic Testing: Metallographic microscope, grain size testing per ASTM E112, inclusion content testing per ASTM E45, macrostructure testing per ASTM A604
- Non-Destructive Testing (NDT): 100% ultrasonic testing (UT) per ASTM A388, magnetic particle testing (MT), liquid penetrant testing (PT), radiographic testing (RT) available per client requirements
- Other Special Testing: Residual stress testing per ASTM E837, delta ferrite content testing per AMS 2315G, positive material identification (PMI)
For average grain size, our Hastelloy Alloy C-4 forging parts shall be ASTM No. 5 or finer for products up to 3.00 inches (76.2 mm) in nominal diameter, and ASTM No. 4 or finer for products 3.00 inches (76.2 mm) and over. They all fully meet ASTM E112 standards.
Hastelloy C4 Welding Guide — Procedures, Filler Metals & Best Practices
Hastelloy C4 (UNS N06455) has a distinct advantage over other C-series alloys: its excellent weldability even in the as-welded state. Its very low carbon content (≤ 0.015%) and silicon content (≤ 0.08%) make it much less likely that carbide and silicide will form in the weld heat-affected zone (HAZ).This guarantees that the corrosion resistance of Alloy C-4 weldments is the same as or very close to that of the base metal. This means that post-weld heat treatment (PWHT) is not needed in most cases.
Recommended Welding Processes for Hastelloy C4
- GTAW / TIG (Gas Tungsten Arc Welding): It is the preferred process for root passes and thin-section welding.It makes the best welds with the least amount of heat and distortion, and it is best for nuclear-grade and pharmaceutical-grade parts where weld purity is very important.
- GMAW / MIG (Gas Metal Arc Welding): It works well for structural welds and applications that need a higher deposition rate.It works with 100% Argon or Ar/He shielding gas mixtures and makes sure that low heat is used to keep HAZ sensitization to a minimum.
- SMAW (Shielded Metal Arc Welding): It is acceptable for field repairs and construction welds where GTAW/GMAW equipment is not available. Use low-hydrogen electrodes and maintain dry storage conditions.
- SAW (Submerged Arc Welding): It is suitable for heavy-section plate and ring parts. Must use compatible neutral fluxes specifically formulated for nickel alloys to avoid silicon pickup in the weld metal.
Recommended Filler Metals for Hastelloy C4 Welding
| Welding Process | Recommended Filler Metal | AWS Specification | Notes |
|---|---|---|---|
| GTAW / TIG | ERNiCrMo-7 (Alloy C-4 wire) | AWS A5.14 | Primary recommendation — matching chemistry |
| GTAW / TIG (alternative) | ERNiCrMo-10 (C22 wire) | AWS A5.14 | Acceptable for mixed acid environments |
| GMAW / MIG | ERNiCrMo-7 | AWS A5.14 | Use Ar or Ar/He shielding gas |
| SMAW | ENiCrMo-7 | AWS A5.11 | Low-hydrogen electrode, dry storage required |
| SAW | ERNiCrMo-7 + neutral flux | AWS A5.14 | Use nickel-alloy compatible neutral flux only |
Welding Procedure Parameters & Best Practices
- Preheat: Hastelloy C4 base metal does not need preheating at room temperature. However, if the ambient temperature is below 15°C (59°F), it is recommended to warm the base metal to 20–38°C (68–100°F) to avoid moisture condensation on the weld joint.
- Interpass Temperature: Keep interpass temperature below 177°C (350°F) to minimize HAZ sensitization and maintain optimal corrosion resistance in the weld zone.
- Heat Input: Use low-to-medium heat input. Excessive heat input increases the width of the HAZ and may promote minor sensitization. Stringer bead technique is preferred over weaving.
- Shielding Gas: Use 100% Argon or Argon/Helium (Ar/He 75/25) mixtures for GTAW/GMAW. Pure back-purging with Argon is strongly recommended for root passes on pipe and pressure vessel welds.
- Post-Weld Heat Treatment (PWHT): In most applications, post-weld heat treatment (PWHT) is not needed, which is one of the main advantages of Hastelloy C4 compared with C276. If PWHT is needed to meet design codes (such as ASME BPVC), solution annealing at 1065–1080°C followed by rapid water quenching can fully restore the properties of the base metal.
- Cleanliness: All surfaces to be welded must be free of oil, grease, sulfur compounds and other contaminants. Use special stainless steel wire brushes and acetone or alcohol wipes. Do not use carbon steel tools, as they may cause iron contamination.
Industry Applications & Global Project Cases of Hastelloy C4 Forging Parts
Thanks to its outstanding corrosion resistance, weldability and high-temperature stability, Hastelloy C4 forging parts are widely used in the most extreme industrial scenarios around the world. Below are our main application industries and verified global project cases:
Oil & Gas Industry (Onshore & Offshore)
Hastelloy C4 is the preferred material for high-pressure, high-corrosion oil and gas production equipment, especially for sour service wells with high H2S, CO2, and chloride content. Our UNS N06455 forged parts have been widely used in:
- Middle East: Forged tubing heads, casing hangers, valve bodies and double studded adapter flanges are used in 15000psi high-pressure sour gas wells in Saudi Arabia and the UAE. These products meet the material requirements of NACE MR0175/ISO 15156, and have been working stably for more than 8 years in high-pressure sour gas wells without any corrosion failure.
- Southeast Asia: Forged drill rods, mud motor splined drive shafts, and ESP motor splined shafts for offshore oil fields in the South China Sea and Malaysia, with excellent resistance to erosion and corrosion in high-temperature drilling mud environments
- South America: Forged connectors, risers, and valve parts for subsea oil and gas projects in Brazil, they have excellent resistance to seawater corrosion and deep-water high-pressure conditions
Nuclear Power Generation Industry
Hastelloy C4 has excellent high-temperature stability and radiation resistance, so that it is the best choice material for important parts in nuclear power plants. We have supplied precision UNS N06455 forgings for nuclear power reactor coolant systems in multiple Asian nuclear power projects, including:
- China: We provided forged pump casings, impellers, seal chambers, and valve seats for pressurized water reactor nuclear power plants in Jiangsu and Zhejiang, they all strictly meet nuclear industry safety standards
- Southeast Asia: We provided forged valve bodies, nozzles, and pressure vessel parts for nuclear island chemical and volume control systems in Vietnam and Thailand.All of the products keep excellent mechanical properties and corrosion resistance even after long-term working in high-temperature and high-radiation environments
Chemical & Petrochemical Industry
Hastelloy C4 is widely used in corrosive chemical process environments, especially for equipment that needs welding without post-weld heat treatment. Our Alloy C-4 forged parts have been supplied to over 30 large-scale chemical projects in:
- Europe: We provided Forged heat exchanger tube sheets, baffles, and reactor nozzles for sulfuric acid plants in Germany and France, with excellent resistance to reducing acid corrosion, zero quality issues reported over 5 years of continuous operation
- North America: We provided forged valve bodies, pump casings, and piping components for API production lines in the United States and Canada, with ultra-pure material and excellent resistance to organic acid and solvent corrosion
- China: We provided forged reactor parts and valve parts for fluoropolymer production plants in Jiangsu and Shanghai, with excellent resistance to hydrofluoric acid corrosion, outperforming conventional stainless steel and other nickel alloys
General Industrial & Power Equipment
Lead Time, Packaging, Shipping & Ordering Guide for Hastelloy C4 Forgings
Jiangsu Liangyi provides a transparent and professional procurement experience for global buyers of Hastelloy C4 (UNS N06455) forging parts. The following section covers standard lead times, export packaging, minimum order quantities, and the complete ordering workflow to help procurement engineers and project managers plan their schedules accurately.
Standard Lead Time for Hastelloy C4 Forgings
| Product Type | Weight Range | Standard Lead Time | Expedited Lead Time |
|---|---|---|---|
| Forged Bars & Rods | 30 KG – 2 tons | 25–35 days | 15–20 days (subject to availability) |
| Seamless Rolled Rings | 50 KG – 10 tons | 30–45 days | 20–30 days |
| Open Die Forgings (Custom) | 30 KG – 30 tons | 35–55 days | 25–35 days |
| CNC Machined Components | Any | Forging lead time + 10–20 days | Discuss with sales team |
| Third-Party (3.2) Inspection | Any | Add 5–10 days for TÜV / BV / DNV coordination | — |
All lead times are calculated from the date of drawing approval and purchase order confirmation. Our sales team provides a detailed production schedule with every formal quotation.
Minimum Order Quantity (MOQ)
We support both one piece sample orders and large-volume mass production orders. The standard minimum order quantity (MOQ) is 1 piece for custom open die forgings and seamless rolled rings. For forged bars and standard product forms, the minimum order quantity is typically 50 KG. Established clients with approved technical specifications are not subject to any minimum order value restriction.
Export Packaging Standards
All Hastelloy C4 forging parts are packaged based on international export standards to make sure every product can be safely delivered to any destination around the world:
- Anti-Rust Protection: All machined surfaces and bare metal areas are coated with VCI (Vapor Corrosion Inhibitor) anti-rust film or oil coating. The internal surfaces of rings, tubes and hollow parts are sealed with VCI bags or plugged with rubber stoppers.
- Wooden Crates: According to international phytosanitary standards, all forgings are packed in wooden crates that have been heat-treated and fumigated.You can get custom pallet sizes to make your FCL container work better.
- Identification & Labeling: Each piece has the heat number, material grade (UNS N06455 / Alloy C-4), size, and order number stamped on it.Export labels show the gross weight, net weight, size, and how to handle the item.
- Documentation Package: Full shipping documentation including commercial invoice, packing list, certificate of origin (CO), EN 10204 3.1 mill test certificate, and customs HS code classification is provided for every shipment.
Shipping Methods & Incoterms
We ship UNS N06455 forging parts to all ports around the world. For regular orders, we use sea freight (FCL/LCL) departing from Shanghai, Ningbo, or Tianjin. For urgent small orders, we use air freight. For sample delivery, we use DHL, FedEx, or UPS express. We support all Incoterms 2020, including EXW, FOB, CFR, CIF, DAP, and DDP, and offer competitive freight rates through our long-term cooperative forwarding partners.
How to Place an Order — Step-by-Step
- Submit Inquiry: Send your technical requirements to sales@jnmtforgedparts.com including material grade, product form, dimensions, quantity, applicable standards, and inspection requirements.
- Receive Quotation: Our engineering team reviews your drawings within 24–48 hours and provides a detailed formal quotation with unit price, lead time, and payment terms.
- Drawing Approval & PO Confirmation: We issue production drawings for your approval.Lead time starts when we get the signed drawing approval and the purchase order.
- Production & Inspection: Parts are made and inspected per approved specifications. Inspection reports and MTCs are issued upon completion of quality hold points.
- Third-Party Inspection (if required): We coordinate directly with your nominated agency (TÜV, BV, DNV, SGS, Intertek, etc.) for witness testing and certificate endorsement.
- Shipment & Documentation: Parts are packed per export standards and shipped per agreed Incoterms. Full shipping documentation and tracking information are provided within 24 hours of vessel departure.
International Compliance & Certifications
Our Hastelloy C4 forging parts fully meet international industry standards, and our production system has passed multiple authoritative certifications. We make sure customs clearance goes smoothly and all regulations fully meet global delivery.
✅ Manufacturer Certification (held by Jiangsu Liangyi)
📋 Product Standard Conformance
Frequently Asked Questions (FAQ) About Hastelloy C4 Forgings
Inquiry & Contact Information
Jiangsu Liangyi Co., Limited is your trusted China-based professional manufacturer of high-quality Hastelloy C4 (Alloy C-4, UNS N06455) forging parts. We welcome your inquiries for custom forged parts, and we can provide tailored forging solutions, detailed quotations, and material test reports based on your drawings, material requirements, and quantity needs.
📧 Inquiry Email: sales@jnmtforgedparts.com
📞 Phone/WhatsApp: +86-13585067993
🌐 Website: https://www.jnmtforgedparts.com
📍 Address: Chengchang Industry Park, Jiangyin City, Jiangsu Province, China