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2.4733 Ni62Cr22W14Mo2 Forging Parts | China ISO 9001 Certified Manufacturer

Jiangsu Liangyi Co., Limited is a top ISO 9001:2015 certified manufacturer of 2.4733 Ni62Cr22W14Mo2 open die forging parts and seamless rolled forged rings located in Jiangyin, Jiangsu Province, China. With over 25 years of professional forging experience, we specialize in custom high-temperature nickel alloy forgings, supplying premium 2.4733 forged parts to aerospace, power generation, petrochemical, and industrial heat treatment customers across more than 50 countries worldwide.

2.4733 Ni62Cr22W14Mo2 — Key Facts at a Glance

DIN Standard
2.4733 / NiCr22W14Mo2
UNS Equivalent
N06230 (Haynes 230®)
Max Continuous Service Temp.
1200°C (short-term: 1250°C)
Density
8.97 g/cm³ (0.324 lb/in³)
Tensile Strength Rm (RT)
Min 758 MPa
Tensile Strength Rm (1000°C)
~265 MPa (typical)
Yield Strength Rp0.2 (RT)
Min 310 MPa
Elongation (A5)
Min 40%
Hardness
Max HB 241
Solution Anneal Temp.
1163–1191°C, rapid cool
Certification
ISO 9001:2015, EN10204 3.1/3.2
Lead Time (standard bars/rings)
15–20 working days
2.4733 Ni62Cr22W14Mo2 forged round bars produced by Jiangsu Liangyi
Figure 1: High-quality 2.4733 Ni62Cr22W14Mo2 forged round bars produced by Jiangsu Liangyi

Full Range of 2.4733 Ni62Cr22W14Mo2 Forged Products

We manufacture custom 2.4733 Ni62Cr22W14Mo2 forging products based on international standards and client drawings, with single-piece weight capacity from 30 KG to 30,000 KG. Our complete product range includes:

All our open die forgings are available with full EN10204 3.1/3.2 Mill Test Certificates (MTC) and third-party inspection support by TÜV, SGS, BV and other international authorities.

Available 2.4733 Forging Dimensions by Product Form

The table below summarizes our standard supply capability range for 2.4733 Ni62Cr22W14Mo2 forgings. All dimensions can be customized beyond these ranges — contact us with your specific requirements.

Table 1: Jiangsu Liangyi 2.4733 Forging Supply Capability Range
Product FormKey DimensionsWeight RangeSurface Condition
Round Bars / RodsDia. Ø20–2000 mm   Length up to 6000 mm0.5–15,000 kgBlack (as-forged), turned, or ground
Flat Bars / SlabsT: 20–500 mm   W: 40–1500 mm   L: up to 4000 mm5–20,000 kgBlack or milled flat
Seamless Rolled RingsOD: 300–6000 mm   ID: 200–5800 mm   Height: 50–1000 mm   Wall: 30–500 mm10–25,000 kgAs-rolled or machined bore/face
Forged Discs / BlocksDia. up to 3000 mm   Height up to 1500 mm   Block: up to 3000×1500×800 mm50–30,000 kgBlack or face-milled
Hollow Cylinders / SleevesOD: 100–3000 mm   Wall: ≥30 mm   Length up to 3000 mm20–18,000 kgAs-forged or rough-machined
CNC Machined PartsPer customer drawing   5-axis capability0.5–5,000 kgFinish-machined, Ra 0.8–6.3 μm
2.4733 Ni62Cr22W14Mo2 seamless rolled rings for gas turbine and oil gas applications by Jiangsu Liangyi
Figure 2: Precision-engineered 2.4733 Ni62Cr22W14Mo2 seamless rolled rings for industrial applications

2.4733 Equivalent Grades & International Standard Cross-Reference

2.4733 Ni62Cr22W14Mo2 has different designations in international standards. The table below gives the complete cross-reference for procurement, specification preparation, and import/export documents.

Table 2: 2.4733 Ni62Cr22W14Mo2 International Equivalent Grade Cross-Reference
Standard SystemDesignation / GradeApplicable Standard DocumentsPrimary Market
DIN (German)2.4733 / NiCr22W14Mo2DIN 17742, DIN 17750–17754, DIN 17754Europe (primary standard)
UNS (USA)N06230ASTM B435 (sheet/plate), B572 (rod/bar), B564 (forgings), B622 (tube)North America, Global
Trade Name (USA)Haynes 230®Haynes International specificationNorth America, Aerospace
EN (European)NW6230 / NiCr22W14Mo2EN 10095, EN 10302, EN 10028-7EU, EEA countries
AMS (Aerospace)AMS 5878 (sheet/strip/plate)   AMS 5891 (bar/rod/wire)SAE Aerospace Material SpecificationsAerospace (US/NATO)
ASME (Pressure Vessel)SB-435, SB-572, SB-564ASME BPVC Section II Part BPressure equipment (global)
GB/T (China)GH5188 (approximate)GB/T 14996, GB/T 15067China domestic market
JIS (Japan)NW6230JIS H4551, JIS H4554Japan, Southeast Asia
BS (UK)NA 22BS 3072–3076UK, Commonwealth countries
⚠️ Procurement Note: When placing orders, always specify the applicable standard (such as ASTM B564 for forgings or DIN 17754) together with the grade designation. Different standards may have slightly different compositional limits, heat treatment requirements, or mechanical property test conditions. Our team can advise on the suitable standard for your application and region.

Why Choose 2.4733 Ni62Cr22W14Mo2 Nickel Alloy?

2.4733 (also known as Ni62Cr22W14Mo2) is a carbide-strengthened nickel-chromium-tungsten-molybdenum superalloy, designed for extreme high-temperature use above 980°C. Compared with common nickel alloys such as Inconel® 601, Haynes® 214 and 310S stainless steel, it has unmatched performance advantages:

Table 3: Performance Comparison of 2.4733 vs Other High-Temperature Alloys
Performance Index2.4733 Ni62Cr22W14Mo2Inconel 601310S Stainless Steel
Max Continuous Service Temp.1200°C1150°C1050°C
Oxidation Resistance (1000°C)ExcellentGoodModerate
High-Temp. Creep StrengthOutstandingModeratePoor
Carburization & Nitridation ResistanceExcellentModeratePoor
Structural Stability at High Temp.OutstandingGoodPoor
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Extreme High-Temperature Oxidation Resistance

Excellent oxidation resistance at temperatures above 980°C, further improved by micro-addition of rare earth element lanthanum

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Superior High-Temperature Strength

Tungsten and molybdenum solid solution strengthening delivers excellent creep resistance and stress rupture performance

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Excellent Corrosion Resistance

Excellent resistance to carburization, nitridation, and high-temperature gas corrosion in harsh industrial environments

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Excellent Structural Stability

Stable microstructure and mechanical properties during long-term high-temperature service, no brittle phase precipitation

The “14% Tungsten Advantage”: Why Composition Is the Key to 2.4733’s Dominance Above 1000°C

Most engineers choosing high-temperature alloys focus on nickel and chromium content. What genuinely separates 2.4733 from competing alloys is its 13–15% tungsten (W) addition — a level rarely achieved in commercial nickel superalloys and the primary reason for its exceptional performance above 1000°C.

Why Tungsten Changes Everything at Extreme Temperatures

Tungsten has the highest melting point of all metals (3422°C). When dissolved into the nickel matrix at 13–15%, it creates profound solid-solution strengthening that remains effective at temperatures where other strengthening mechanisms begin to fail. Specifically:

The Lanthanum Factor

The micro-addition of lanthanum (La) at 0.005–0.05% — often overlooked in material data sheets — plays an important role in oxidation resistance. Lanthanum gathers in the Cr₂O₃ oxide layer and greatly slows its growth. In real use, parts made from 2.4733 show oxide layer thickness about 40% thinner than similar Inconel 601 parts after 1000 hours at 1100°C. This is why Jiangsu Liangyi invests in VIM+ESR or VIM+VAR double-melt processes — to ensure tungsten and lanthanum are distributed homogeneously in the final forging.

Chemical Composition of 2.4733 Ni62Cr22W14Mo2 Alloy

Table 4: Chemical Composition of 2.4733 Ni62Cr22W14Mo2 Alloy (Weight %) — per DIN Standard
ElementMin. Content (%)Max. Content (%)Role in Alloy
Nickel (Ni)Balance (~62%)Austenitic matrix, corrosion resistance base
Tungsten (W)13.0%15.0%Primary solid-solution strengthener; creep resistance above 900°C
Chromium (Cr)20.0%24.0%Oxidation & corrosion resistance; forms Cr₂O₃ scale
Carbon (C)0.05%0.15%M₆C carbide formation; grain boundary strengthening
Molybdenum (Mo)1.00%3.00%Secondary solid-solution strengthener; corrosion resistance
Aluminum (Al)0.2%0.5%Deoxidizer; enhanced oxidation resistance via Al₂O₃ sub-scale
Lanthanum (La)0.005%0.050%Rare earth addition; reduces oxide scale growth rate by ~40%
Manganese (Mn)0.30%1.00%Deoxidizer; enhances hot workability
Silicon (Si)0.25%0.75%Oxidation resistance; deoxidizer
Cobalt (Co)5.00%Solid solution strengthener (residual from raw materials)
Iron (Fe)3.00%Controlled residual — higher Fe reduces high-temp. performance
Copper (Cu)0.50%Controlled tramp element
Titanium (Ti)0.10%Controlled — avoids TiC competition with M₆C carbides
Boron (B)0.015%Micro-addition for grain boundary cohesion
Phosphorus (P)0.02%Controlled harmful impurity
Sulfur (S)0.015%Controlled harmful impurity

Mechanical Properties of 2.4733 Ni62Cr22W14Mo2 Forgings

Table 5: Minimum Mechanical Properties at Room Temperature — Solution-Annealed Condition
Mechanical PropertyStandard Minimum RequirementTypical Achieved Value
Ultimate Tensile Strength (Rm)Min 758 MPa790–860 MPa
0.2% Offset Yield Strength (Rp0.2)Min 310 MPa345–400 MPa
Elongation (A5)Min 40%45–55%
Reduction in Area (Z)Min 35%50–65%
Charpy V-notch Impact (KV)Min 68 J100–150 J
HardnessMax HB 241HB 175–220 (typical)
Young’s Modulus (E)211 GPa

High-Temperature Mechanical Properties of 2.4733 Forgings

The following high-temperature tensile data shows typical values from solution-annealed 2.4733 Ni62Cr22W14Mo2 forged bars, tested lengthwise. These values are for engineering reference only; actual design limits should be determined by qualification testing on your specific forging shape and heat number.

Table 6: Typical High-Temperature Tensile Properties of 2.4733 Ni62Cr22W14Mo2 Forgings (Solution-Annealed)
Test TemperatureTensile Strength Rm (MPa)Yield Strength Rp0.2 (MPa)Elongation A5 (%)Notes
23°C (Room Temp.)790–860345–40045–55Standard acceptance condition
538°C (1000°F)730–780295–34542–50Typical creep-service start point
760°C (1400°F)615–665255–29038–48Gas turbine compressor casing range
871°C (1600°F)450–490230–26038–46Important service threshold for many designs
982°C (1800°F)265–300185–21550–60Industrial furnace part range
1093°C (2000°F)130–155110–13065–80Maximum design use — creep governs

Creep rupture reference data: At 871°C / 35 MPa, 2.4733 exhibits a stress rupture life exceeding 1000 hours. At 982°C / 20 MPa, typical rupture life is 500–800 hours depending on grain size and heat treatment. Contact our metallurgical team for application-specific creep allowable data.

Physical & Thermal Properties of 2.4733 Ni62Cr22W14Mo2 Alloy

Table 7: Physical & Thermal Properties of 2.4733 Ni62Cr22W14Mo2 Alloy
PropertyValue at 23°C (RT)Value at 500°CValue at 871°CUnit
Density8.97~8.75g/cm³
Melting Range1301–1371°C (2374–2500°F)°C
Young’s Modulus (E)211193172GPa
Shear Modulus (G)827567GPa
Poisson’s Ratio (ν)0.288
Thermal Conductivity (λ)8.914.118.1W/(m·K)
Specific Heat (Cp)397435473J/(kg·K)
CTE (mean, 23–93°C)12.7μm/(m·K)
CTE (mean, 23–538°C)14.0μm/(m·K)
CTE (mean, 23–871°C)15.6μm/(m·K)
Electrical Resistivity (ρ)1.261.351.41μΩ·m
Thermal Diffusivity (α)2.50×10⁻⁶4.40×10⁻⁶m²/s

Heat Treatment Specifications for 2.4733 Ni62Cr22W14Mo2 Forgings

Correct heat treatment is essential for getting the full performance of 2.4733 alloy. Unlike precipitation-hardened nickel alloys, 2.4733 is a solid-solution strengthened alloy whose properties are mainly controlled by solution annealing temperature and cooling rate.

Table 8: 2.4733 Ni62Cr22W14Mo2 Heat Treatment Specification — Jiangsu Liangyi Production Standard
Heat Treatment StepTemperature RangeHolding TimeCooling MethodPurpose & Effect
Solution Annealing (Primary)1163–1191°CMin 30 min/25 mm sectionRapid air cool or water quench (>75 mm sections)Fully dissolves carbides, restores maximum ductility and corrosion resistance
Post-Forge Anneal (Intermediate)1080–1120°CMin 1 h per 25 mm thicknessRapid air coolGrain refinement; ASTM grain size ≥ 5 for fatigue-critical applications
Stress Relief (Post-Machining/Post-Weld)900–960°C1–4 hoursAir cool or furnace cool to 500°C, then air coolReduces machining or weld-induced residual stresses
Stabilization Aging (Optional — Creep Service)700–760°C16 hoursAir coolImproves long-term creep rupture strength by 10–15%
Sensitization Recovery (Post-Weld Full Anneal)1163–1191°C30 min per 25 mm, min 30 min totalRapid air cool or water quenchDissolves Cr-depleted zone at grain boundaries after welding
⚠ Critical Requirement: 2.4733 alloy must never be cooled slowly through the 650–950°C range after solution annealing. Slow cooling in this temperature range causes grain boundary carbide precipitation and chromium depletion (sensitization), which sharply lowers intergranular corrosion resistance. All solution-annealed parts must be cooled at a rate faster than 55°C/min through this range, verified by thermocouple records for each heat treatment batch.

Our Exclusive Manufacturing Advantages for 2.4733 Alloy Forgings

2.4733 Ni62Cr22W14Mo2 is a high-tungsten nickel superalloy with a narrow hot working window (1050–1200°C), which is prone to cracking and grain coarsening during forging. With over 25 years of experience in nickel alloy forging, we have developed exclusive process solutions:

Our forging workshop is equipped with 2000T–6300T hydraulic forging presses, 1–5T electro-hydraulic forging hammers, 1–5M seamless rolling machines and 10+ heat treatment furnaces with thermocouple-certified temperature uniformity.

Machining & Fabrication Guidelines for 2.4733 Ni62Cr22W14Mo2 Forgings

2.4733 alloy is much harder to machine than stainless steels and standard nickel alloys. Its high tungsten content causes rapid work hardening, and grain boundary carbides speed up tool wear.

Recommended Machining Parameters

ParameterValueNotes
Roughing Speed25–40 m/minCarbide or CBN tooling
Finishing Speed40–60 m/minSharp, uncoated carbide or CBN
Feed Rate (Rough)0.10–0.30 mm/revAvoid light feeds that burnish
Feed Rate (Finish)0.05–0.10 mm/revPer Ra requirement
Depth of Cut (Rough)2–5 mmDeeper cuts preferred
Tool MaterialC-2 CarbideTiAlN or uncoated; CBN for finishing
CoolantHigh-pressure floodWater-soluble oil, 8–12% concentration, chloride-free
Table 9: Recommended Grinding Parameters for 2.4733 Alloy
OperationWheel TypeWheel SpeedWork SpeedInfeed
Surface grindingCBN or Al₂O₃ vitrified, 46–60 grit25–33 m/s10–20 m/min0.01–0.025 mm/pass
Cylindrical grindingCBN or Al₂O₃, 46–80 grit30–35 m/s8–15 m/min0.005–0.015 mm/pass
Internal grindingAl₂O₃ or CBN, 60–80 grit20–30 m/s5–12 m/min0.003–0.010 mm/pass
⚠ Critical Machining Rules: (1) Never use carbon steel tooling or fixturing in contact with 2.4733 surfaces — carbon contamination promotes stress corrosion cracking in service. (2) All machining fluids must be chloride-free — nickel alloys are susceptible to chloride-induced pitting. (3) After rough machining, perform dye-penetrant (PT) inspection before finish machining to detect any forging-related surface discontinuities.

5-Step Specification Checklist: How to Order 2.4733 Forgings Without Errors

  1. Specify the governing standard AND the grade designation together. Example: “2.4733 per DIN 17754” or “UNS N06230 per ASTM B564 Class 1”. If your end customer needs EN10204 3.2 (third-party witnessed inspection), include this in your RFQ — it will influence production scheduling and cost.
  2. State the required heat treatment condition. Options: (a) As-forged [lowest cost, not recommended for service], (b) Solution-annealed [standard — best corrosion resistance and ductility], (c) Solution-annealed + stabilization-aged [best creep performance for 850°C+ service]. Always state: “Supply in solution-annealed condition, 1163–1191°C, rapid air cooled.”
  3. Specify grain size requirement for fatigue-critical applications. For fatigue-important uses (rotating parts, pressure-cycled parts), specify “ASTM grain size ≥ 5 (fine grain)”. For creep-important applications (static furnace parts, sustained high-temperature load), coarser grain (ASTM 3–5) may offer better creep rupture life.
  4. Define NDT requirements explicitly. Minimum standard: 100% UT testing per ASTM A388. For critical applications, also request PT per ASTM E165; MT; and/or RT as required.
  5. Confirm dimensional tolerances and machining allowance. Specify: “Supply with 5 mm machining allowance on all surfaces.” When ordering finished machined parts, provide a finished drawing including tolerances (h6/H7 etc.) and surface roughness (Ra).

Global Industry Standards & Certifications

Global Project Cases & Targeted Applications

Europe

EU Power Generation & Aerospace

Markets: Germany, France, Italy
We have supplied 2.4733 forgings including LPT turbine casings, combustion cans, transition ducts and flame holders to European aerospace firms and thermal power plants, complete with material documentation supporting PED 2014/68/EU qualification.

Middle East

Middle East Oil & Gas

Markets: Saudi Arabia, UAE, Oman
We have supplied customized 2.4733 forgings including valve stems, valve seats, bonnets and high-temperature furnace parts for petrochemical projects, with material properties fully meeting API 6A and NACE MR0175 requirements.

North America

North America Gas Turbine

Markets: USA, Canada
We have supplied 2.4733 forgings including turbine blades, discs, impellers, fasteners and thermocouple protection tubes for land-based gas turbine projects, with complete material documentation complying with ASME B564 requirements.

Asia Pacific

Southeast Asia Power Generation

Markets: Thailand, Indonesia, Malaysia
We have supplied 2.4733 forged reheat valve discs, valve spindles, tube sheets and heat shields for biomass and geothermal power plants.

Oceania

Australia Mining & Heat Treatment

Markets: Australia, New Zealand
We have supplied customized 2.4733 forged heat-treating baskets, grates, trays, nitriding furnace internals and hot work die blocks for Australian mining and heat treatment enterprises.

Global

Global Chemical Process Industry

Markets: Worldwide
We have supplied 2.4733 forged catalyst grid supports for ammonia burners, high-temperature heat exchangers, bellows, sparger tubes and cyclone internals for large-scale chemical projects.

Quality Control & Non-Destructive Testing (NDT)

All NDT procedures are carried out by qualified inspectors with formal certification records. Full material traceability is kept from the original ingot heat number to the final inspection report. Third-party witnessing of NDT is available through internationally recognized inspection bodies.

Technical FAQ for 2.4733 Ni62Cr22W14Mo2 Forgings

What is the maximum continuous service temperature of 2.4733 Ni62Cr22W14Mo2 alloy?
2.4733 alloy can be used continuously at temperatures up to 1200°C and has excellent oxidation resistance above 980°C. For short-term service, it can withstand temperatures as high as 1250°C. This performance is far superior to Inconel 601 (maximum 1150°C continuous) and 310S stainless steel (maximum 1050°C continuous).
What welding process is suitable for 2.4733 Ni62Cr22W14Mo2 alloy?
2.4733 alloy can be welded using TIG (GTAW) and MIG (GMAW) welding processes with matching filler metals (AWS ERNiCrWMo or equivalent Haynes 230W wire). No preheating needed; interpass temperature controlled below 150°C. For parts used in corrosive environments, we strongly recommend full solution annealing at 1163–1191°C followed by rapid cooling after welding.
What is the difference between 2.4733 and Haynes 230 / UNS N06230?
2.4733 (DIN standard) and Haynes 230® (the trade name for UNS N06230) are basically the same alloy — both are Ni-22Cr-14W-2Mo with a small amount of lanthanum added. The different names come from different standard systems. When it comes to mechanical properties, corrosion resistance, and maximum service temperature, they can be used in place of each other.
Can you provide custom CNC machining for 2.4733 forgings?
Yes. We provide one-stop service from raw material melting, forging, heat treatment to final CNC machining. Our equipment includes 5-axis CNC machining centers (max swing Ø2500 mm), floor-type boring and milling machines, heavy-duty lathes, and surface grinders. We can reach a surface finish of Ra 0.8 μm for sealing and bearing parts.
What is the lead time for 2.4733 Ni62Cr22W14Mo2 forgings?
Standard forged bars and seamless rings (solution-annealed, black surface): 15–20 working days. Custom intricate forgings with full CNC machining: 30–45 working days. Expedited production for urgent orders: 10–15 working days (surcharge may apply). We keep a standing inventory of 2.4733 / N06230 VIM+ESR ingots to support fast-response orders.
How does grain size affect 2.4733 forging performance in service?
For fatigue-dominated loading (rotating components, pressure-cycled vessels): fine grain (ASTM ≥ 5) is preferred, improving high-cycle fatigue life by 15–30%. For creep-dominated loading (static furnace internals, sustained high-temperature structural parts): coarser grain (ASTM 3–4) can greatly improve creep rupture life, since fewer grain boundaries mean fewer paths for creep deformation. At 982°C and 20 MPa, material with ASTM grain size 3 can have a rupture life 30–40% longer than material with ASTM grain size 7.
What is the density of 2.4733 and how does the tungsten content affect component weight?
The density of 2.4733 Ni62Cr22W14Mo2 is 8.97 g/cm³ (0.324 lb/in³). This is roughly 10–12% higher than common nickel alloys such as Inconel 601 (8.11 g/cm³) or 310S stainless steel (7.98 g/cm³). The higher density comes from the 13–15% tungsten content. For rotating parts like turbine discs and impellers, this density difference must be included in centrifugal stress calculations.
What test certificates and documentation do you provide?
Standard documentation (included with every order): EN10204 3.1 MTC (full chemical analysis, tensile, hardness, heat treatment records); UT inspection report; Dimensional inspection report; Metallographic report (grain size per ASTM E112 if specified); Material traceability certificate.

Optional on request: EN10204 3.2 MTC (third-party witnessed by TÜV, SGS, BV, or Lloyd’s); high-temperature tensile test results; Charpy impact results; corrosion test reports; NACE MR0175 compliance statement.
Can 2.4733 forgings meet NACE MR0175 / ISO 15156 for sour gas service?
Yes. 2.4733 Ni62Cr22W14Mo2 is a corrosion-resistant alloy (CRA) containing more than 62% nickel. According to NACE MR0175 / ISO 15156-3, Table B.3, nickel alloys with over 50% nickel may be used in sour service with no hardness limits, as long as they are in the solution-annealed condition. Our 2.4733 forgings are delivered solution-annealed, with typical hardness HB 175–220, well below HRC 35.
What is the minimum order quantity for 2.4733 forgings?
There is no strict minimum order quantity. We accept orders from a single prototype piece (minimum forging weight 30 KG per piece) up to large production runs of over 100,000 KG. For prototype and R&D orders, orders can usually be finished in 15–20 working days when raw material is in stock. For total orders over 5,000 KG, we provide favorable pricing and dedicated production capacity.

Global Supply & Customization Capability

Inquire About 2.4733 Ni62Cr22W14Mo2 Forging Parts

Jiangsu Liangyi Co., Limited is your reliable global supplier of high-quality 2.4733 Ni62Cr22W14Mo2 forging parts. Whether you need standard forged bars and rings, or custom intricate turbine parts, we provide the best solution. Send your drawings, material requirements, quantity, and application details for a detailed technical quotation within 24 hours.

Contact Our Forging Experts Today

Get in touch for a competitive quote and technical consultation on your 2.4733 application.

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Email Us
sales@jnmtforgedparts.com
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Phone / WhatsApp
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Official Website
www.jnmtforgedparts.com
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Factory Address
Chengchang Industry Park, Jiangyin City, Jiangsu Province, China
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