1.4562 (X1NiCrMoCu32-28-7) Super Austenitic Stainless Steel Forging Parts | China Manufacturer

1.4562 (X1NiCrMoCu32-28-7) Material Overview

1.4562 (also known as X1NiCrMoCu32-28-7, X1NiCrMoCu32287, X1NiCrMoCu32.28.7, and registered under UNS N08031) is a premium super austenitic stainless steel that is designed to resist corrosion better than high-end nickel-based alloys while costing less. This alloy has high levels of chromium (26-28%) and nickel (30-32%), with strategic additions of molybdenum (6-7%) and copper (1.0-1.4%), which provide outstanding anti-corrosion performance in the harshest acidic, chloride-containing, and high-sulfur environments.

With an ultra-low carbon content (≤0.015%), 1.4562 has excellent mechanical properties and intergranular corrosion resistance in the welded condition, eliminating post-weld heat treatment requirements for most applications. Produced according to EN 10088-3, ASTM B625, and other international standards, this material is the ideal choice for custom forged components in extreme industrial environments.

Jiangsu Liangyi is a professional ISO 9001:2015 certified manufacturer. We have rich experiences of producing open die forging parts and seamless rolled steel forged rings in China.  We provide complete production processes from steel melting, forging, heat treatment to precision CNC machining, These products are processed according to international standards and customer drawings. Our 1.4562 forgings are exported to more than 50 countries including Europe, North America, the Middle East, Southeast Asia, and Australia.

Why Choose 1.4562 (X1NiCrMoCu32-28-7) Forgings? Core Performance Advantages

Compared to conventional stainless steels and other super austenitic grades, 1.4562 (X1NiCrMoCu32-28-7) forgings have best performance benefits for critical industrial applications:

1.4562 vs 904L vs 254SMO vs Hastelloy C-276 Performance Comparison

To help you select the right material for your project, we have prepared a detailed performance comparison table:

Full Range of 1.4562 (X1NiCrMoCu32-28-7) Forging Products We Supply

We provide a complete portfolio of custom 1.4562 forged steel products, with single-piece weight ranging from 30KGS to 30,000KGS, which can meet the different needs of global industrial applications. Below are our main product range:

1.4562 Forged Bars & Shafts

We supply 1.4562 forged steel round bars, square bars, flat bars, rectangular bars, and custom step shafts, gear shafts, crankshafts, and valve stems. Below is our forging capabilities:

• Max forging diameter: up to 2000mm
• Max length: up to 15000mm
• Fuollow EN, ASTM, DIN, and custom material standards
• 100% ultrasonic testing (UT) before delivery

X1NiCrMoCu32-28-7 Seamless Rolled Forged Rings

Our custom X1NiCrMoCu32-28-7 seamless rolled rings and contoured forged rings are ideal for critical rotating and pressure-bearing applications. Below is the capabilities of our production:

• Max outer diameter: up to 6000mm
• Max single-piece weight: up to 30 tons
• Custom shapes: gear rings, flange blanks, valve body rings, bearing rings, and contoured rolled rings
• Complete EN10204 3.1 / 3.2 mill test certification can be provided

1.4562 Hollow Forgings, Sleeves & Pipes

We produce custom 1.4562 forged steel hubs, housings, shells, sleeves, bushes, heavy-wall hollow bars, seamless pipes, tubes, and casings for high-pressure applications. Below is our capabilities of 1.4562 hollow forgings, sleeves and pipes:

• Max outer diameter: up to 3000mm
• Custom wall thickness and length according to drawings
• Suitable for pressure vessels, heat exchangers, pump barrels, and high-pressure pipeline components
• Complete non-destructive testing to make sure no defects

X1NiCrMoCu32-28-7 Forged Discs, Plates & Blocks

Our 1.4562 forged discs, disks, plates, blocks, and tube sheets are manufactured with heat treatment and quality control. We provide custom sizes up to 30 tons in weight, commonly used in pressure vessels, heat exchangers, baffles, and industrial equipment flanges.

Custom Engineered 1.4562 Forgings

We also provide bespoke 1.4562 forged components according to customer drawings, including valve bodies, bonnets, balls, seats, pump casings, impellers, shafts, wellhead equipment parts, flanges, and other custom engineered forgings for specific industrial applications.

1.4562 (X1NiCrMoCu32-28-7) Chemical Composition & Mechanical Properties

All our 1.4562 forgings are manufactured according to international material standards, with complete traceability from raw material to finished product. We provide complete mill test certificates (MTC) for every order.

Chemical Composition (EN 10088-3 Standard)

Mechanical Properties (Delivery Condition, Solution Annealed)

1.4562 (X1NiCrMoCu32-28-7) Physical & Thermal Properties for Engineering Design

Equipment designers and process engineers routinely need physical and thermal data beyond standard mechanical test results. The values below are characteristic of solution-annealed 1.4562 plate and forging stock and are consistent with published EN 10088-3 and supplier material data sheets. Use these figures as a starting point; confirm with certified mill test certificates for each heat.

Design note: 1.4562 (µr ≤ 1.005) is not magnetic, so it is a good choice for flow measurement bodies and instrumentation housings where magnetic interference needs to be avoided. When calculating the LMTD of a heat exchanger, you need to take into account that it has a lower thermal conductivity than carbon steel.

1.4562 Corrosion Resistance: Quantified Data for Process Engineering

Unlike generic "excellent corrosion resistance" claims, the figures below give process engineers concrete numbers for material selection screening and life prediction. All data reflect solution-annealed wrought or forged material tested in laboratory immersion conditions; actual service performance depends on concentration, temperature, aeration, flow velocity, and the presence of contaminants.

Critical Pitting Temperature (CPT) and Critical Crevice Corrosion Temperature (CCT)

Pitting and crevice corrosion resistance are quantified by CPT and CCT — the lowest temperature at which a stable pit or crevice attack initiates under standardised test conditions. 1.4562 significantly outperforms 904L and 254SMO in these tests:

Corrosion Rate in Sulfuric Acid (H₂SO₄)

1.4562 performs exceptionally in dilute to medium-concentration sulfuric acid, where the combination of high chromium, molybdenum, and copper provides both passive film stability and active corrosion suppression:

Corrosion Rate in Phosphoric Acid (H₃PO₄)

Phosphoric acid service — particularly in fertiliser and semiconductor-grade acid production — which is the defining application for 1.4562. The copper addition is specifically engineered to suppress active dissolution in H₃PO₄, where 316L and 904L have unacceptable attack rates:

Stress Corrosion Cracking (SCC) Resistance

Austenitic alloys with nickel content below ~30% are susceptible to chloride-induced SCC at temperatures above 60°C. At 30–32% Ni, 1.4562 sits above the critical threshold and shows no SCC in boiling 42% MgCl₂ (a severe laboratory screening test) — unlike 316L, which fails within hours. This makes 1.4562 forgings reliable in hot chloride service conditions such as evaporator bodies, heat exchanger shells, and desalination pre-treatment components.

1.4562 Welding Guidelines & International Standards Cross-Reference

Welding Guidelines for 1.4562 (X1NiCrMoCu32-28-7) Forgings

1.4562 is a complete austenitic, low-carbon alloy with excellent weldability. No preheat is required. The principal welding consideration is avoiding sensitisation (chromium carbide precipitation at grain boundaries), which the ≤0.015% carbon limit effectively prevents. The following parameters apply to TIG (GTAW), MIG (GMAW), and SAW processes as commonly used in pressure vessel and piping fabrication:

Dissimilar metal welding: When joining 1.4562 to carbon steel or low-alloy steel, use an Inconel 625 (ERNiCrMo-3) or Inconel 82/182 butter layer. A stainless steel transition piece is preferable wherever design allows, to avoid the coefficient of thermal expansion mismatch between austenitic and ferritic materials in cyclic temperature service.

International Standards Cross-Reference for 1.4562 / UNS N08031

The same alloy may have different designations depending on the customer's engineering standard, country, and product form.This reference table can help you make sure that procurement documents, mill test certificates, and design specifications are all in line with different regulatory frameworks:

Procurement tip: When issuing an RFQ, specify both the EN designation (1.4562 / X1NiCrMoCu32-28-7) and UNS N08031 simultaneously. This ensures global mills and forging shops quote on the same chemistry, preventing substitution with lower-grade alloys that share a similar but non-equivalent designation.

Advanced Manufacturing Expertise for 1.4562 (X1NiCrMoCu32-28-7) Forgings

As a professional high-alloy forging manufacturer, we have mastered the exclusive forging process for 1.4562 super austenitic stainless steel, which can make sure the material has great performance and microstructure after forging. Below are the processes:

Melting Process

As a professional high-alloy forging manufacturer, we have mastered the exclusive forging process for 1.4562 super austenitic stainless steel, which can eliminate inclusions and segregation that can affect corrosion resistance and mechanical properties. Our available melting methods include:

1. EAF (Electric Arc Furnace) + LF (Ladle Refining) + VD (Vacuum Degassing)
2. EAF + ESR (Electro Slag Remelting) for ultra-high purity requirements
3. EAF + PESR (Protective Atmosphere Electro Slag Remelting)
4. VIM (Vacuum Induction Melting) + PESR for critical nuclear and aerospace applications

Forging Process

Our forging workshop is equipped with 2000T/4000T/6300T hydraulic forging presses, 1T-9T electro-hydraulic forging hammers, and 1M-5M seamless ring rolling machines. We control the forging temperature between 1150℃ and 950℃ for 1.4562 high-alloy material, with a minimum 3:1 forging ratio which can make sure full grain refinement and uniform microstructure, maximizing the material's corrosion resistance and mechanical properties.  Find more details for our advanced forging equipment .

Controlled Heat Treatment

All 1.4562 forgings go through solution annealing at 1150°C to 1180°C, and then they are quickly cooled in water to make sure they are as tough and resistant to corrosion as possible. We have 10 professional heat treatment furnaces that can handle large forgings up to 30 tons and can keep the temperature within ±5°C.

Precision CNC Machining

We provide precision CNC machining services in-house, with a machining tolerance of up to IT6 level. We also provide finished forgings which are ready for assembly. We can do turning, milling, boring, drilling, and grinding which are processed according to the needs of custom drawings.

Global Compliance & Certifications

Our 1.4562 (X1NiCrMoCu32-28-7) forging parts follow international standards and industry regulations, which can meet the access requirements of global markets. Below are the certifications and compliance:

We can also get inspections from SGS, BV, TÜV, Lloyd's Register, and other well-known international organizations. We can provide complete inspection reports according to the customer needs.

Industry Applications & GEO-Targeted Proven Project Cases

1.4562 (X1NiCrMoCu32-28-7) forged parts are commonly used in tough industrial applications. These parts need to be able to resist corrosion and work well in harsh conditions.  Our proven project cases cover these main industries and markets around the world:

Oil & Gas Industry (Middle East, North America, North Sea)

Our 1.4562 forged components are the best choice for sour service oil and gas applications, which have excellent resistance to wet hydrogen sulfide, chloride, and acid corrosion. We provide custom forgings including drilling tools, risers, connectors, flexible joints, seals, flanges, gaskets, Christmas trees, wellhead spool bodies, and double studded adapter flanges, they are all according to API 6A and NACE MR0175 standards.

Proven Project Case: We provided over 200 sets of custom 1.4562 forged Christmas trees, wellhead bodies, and valve components for a large-scale sour oilfield development project in Saudi Arabia. The forgings have been in stable operation for more than 8 years, with no corrosion failure, and they can meet the project's  requirements for high-sulfur environments.

Chemical & Petrochemical Industry (Europe, North America, Southeast Asia)

We produce custom X1NiCrMoCu32-28-7 forged parts for chemical and petrochemical plants, including pressure vessels, reactor nozzles, heat exchanger tube sheets, baffles, pump casings, impellers, shafts, and valve bodies. These forgings can be used in harsh corrosive environments, including phosphoric acid, sulfuric acid, hydrofluoric acid, and chloride-containing solutions, according to PED and ASME standards.

Proven Project Case: We  provided custom 1.4562 forged pressure vessel shells, reactor nozzles, and heat exchanger tube sheets for a large-scale phosphoric acid plant in Germany. The components have excellent performance in high-concentration phosphoric acid environments for over 6 years, which have passed all annual safety inspections with no defects.

Power Generation Industry (China, Southeast Asia, Europe)

Our 1.4562 forged parts are commonly used in thermal power, nuclear power, and renewable energy projects. We provide forgings for boilers, heat exchangers, pressure vessels, reactors, and heaters, including tube sheets, baffle plates, nozzles, and channel flanges for flue gas desulfurization (FGD) systems, they are the main components for resisting sulfuric acid corrosion in power plant exhaust treatment. We also provide 1.4562 forgings for nuclear power reactor coolant pumps, including rotors, impellers, casings, and seal chambers.

Proven Project Case: We sent more than 500 tons of 1.4562 forged tube sheets, baffles, and nozzles to eight coal-fired power plants in Indonesia. They help the plants meet the local emission standards with long-term stable performance.

Marine & Offshore Engineering (Global)

Our 1.4562 forged parts are great for marine and offshore applications, because they don't corrode in seawater or harsh marine environments. We provide FGD unit components for ocean-going vessels, offshore platform flow meter bodies, venturi cone meter bodies, swept branches, saddles, and flexible joint seals, which can meet the certification requirements of major international classification societies.

Valve Manufacturing Industry (North America, Europe, Asia)

We provide customized 1.4562 forged valve components for high-end valve manufacturers around the world, including valve balls, valve bonnets, valve bodies, valve stems, valve closures, valve seat rings, valve cores, and valve discs. These components are suitable for ball valves, check valves, gate valves, cryogenic high-performance butterfly valves, and other industrial valves, they have stable performance in high-pressure, strong corrosion, and cryogenic working conditions. Check out our full product range for more forging valves.

Strict Quality Control & Inspection Standards

We have a complete process quality control system, that from raw material incoming inspection to finished product delivery which can make sure the quality and reliability of every 1.4562 (X1NiCrMoCu32-28-7) forged part. Our in-house inspection laboratory has advanced testing equipment, including nondestructive testing (NDT) equipment, chemical composition testing equipment, mechanical property testing equipment, and metallographic testing equipment.

Our main inspection standards follow international specifications, including:

• ASTM E 8 / E 8M: Tension Testing of Metallic Materials
• ASTM E 10: Brinell Hardness of Metallic Materials
• ASTM E 139: Creep, Creep-Rupture, and Stress-Rupture Tests
• ASTM E 292: Time-for-Rupture Notch Tension Tests
• ASTM E 354: Chemical Analysis of High-Temperature Iron, Nickel, and Cobalt Alloys
• ASTM A388 / A388M: Ultrasonic Inspection of Steel Forgings
• ASTM E165: Liquid Penetrant Testing (PT)
• ASTM E709: Magnetic Particle Testing (MT)

All our 1.4562 forgings undergo 100% ultrasonic testing (UT) and surface testing (PT/MT) before delivery, according to EN10204 3.1 / 3.2 mill test certificates provided for every order.

Custom Forging Solutions & Global Supply Service

We are a professional 1.4562 forging manufacturer and we can provide one-stop custom forging solutions for global clients, from sample development to mass production. Below is our production advantages:

• Flexible Customization: We produce forgings according to your drawings and technical requirements, we have no minimum order quantity (MOQ) limitation for custom projects
• Fast Delivery: Standard products can be finished within 15-20 days, and custom complex forgings can be finished within 30-45 days (average delivery time varies by region: Europe 35-50 days, North America 40-55 days, Middle East 30-45 days, Southeast Asia 20-30 days, Australia 35-50 days)
• Global Logistics Support: We provide door-to-door delivery services to Europe, North America, the Middle East, Southeast Asia, Australia, and other global regions, with EXW, FOB, CIF, DDP trade terms available
• Professional Technical Support: Our engineering team provides free material selection suggestion and forging process improvement solutions to help you reduce costs and improve product performance. Look in material library for more high-alloy choices.
• After-Sales Service: We provide complete after-sales support for all our products, we have a professional team can solve any technical or quality issues within 24 hours

Frequently Asked Questions about 1.4562 (X1NiCrMoCu32-28-7) Forgings

What is 1.4562 (X1NiCrMoCu32-28-7) stainless steel?

1.4562, also known as X1NiCrMoCu32-28-7 and registered under UNS N08031, it is a high-quality super austenitic stainless steel with 26–28% chromium, 30–32% nickel, 6–7% molybdenum, and 1.0–1.4% copper. It has exceptional corrosion resistance with a PREN of ~48, which makes it suitable for the harshest acidic, chloride-containing, and high-sulfur industrial environments. Its ultra-low carbon content (≤0.015%) can make sure excellent weldability without post-weld heat treatment.

How does 1.4562 (X1NiCrMoCu32-28-7) compare to 904L, 254SMO, and Hastelloy C-276?

1.4562 has a PREN of ~48 that significantly higher than 904L (~36) and 254SMO (~43). Unlike 904L, it qualifies for sour application under NACE MR0175. It costs approximately 3–4× that of 316L (similar to 254SMO), which makes it a cost-effective alternative to Hastelloy C-276 (8–10×) in phosphoric acid, sulfuric acid, and mixed-acid chemical environments.

What sizes of 1.4562 forgings can Jiangsu Liangyi supply?

We provide: forged round bars up to 2000 mm diameter and 15,000 mm length; seamless rolled rings up to 6000 mm OD and 30 tons per piece; hollow forgings/sleeves up to 3000 mm OD; and forged discs, plates, and tube sheets up to 30 tons. we can process the parts with single-piece weight ranges from 30 kg to 30,000 kg.

What are the guaranteed mechanical properties of 1.4562 forgings?

In solution annealed condition per EN 10088-3: Yield Strength ≥ 220 MPa; Tensile Strength 500–700 MPa; Elongation ≥ 40%; Hardness ≤ 230 HB; Longitudinal Impact Energy (KV, 20℃) ≥ 100 J; Transverse Impact Energy (KV, -196℃) ≥ 60 J.

What certifications do your 1.4562 forgings Have?

Jiangsu Liangyi has received the approval from ISO 9001:2015, PED 2014/68/EU, API 6A, ASME BPVC, NACE MR0175/ISO 15156, and NORSOK Standard. All forgings are provided with EN 10204 3.1/3.2 mill test certificates. A third-party inspection from SGS, BV, TÜV, and Lloyd's Register can also be provided as per your needs.

What is the lead time for custom 1.4562 forgings?

The standard lead time is 15–20 days. Custom complex forgings require 30–45 days. Total door-to-door transit times: Europe 35–50 days; North America 40–55 days; Middle East 30–45 days; Southeast Asia 20–30 days; Australia 35–50 days. Trade terms: EXW, FOB, CIF, DDP.

What quality inspections are performed on every 1.4562 forging?

Every forging undergoes 100% ultrasonic testing (UT per ASTM A388) and 100% surface testing (PT per ASTM E165 or MT per ASTM E709), plus mechanical property tests (ASTM E8/E10), chemical analysis (ASTM E354), and complete dimensional inspection before delivery.

What forging process is used for 1.4562 (X1NiCrMoCu32-28-7)?

We use open die forging on 2000T–6300T hydraulic presses and seamless ring rolling on 1M–5M ring rolling machines. Forging temperature is controlled between 950℃ and 1150℃ with a minimum 3:1 forging ratio, followed by solution annealing at 1150℃–1180℃ with rapid water quenching (±5℃ temperature precision, capable of handling forgings up to 30 tons).

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