1.4410 material equivalent ASTM
Mar 17, 2026
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What is 1.4410 material?
1.4410 stainless steel, commonly known as Super Duplex 2507 or UNS S32750, is a super duplex stainless steel with a balanced ferritic-austenitic microstructure that offers exceptionally high strength and outstanding corrosion resistance. With its high chromium, molybdenum, and nitrogen content, it provides superior resistance to pitting, crevice corrosion, and stress corrosion cracking in aggressive chloride environments, making it the material of choice for the most demanding offshore, chemical processing, and desalination applications.
What is 1.4410 material equivalent?
| Standard | Designation / Grade |
|---|---|
| EN / DIN | 1.4410 / X2CrNiMoN25-7-4 |
| UNS (USA) | S32750 |
| ASTM | F53 / 2507 |
| Common Name | Super Duplex 2507 |
1.4410 stainless steel Chemical Composition (Mass %)
| Element | Maximum (%) | Range (%) |
|---|---|---|
| Carbon (C) | 0.03 | - |
| Chromium (Cr) | - | 24.0–26.0 |
| Nickel (Ni) | - | 6.0–8.0 |
| Molybdenum (Mo) | - | 3.0–5.0 |
| Nitrogen (N) | - | 0.24–0.32 |
| Manganese (Mn) | 1.20 | - |
| Copper (Cu) | 0.50 | - |
1.4410 stainless steel Mechanical Properties Solution Annealed Condition
| Property | Value (Metric) |
|---|---|
| Tensile Strength (Rm) | 800–1000 MPa |
| 0.2% Yield Strength (Rp0.2) | ≥ 550 MPa |
| Elongation (A5) | ≥ 25% |
| Hardness (HRC) | ≤ 32 HRC |
| PREN (Pitting Resistance Equivalent Number) | ≥ 40 |
What is the operating temperature range for 1.4410 steel?
The recommended operating temperature range for 1.4410 is typically -50°C to 250°C. Below -50°C, the material undergoes a ductile-to-brittle transition. Above 250°C (particularly around 475°C), the material is susceptible to "475°C embrittlement" and the precipitation of the brittle Sigma (σ) phase, leading to a sharp decline in toughness.
Is 1.4410 steel difficult to weld?
The material has good weldability, but heat input and interpass temperature must be strictly controlled to maintain the balanced 50/50 austenite-ferrite microstructure. Excessive heat input can lead to the formation of brittle intermetallic compounds (Sigma phase), thereby reducing corrosion resistance and toughness.
Can 1.4410 replace 316L?
Yes; 1.4410 has nearly twice the strength of 316L and significantly superior corrosion resistance. However, it is more expensive and more difficult to process. 1.4410 is often selected as a replacement when 316L fails due to stress corrosion cracking (SCC) or pitting corrosion.
In which industries is 1.4410 most commonly used?
Offshore oil & gas (subsea pipelines, wellhead components, flowlines)
Seawater desalination (brine side)
Chemical processing (chlorinated media)
Marine engineering (propeller shafts, piston rods, pump impellers)
Carbon capture and storage
Pulp & paper (bleach plants)
Power generation (condensers, desuperheaters)
What is the main difference between 1.4410 and 1.4462 ?
1.4410 has higher Chromium (25% vs 22%) and Molybdenum (4% vs 3%) content than 1.4462. This gives 1.4410 a much higher PREN value (>40) compared to 1.4462 (~34), offering superior resistance to pitting and crevice corrosion in seawater and high-chloride environments.
1.4410 stainless steel Price per kg
The global price for 1.4410 (Super Duplex / UNS S32750 / SAF 2507) stainless steel typically ranges from $9.50 to $13.50 per kilogram, depending on the supplier and local market conditions.
Price details by form are as follows:
- Hot-rolled sheet (3–10 mm): 9.50–11.80 USD/kg
- Cold-rolled sheet (1–3 mm): 10.50–12.50 USD/kg
- Heavy plate (10–80 mm): 11.00–13.50 USD/kg
- Round steel and bars: 3.68–9.45 USD/kg (originally 350–900 INR/kg)
1.4410 / 2507 Stainless Steel Supplier and Manufacturer
If you have project requirements for 2507 (1.4410) stainless steel, we welcome your orders. GNEE maintains a large inventory of popular products for you to choose from, available in various practical forms such as plates, coils, pipes, bars, and wire. Please contact our factory today for detailed chemical composition specifications and free samples. We offer competitive prices and excellent service.
| Product Form | Specification |
| Round Bars | Dia 10mm - 450mm (Cold drawn / Hot rolled / Forged) |
| Plates / Sheets | Thickness 0.5mm - 100mm |
| Pipes / Tubes | Seamless and Welded (ASTM A789 / A790) |
| Fittings | Flanges, Elbows, Tees (ASTM A182 F53) |
| Services | Cutting, Beveling, Ultrasonic Testing (UT), Third-party inspection (SGS/TUV) |
If you require a sample MTC (Material Test Certificate) or a specific quote for 1.4410, please let us know the required product form and specifications.
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