1.4404 /X2CrNiMo17-12-2/316L equivalent grades
Jun 25, 2025
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As a global buyer, understanding its equivalent grades across international standards is essential for proper sourcing, quality assurance, and cost control.
This guide will help you identify 316L equivalents, compare specifications, and make informed purchasing decisions across regional markets.
Why Is It Important to Know Equivalent Grades?
✅ Global sourcing: Avoid mismatches when buying internationally
✅ Standards compliance: Align with project specs (e.g., EN 10217-7, ASTM A312, JIS G3459)
✅ Price comparison: Evaluate local alternatives without compromising quality
✅ Certification: Ensure mill test reports match buyer requirements
What Is 1.4404 / X2CrNiMo17-12-2 stainless steel?
1.4404 stainless steel, also known as X2CrNiMo17-12-2 or AISI 316L, is a low-carbon version of 316 stainless steel with added molybdenum (2–2.5%), which significantly improves resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking, especially in marine and chemical environments.
What is 316L Stainless Steel Equivalent Grades?
| Region/Standard | Equivalent Grade |
|---|---|
| EU (EN 10088) | 1.4404 / X2CrNiMo17-12-2 |
| USA (ASTM/UNS) | 316L / UNS S31603 |
| Germany (DIN) | X2CrNiMo17-12-2 |
| Japan (JIS) | SUS316L |
| China (GB) | 022Cr17Ni12Mo2 / 316L |
| Russia (GOST) | 03Х17Н13М2 |
| France (AFNOR) | Z2CND17-12 |
| UK (BS) | 316S11 / 316S31 |
What is the grade standard of 1.4404 Stainless Steel?
| Grade : | X2CrNiMo17-12-2 | |||||
| Number: | 1.4404 | |||||
| Classification: | Austenitic stainless steel | |||||
| Density: | 8 g/cm ³ | |||||
| Standard: |
|
What is chemical composition of 1.4404 stainless steel?
The Low carbon content (<0.03%) of 1.4404 stainless steel ensures excellent Intergranular Corrosion Resistance after welding, making it ideal for Pressure Vessels, Heat Exchangers, And Marine Components.
| Element | 1.4404 / 316L Range (%) |
|---|---|
| C | ≤ 0.03 |
| Cr | 16.5 – 18.5 |
| Ni | 10.0 – 13.0 |
| Mo | 2.0 – 2.5 |
| Mn | ≤ 2.0 |
| Si | ≤ 1.0 |
| N | ≤ 0.10 |
| Fe | Balance |
Mechanical Properties of 1.4404 Stainless Steel (at Room Temperature)
| Property | Typical Value (Annealed) |
|---|---|
| Tensile Strength (Rm) | 500 – 700 MPa |
| Yield Strength (Rp0.2) | ≥ 200 – 250 MPa |
| Elongation (A5) | ≥ 40% |
| Brinell Hardness (HBW) | ≤ 215 |
| Vickers Hardness (HV) | Typically ≤ 200 |
| Impact Toughness (Charpy, 20°C) | > 100 J |
| Modulus of Elasticity | ~193 GPa |
| Density | ~7.98 g/cm³ |
Heat Treatment of 1.4404 / 316L Stainless Steel
1. Solution Annealing
Temperature Range: 1010 – 1120°C
Cooling Method: Rapid cooling in water or air
Purpose:Dissolve carbide precipitates,Restore full corrosion resistance after welding or cold work,Relieve internal stresses
1.4404 / 316L Stainless Steel Elevated Temperature
| Temperature (°C) | Strength Behavior | Recommendation |
|---|---|---|
| ≤ 300°C | Stable performance | Suitable for hot water and mild steam |
| 400–500°C | Gradual strength loss | Use caution in long-term applications |
| ≥ 550°C | Rapid degradation | Consider heat-resistant steels like 1.4845 |
If you're looking for a reliable supplier of 1.4404 / X2CrNiMo17-12-2, Gnee can help you get the right product with full certification, competitive pricing, and global logistics support,With over 18 years of experience, Gnee offers high-quality 1.4404 / 316L stainless steel in plate, coil, pipe, and tube forms, serving clients in more than 60 countries.
we offer
Full compliance with EN, ASTM, JIS standards
EN 10204 3.1 MTCs + Third-party inspection support
Surface finish: 2B, BA, No.1, No.4, Mirror
Processing: cutting, bending, polishing, slitting
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