en 10088 1.4404 x2crnimo17-12-2 Material
Aug 05, 2025
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EN 1.4404, also designated as X2CrNiMo17-12-2 under the EN 10088 standard, is the European equivalent of AISI 316L stainless steel. It is a low-carbon austenitic stainless steel alloyed with molybdenum for enhanced corrosion resistance, especially in chloride-containing environments. Thanks to its excellent weldability, formability, and chemical stability, EN 1.4404 is widely used in chemical, marine, pharmaceutical, and food processing industries.
What is EN 1.4404 stainless steel equivalent to?
EN 1.4404 is the European equivalent of AISI 316L. It offers similar corrosion resistance and mechanical performance, with added molybdenum and low carbon content.
1. Chemical Composition of EN 1.4404 / X2CrNiMo17-12-2
| Element | Content (% by weight) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 16.5 – 18.5 |
| Nickel (Ni) | 10.0 – 13.0 |
| Molybdenum (Mo) | 2.0 – 2.5 |
| Nitrogen (N) | ≤ 0.11 |
| Iron (Fe) | Balance |
Mechanical & Physical Properties
| Property | Typical Value |
|---|---|
| Density | 8.00 g/cm³ |
| Tensile Strength | 500 – 700 MPa |
| Yield Strength (0.2% proof) | ≥ 190 MPa |
| Elongation at Break | ≥ 40% |
| Modulus of Elasticity (20°C) | ~200 GPa |
| Thermal Conductivity (20°C) | 16.3 W/m·K |
| Specific Heat (20°C) | 500 J/kg·K |
| Magnetic Properties | Non-magnetic (annealed) |
What does X2CrNiMo17-12-2 mean?
A: This is the material designation under EN 10088:
X2 = low carbon (≤0.03%)
Cr = Chromium (~17%)
Ni = Nickel (~12%)
Mo = Molybdenum (~2%)
It describes the approximate chemical content of the alloy.
Is EN 1.4404 stainless steel magnetic?
A: No, it is non-magnetic in the annealed condition. Cold working may introduce slight magnetism, but it remains mostly non-magnetic.
Is EN 1.4404 suitable for seawater applications?
Yes. Thanks to 2–2.5% molybdenum, 1.4404 has enhanced pitting resistance in saline environments, making it suitable for coastal and marine applications.
Can EN 1.4404 be welded?
Yes. It has excellent weldability without requiring post-weld heat treatment. It is resistant to sensitization due to its low carbon content.
What standards cover EN 1.4404 stainless steel?
A:EN 10088-2 (sheet, plate, strip)
ASTM A240 (flat products)
ASTM A312 (pipes)
ASTM A276 (bars)
ISO 15510
who choose us?
GNEE supplies high-quality 1.4401 cold- and hot-rolled sheet and plate, 1.4401 welded and seamless tubes (ASTM A312 / EN 10216-5), 1.4401 round and hexagonal bars (ASTM A276), 1.4401 coils and strips, and 1.4401 fittings and flanges. All materials come with an EN 10204 3.1 mill test certificate and comply with EN 10088-2, ASTM A240, and ASTM A276 standards.
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