1.4401 material equivalent
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What is the 1.4401 material specification?
EN 1.4401 grade 316 stainless steel (16% chromium, 10% nickel, and 2% molybdenum) is the second most important austenitic stainless steel compared to 304. The added molybdenum and higher nickel content of 316 give it greater corrosion resistance in many aggressive environments compared to 304. EN 1.4401 stainless steel is commonly available in tubes, plates, coils, and bars. We have a large inventory, so please feel free to inquire!
What is the ASTM equivalent of 1.4401 stainless steel?
EN 1.4401 stainless steel is equivalent to the American standard AISI 316. It is also known as grade 316 or UNS S31600. This austenitic stainless steel is characterized by its molybdenum content, which enhances its corrosion resistance, particularly in chloride environments.
| EU EN |
USA - |
Germany DIN,WNr |
Japan JIS |
France AFNOR |
England BS |
Italy UNI |
China GB |
Russia GOST |
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| X5CrNiMo17-12-2 |
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en 1.4401 stainless steel specification
1.Chemical composition % of steel X5CrNiMo17-12-2 (1.4401): EN 10088-2-2005
Particular ranges of sulphur content may provide improvement of particular properties. For machinability a controlled sulphur content of 0.015 % to 0.030% is recommended and permitted. For weldability, a controlled sulphur content of 0.008 % to 0.030 % is recommended and permitted. For polishability, a controlled sulphur content of 0.015 % max is recommended.
| Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. |
| C | Si | Mn | Ni | P | S | Cr | Mo | N |
| max 0.07 | max 1 | max 2 | 10 - 13 | max 0.045 | max 0.015 | 16.5 - 18.5 | 2 - 2.5 | max 0.11 |
2. Mechanical Properties (Typical Values at Room Temperature)
| Mechanical Property | Value |
|---|---|
| Proof Stress | 200 Min MPa |
| Tensile Strength | 500 to 700 MPa |
| Elongation A50 mm | 40 Min % |
| Hardness Brinell | 215 Max HB |
3.Physical Property
| Physical Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1400 °C |
| Thermal Expansion | 15.9 x10^-6 /K |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity | 16.3 W/m.K |
| Electrical Resistivity | 0.74 x10^-6 Ω .m |
1.4401 material properties
Corrosion Resistance of 1.4401 Stainless Steel
1.4401 stainless steel offers superior corrosion resistance compared to standard 304 stainless steel, thanks to its molybdenum content (2-3%) and chromium content (16-18%). This alloy demonstrates outstanding resistance to pitting and crevice corrosion-common in chloride-rich environments such as marine environments, coastal infrastructure, or chemical processing plants handling salt solutions.
Weldability of 1.4401 Stainless Steel
1.4401 stainless steel exhibits excellent weldability in welding processes such as tungsten inert gas welding (TIG) (GTAW), metal inert gas welding (MIG) (GMAW), shielded metal arc welding (SMAW), and submerged arc welding (SAW). For thick-walled or high-stress applications, the low carbon content of this alloy (typically ≤0.08%) reduces intergranular corrosion susceptibility, making post-weld annealing optional.
Workability of 1.4401 Stainless Steel
In cold working (e.g., bending, rolling, stamping), it maintains good ductility, but work hardening gradually occurs-for complex or heavy cold forming operations, intermediate annealing may be required to restore ductility and prevent cracking.
For hot working, it performs optimally within a temperature range of 1100-1200°C (2012-2192°F). Uniform heating ensures consistent deformation; rapid cooling after hot working (e.g., water quenching) is recommended to maintain its austenitic structure and avoid carbide precipitation.
Heat Treatment
316 stainless steel cannot be hardened by heat treatment.
Solution treatment or annealing can be done by rapid cooling after heating to 1010-1120°C.
Is 1.4401 stainless steel magnetic?
No, 1.4401 (which is equivalent to AISI 316) stainless steel is generally not magnetic because it is an austenitic stainless steel, a type that is non-magnetic in its annealed state.
What is the difference between 1.4401 and 316L?
AISI 316L differs from AISI 316 in its lower carbon content. The "L" stands for "low carbon" in this case. The materials 1.4401 and 1.4404, which belong to the V4A Group, are easy to machine and weld. With the addition of 2-2.5% molybdenum, both grades show good corrosion resistance even in the presence of chlorides.
1.4401 stainless steel professional supplier
With the rapid development of marine engineering, high-end chemical equipment, and environmental energy sectors, the demand for materials that combine high strength, excellent corrosion resistance, and high-temperature stability has been steadily increasing. 1.4401 stainless steel (AISI 316/EN 1.4401), with its superior resistance to pitting, crevice corrosion, and high-temperature oxidation, has become one of the preferred materials in these fields.
As a professional supplier, GNEE provides a comprehensive range of 1.4401 stainless steel products: including 1.4401 stainless steel plates, 1.4401 stainless steel pipes, 1.4401 stainless steel rods, and 1.4401 stainless steel wires, meeting the precise needs of diverse industrial applications. All products strictly comply with ASTM, EN, and other international standards, and are certified by SGS, BV, and TÜV third-party testing, ensuring reliability and performance. Additionally, we offer customized processing services (such as cutting, welding, and surface polishing), supported by an efficient and flexible supply chain system to help your projects succeed seamlessly.
