What grade of steel is 1.4307?
The steel grade 1.4307 (also called ASTM 304/ 304L – SS2333) is a general purpose stainless steel, called 18-8-steel, with good corrosion resistant, impact strength and formability.
What material is equivalent to 1.4307?
The stainless steel grade 1.4307 is equivalent to AISI 304L and UNS S30403. It is a low-carbon version of 304 stainless steel, offering improved weldability in heavy gauge components.
| EU EN |
USA - |
Japan JIS |
France AFNOR |
England BS |
Sweden SS |
Russia GOST |
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| X2CrNi18-9 |
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1.4307 Steel Chemical Composition
| Chemical Element | % Present |
|---|---|
| Carbon (C) | 0.0 - 0.03 |
| Chromium (Cr) | 17.50 - 19.50 |
| Manganese (Mn) | 0.0 - 2.00 |
| Silicon (Si) | 0.0 - 1.00 |
| Phosphorous (P) | 0.0 - 0.05 |
| Sulphur (S) | 0.0 - 0.02 |
| Nickel (Ni) | 8.00 - 10.50 |
| Nitrogen (N) | 0.0 - 0.11 |
| Iron (Fe) | Balance |
1.4307 Steel physics Properties
| Physical Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1450 °C |
| Thermal Expansion | 17.2 x10^-6 /K |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity | 16.2 W/m.K |
| Electrical Resistivity | 0.72 x10^-6 Ω .m |
Spec: EN 10088-2:2005
Sheet - Up to 8mm Thick
| Mechanical Property | Value |
|---|---|
| Proof Stress | 220 Min MPa |
| Tensile Strength | 520 to 700 MPa |
| Elongation A50 mm | 45 Min % |
Spec: EN 10088-2:2005
Plate - From 8mm to 75mm Thick
| Mechanical Property | Value |
|---|---|
| Proof Stress | 200 Min MPa |
| Tensile Strength | 500 to 700 MPa |
| Elongation A50 mm | 45 Min % |
Is 1.4307 stainless steel magnetic?
No, 1.4307 stainless steel (also known as 304L) is generally non-magnetic. However, it can become slightly magnetic under certain conditions, specifically after cold working or welding.
What is the difference between 1.4301 and 1.4307 stainless steel?
In summary, EN 1.4301 (AISI 304) is generally preferred when higher mechanical strength and wear resistance are required, while EN 1.4307 (AISI 304L) is a better choice for applications involving extensive welding or exposure to corrosive environments. The final choice depends on the specific needs of the application.

who choose us?
GNEE supplies hot-rolled and cold-rolled 1.4307 stainless steel plate. Our plate thicknesses range from 0.3 mm to over 50 mm and can be cut to size within tight tolerances. We provide MTCs (Mill Test Certificates) and offer 2B, BA, No. 1, or polished finishes. Custom packaging is available for export.
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Email: es@gescosteel.com
