1.4307 Stainless Steel Composition: Low‑Carbon Austenitic Grade for Improved Weldability
1.4307 (X2CrNi18‑9) is the low‑carbon austenitic stainless steel grade under EN 10028‑7 and EN 10088‑2, equivalent to 304L. With 17.5–19.5% chromium, 8–10.5% nickel, and a carbon content below 0.03%, it offers superior resistance to intergranular corrosion in welded joints, making it ideal for welded structures and pressure equipment.
Compared with 1.4301, 1.4307 maintains corrosion resistance after welding without requiring post‑weld heat treatment. It is widely used in pressure vessels, storage tanks, piping systems, food‑grade equipment, and chemical installations. Its formability and workability remain consistent with the 304 family, supporting deep drawing, bending, and welding operations.
1.4307 is supplied as sheets, plates, strips, tubes, and bars. Its low‑carbon design minimizes carbide precipitation, ensuring long‑term stability in corrosive environments and making it a preferred choice for fabrication‑intensive applications.
Compared with 1.4301, 1.4307 maintains corrosion resistance after welding without requiring post‑weld heat treatment. It is widely used in pressure vessels, storage tanks, piping systems, food‑grade equipment, and chemical installations. Its formability and workability remain consistent with the 304 family, supporting deep drawing, bending, and welding operations.
1.4307 is supplied as sheets, plates, strips, tubes, and bars. Its low‑carbon design minimizes carbide precipitation, ensuring long‑term stability in corrosive environments and making it a preferred choice for fabrication‑intensive applications.