Directory of stainless steel grades

AISI 316F | S31620 is a low-carbon modification of the popular AISI 316 stainless steel grade. It contains iron, carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel and molybdenum. The addition of molybdenum gives AISI 316F better resistance to corrosion and pitting, making it ideal for use in aggressive conditions.

Details: Written by: ukirs; Published: 03 February 2025; Created: 03 February 2025; Last Updated: 21 November 2025; Hits: 794

AISI 384 | S38400 is an austenitic stainless steel designed for primary forming into forged products. One of the most widely used precipitation hardening grades in industry. Although the alloy is soft and ductile in the solution annealed condition, it is capable of acquiring high properties after a single precipitation or aging treatment.

Details: Written by: ukirs; Published: 03 February 2025; Created: 03 February 2025; Last Updated: 21 November 2025; Hits: 656

AISI 316N | S31651 is a standard austenitic stainless steel grade containing molybdenum. It has excellent formability and excellent welding characteristics. It has found quite wide application in various industries, architecture and transport. AISI 316N is a non-hardened austenitic steel with a carbon content of 0.08%.

Details: Written by: ukirs; Published: 03 February 2025; Created: 03 February 2025; Last Updated: 21 November 2025; Hits: 547

AISI 304N | S30451 - The stainless steel version of AISI 304 is strengthened by adding nitrogen to its composition. This means that when comparing the two grades, AISI 304N has a higher tensile strength. This makes it an ideal material for applications where strength is important, such as in the marine environment or in manufacturing projects requiring high-strength materials.

Details: Written by: ukirs; Published: 03 February 2025; Created: 03 February 2025; Last Updated: 21 November 2025; Hits: 621

AISI 216 | S21600 is a non-standard austenitic stainless steel of the 200 series. It is commonly referred to as AISI type 216 chromium-manganese-nickel steel. The high content of manganese (Mn = 7.5 - 9.0%), chromium (Cr = 17.5 - 22.0%) and 5.0 - 7.0% nickel + 2 - 3% molybdenum in its composition makes this steel one of the best of the 200 series. In general, it is characterized by good corrosion resistance, high elasticity, toughness and strength.

Details: Written by: ukirs; Published: 03 February 2025; Created: 03 February 2025; Last Updated: 21 November 2025; Hits: 1228

AISI 203 | S20300 is one of the 200 series austenitic stainless steels containing a high percentage of chromium and nickel. The nickel and chromium content makes the alloy resistant to many chemicals, including chlorine, sulfuric and nitric acids. As a result, it is not affected by extreme temperatures and is often used in cryogenic systems.