J and L type 201LN is an austenitic chromium-nickel-manganese stainless steel with a lower carbon content and with added nitrogen compared to J and L type 201 (see Alloy Digest SS-768, November 1999). Type 201LN work hardens to high tensile strengths while maintaining good toughness, even to cryogenic temperatures. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-771. Producer or source: J & L Specialty Steel Inc.

Allegheny Ludlum Type 201LN (AL 201LN) is a modification of Type 201 developed especially for cryogenic service to -195 deg C (-320 deg F) to handle industrial gases. Its strength and corrosion resistance also allow other applications. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as forming. Filing Code: SS-1000. Producer or source: Allegheny Ludlum.

ATI 201LN is an austenitic stainless steel that was specifically created for sub-zero temperature service down to –196 °C (–320 °F). It has replaced the familiar 300 series austenitic stainless steels such as type 301 and type 304 in many applications based upon technical equivalency and economic considerations. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1347. Producer or source: ATI.