Maraging steel, other than those specified by 1C116 or 1C216. Technical notes: 1. The phrase maraging steel ‘capable of’ encompasses maraging steel before or after heat treatment. 2. Maraging steels are iron alloys generally characterised by high nickel, very low carbon content and the use of substitutional elements or precipitates to produce strengthening and age-hardening of the alloy.

Steel alloys in sheet or plate form, having any of the following characteristics: (a) Steel alloys ‘capable of’ ultimate tensile strength of 1 200 MPa or more, at 293 K (20 °C); or (b) Nitrogen-stabilised duplex stainless steel. Note: The phrase alloys ‘capable of’ encompasses alloys before or after heat treatment Technical Note: ‘Nitrogen-stabilised duplex stainless steel’ has a two-phase microstructure consisting of grains of ferritic and austenitic steel with the addition of nitrogen to stabilise the microstructure.

Steel alloys in sheet or plate form, having any of the following characteristics: (a) Steel alloys ‘capable of’ ultimate tensile strength of 1 200 MPa or more, at 293 K (20 °C); or (b) Nitrogen-stabilised duplex stainless steel. Note : the phrase alloys ‘capable of’ encompasses alloys before or after heat treatment. Technical note : ‘nitrogen-stabilised duplex stainless steel’ has a two-phase microstructure consisting of grains of ferritic and austenitic steel with the addition of nitrogen to stabilise the microstructure.

Maraging steels, useable in ‘missiles’, having all of the following: N.B.: SEE ALSO 1C216.

Grade 304, 316 and austenitic stainless steel plates, valves, piping, tanks and vessels (pipes and valves greater than 8-in diameter and rated for 500 psi and tanks greater than 500 l)

Grade 304, 316 and austenitic stainless steel plates, valves, piping, tanks and vessels (pipes and valves greater than 8-in diameter and rated for 500 psi and tanks greater than 500 l)

Program information