Resistence of Temper Embrittlment of Hydrogen-contacting A387 Gr 11 CL2 steel plate

Hydrogen is generally an additional requirement in the technical conditions of Cr-Mo steel. A387 Gr 11 CL2 hydrogen-based steel plate has strict requirements on the temper brittleness ability based on the general mechanical properties.

Ways to improve the temper embrittlement resistance of A387 Gr 11 CL2 hydrogen-plated steel sheets are

(1) Strict control on smelting, especially the control of harmful and harmful elements such as P, Sn, As, Sb;
(2) Optimization and adjustment of heat treatment process. A387 Gr 11 CL2 is a common grade of Cr-Mo hydrogen-based steel in ASTM, similar to Chinese label 14Cr1MoR, Cr and Mo ratio is 1.25:1

Hydrogen A387 Gr 11 CL2 adopts weak water cooling method after normalizing, and the final metallographic structure of the steel plate is lath bainite, which can obviously improve the anti-brittle tendency performance of the steel plate after simulated post-weld heat treatment. The increase in tempering temperature increases the temperature of the ductile-brittle transition temperature of the hydrogen-rich A387 Gr 11 CL2 steel plate.

The following is the rolling size of A387 Gr 11 CL2 steel plate katalor supplied

Notes: coil thickness ≤ 25mm

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