14-120厚,最宽至4000mm,临氢铬钼钢专用特殊钢12MnNiVR、14Cr1MoR(H)、SA387Gr11(22)CL2、07MnNiMoVDR、NM400、SA203E等。
基本信息
抗拉强度 σb (MPa):≥930(95)
屈服强度 σs (MPa):≥785(80)
伸长率 δ5 (%):≥14
断面收缩率 ψ (%):≥55
冲击功 Akv (J):≥63
冲击韧性值 αkv (J/cm2):≥78(8)
硬度 :≤241HB
试样尺寸:试样毛坯尺寸为25mm
热处理规范及金相组织:
热处理规范:淬火900℃,油冷;回火640℃,空冷
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