特洛利金属材料提供参考资料

　　合金结构钢:8620H

　　执行标准: ASTM A304

　　化学成份（国家标准）碳 C :0.18～0.23

　　硅 Si:0.15～0.35

　　锰 Mn:0.70～0.90

　　硫 S :允许残余含量≤0.035

　　磷 P :允许残余含量≤0.035

　　铬 Cr:0.40～0.60

　　镍 Ni:0.40～0.70

　　铜 Cu:允许残余含量≤0.030

　　钼 Mo:0.15～0.25

　　昆山特洛利金属材料有限公司提供参考资料

　　抗拉强度 σb (MPa):≥980(100)

　　屈服强度 σs (MPa):≥785(80)

　　伸长率 δ5 (%):≥9

　　断面收缩率 ψ (%):≥40

　　冲击功 Akv (J):≥47

　　冲击韧性值 αkv (J/cm2):≥59(6)

　　硬度 :≤197HB

　　试样尺寸:试样毛坯尺寸为15mm

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