无缝钢管 42crmo钢冶炼工艺操作要点

无缝钢管 42crmo

 

 

1 技术条件 

1.1 技术标准GB/T3077-1999、YB/T054-1994、YB/T5221-1993及JNTG/J等相关技术协议。 

1.2 化学成分:钢中化学元素的含量应符合表1、表2和表3的规定。

42CrMo钢管属于超高强度钢,具有高强度和韧性,淬透性也较好,无明显的回火脆性,调质处理后有较高的疲劳极限和抗多次冲击能力,低温冲击韧性良好。该钢适宜制造要求一定强度和韧性的大、中型塑料模具。无缝钢管的材质42crmo。

表1  钢中主要元素的含量范围 

钢种 条件 C% Mn% 

Si% 

Cr% 

Mo% 

12CrMo GB/T3077 

0.08~0.15 

0.40~0.70 0.17~0.37 0.40~0.70 0.40~0.55 

15CrMo GB/T3077 0.12~0.18 0.40~0.70 0.17~0.37 0.80~1.10 0.40~0.55 20CrMo GB/T3077 0.17~0.24 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 20CrMoA YB/T054 

0.17~0.24 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 

20CrMoA JNTG/J02 0.18~0.24 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 20CrMoA JNTG/J03 0.17~0.24 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 20CrMoA JNTG/J06 0.17~0.24 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 20CrMoA SLWL/CYG 0.17~0.24 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 20CrMoA JNTG/J11 0.17~0.24 0.40~0.70 0.17~0.37 0.80~1.10 0.19~0.22 SCM420 JNTG/J36 0.18~0.23 0.65~0.85 0.15~0.35 0.90~1.20 0.15~0.30 25CrMoA JNTG/J02 0.22~0.28 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 30CrMo GB/T3077 0.26~0.34 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 30CrMoA GB/T3077 0.26~0.33 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 30CrMoA JNTG/J06 0.28~0.35 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 35CrMo GB/T3077 0.32~0.40 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 35CrMoA YB/T054 

0.32~0.40 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 

35CrMoA JNTG/J03 0.32~0.40 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 35CrMoA JNTG/J06 0.32~0.40 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 35CrMoA JNTG/J11 0.32~0.40 0.40~0.70 0.17~0.37 0.80~1.10 0.19~0.22 35CrMoA JNTG/J23 0.32~0.40 0.40~0.70 0.17~0.37 0.80~1.10 0.15~0.25 42CrMo GB/T3077 0.38~0.45 0.50~0.80 0.17~0.37 0.90~1.20 0.15~0.25 42CrMoA YB/T054 

0.38~0.45 0.50~0.80 0.17~0.37 0.90~1.20 0.15~0.25 

42CrMoA JNTG/J11 0.38~0.45 0.50~0.80 0.17~0.37 0.90~1.20 0.19~0.22 42CrMo JNTG/J28 0.41~0.46 0.50~0.80 0.17~0.37 0.90~1.20 0.15~0.25 42CrMo(B 7) JNTG/J09 0.38~0.42 0.75~1.10 0.15~0.35 0.90~1.10 0.17~0.19 

50CrMo4 JNTG/J36 0.48~0.53 0.50~0.80 0.15~0.35 0.90~1.20 0.15~0.25 55CrMo 

JNTG/J39 0.52~0.57 0.50~0.80 0.17~0.37 0.90~1.10 0.15~0.25 

注:1、JNTG/J01、JNTG/J34的20CrMoA,JNTG/J16的20CrMoA、35CrMoA ,JNTG/J15


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