ASTM5145合金结构钢

　　化学成分：碳C：0.43 ～0.48硅SI：0.15 ～0.35漫画MN：0.70 ～0.90 sulfa s：允许剩余含量≤0.035磷phosphorus p：允许剩余含量≤0.035Chromium cr：0.70 Chromium cr：0.70 ni Ni ni ni：0.70 ni Ni ni：允许的镍ni Ni ni：允许的镍ni Ni ni：0.035 ≤永久0.030铜Cu：允许残留含量≤0.030●机械性能：拉伸强度σb（MPA）：≥1030（105）列出强度σs（MPA）：≥835（85）（85）延伸δ5（％）δ5（％）：≥9节段捕获缩写缩写捕获缩写缩写缩写捕获量率ψ（％）：≥40冲击Akv（j）：≥39冲击韧性αKV（j/cm2）：≥49（5）：≤217Hb：≤217Hb：试样试样试样黄金相组织：热处理规格：淬火840°C，油冷却；恢复520°C，水冷却，油冷却。

　　ASTM5145 plates can be called ASTM5145 steel plate, ASTM5145 steel plate, ASTM5145 roll plate, ASTM5145 open tablet, ASTM5145 band steel, ASTM5145 cold rolled board, ASTM5145 hot rolled plate, ASTM5145 medium plate, ASTM5145 thick board, ASTM5145 special thickness board, etc.本质

　　ASTM5145 rod can be called ASTM5145 round steel, ASTM5145 round steel, ASTM5145 disk circle, ASTM5145 wire, ASTM5145 silk material, ASTM5145 forging circle, ASTM5145 round rod, ASTM5145 hairy circle, ASTM5145 light circle, ASTM5145 , ASTM5145 hot -rolled round steel, ASTM5145滚动，ASTM5145冷拉圆钢等。

　　ASTM5145 pipes can be called ASTM5145 steel pipes, ASTM5145 steel pipes, ASTM5145 seamless pipes, ASTM5145 seamless pipes, ASTM5145 welded pipes, ASTM5145 welded pipes, ASTM5145 precision pipes, ASTM5145 capacity pipes, etc.