标准:
GB9948---------中国国家标准
用途:
适用于石油精炼厂的炉管、热交换器管和管道用无缝钢管。
主要生产钢管牌号:
10、20、12CrMo 、15CrMo、1Cr2Mo、1Cr5Mo、1Crl9Ni9、1Crl9Ni11Nb等经协商,也可供应其它牌号的钢管。
机械性能:牌 号抗拉强度(Mpa)屈服强度(Mpa)伸长率(%)冲击功(J)10330~490≥205≥24/20410~550≥245≥21≥3912CrMo410~560≥205≥21≥5515CrMo440~640≥235≥21≥471Cr2Mo≥390≥175≥22≥921Cr5Mo≥390≥195≥22≥921Cr19Ni9≥520≥205≥35/1Cr19Ni11Nb≥520≥205≥35/
化学成分:
牌 号CSiMnPSCrMoNi100.17~0.240.17~0.370.35~0.65≤0.035≤0.035≤0.15/≤0.25200.17~0.240.17~0.370.35~0.65≤0.035≤0.035≤0.25/≤0.2512CrMo0.08~0.150.17~0.370.40~0.70≤0.035≤0.0350.40~0.700.40~0.55≤0.3015CrMo0.12~0.180.17~0.370.40~0.70≤0.035≤0.0350.80~1.100.40~0.55≤0.301Cr2Mo≤0.150.50~1.000.30~0.60≤0.035≤0.0352.15~2.850.45~0.65/1Cr5Mo≤0.15≤0.50≤0.60≤0.035≤0.0354.00~6.000.45~0.60≤0.601Cr19Ni90.04~0.10≤1.00≤2.00≤0.035≤0.03518.00~20.00/8.00~11.001Cr19Ni11Nb0.04~0.10≤1.00≤2.00≤0.035≤0.03517.00~20.00/9.00~13.00