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)
|
10
|
330~490
|
≥205
|
≥24
|
/
|
20
|
410~550
|
≥245
|
≥21
|
≥39
|
12CrMo
|
410~560
|
≥205
|
≥21
|
≥55
|
15CrMo
|
440~640
|
≥235
|
≥21
|
≥47
|
1Cr2Mo
|
≥390
|
≥175
|
≥22
|
≥92
|
1Cr5Mo
|
≥390
|
≥195
|
≥22
|
≥92
|
1Cr19Ni9
|
≥520
|
≥205
|
≥35
|
/
|
1Cr19Ni11Nb
|
≥520
|
≥205
|
≥35
|
/
|
化学成分:
牌 号
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Ni
|
10
|
0.17~0.24
|
0.17~0.37
|
0.35~0.65
|
≤0.035
|
≤0.035
|
≤0.15
|
/
|
≤0.25
|
20
|
0.17~0.24
|
0.17~0.37
|
0.35~0.65
|
≤0.035
|
≤0.035
|
≤0.25
|
/
|
≤0.25
|
12CrMo
|
0.08~0.15
|
0.17~0.37
|
0.40~0.70
|
≤0.035
|
≤0.035
|
0.40~0.70
|
0.40~0.55
|
≤0.30
|
15CrMo
|
0.12~0.18
|
0.17~0.37
|
0.40~0.70
|
≤0.035
|
≤0.035
|
0.80~1.10
|
0.40~0.55
|
≤0.30
|
1Cr2Mo
|
≤0.15
|
0.50~1.00
|
0.30~0.60
|
≤0.035
|
≤0.035
|
2.15~2.85
|
0.45~0.65
|
/
|
1Cr5Mo
|
≤0.15
|
≤0.50
|
≤0.60
|
≤0.035
|
≤0.035
|
4.00~6.00
|
0.45~0.60
|
≤0.60
|
1Cr19Ni9
|
0.04~0.10
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.035
|
18.00~20.00
|
/
|
8.00~11.00
|
1Cr19Ni11Nb
|
0.04~0.10
|
≤1.00
|
≤2.00
|
≤0.035
|
≤0.035
|
17.00~20.00
|
/
|
9.00~13.00
|