钢管种类 |
外径(D) |
壁厚(S) | ||
钢管外径(mm) |
允许偏差(mm) |
钢管壁厚(mm) |
允许偏差(mm) | |
热轧管 |
>219~457 |
±1.0% |
≤20 |
-10%,+12.5% |
>20~40 |
-10%,+10% | |||
>457~1066 |
±0.9% |
>40~70 |
-7%,+9% | |
>70~120 |
-6%,+8% |
力学性能:
标准 |
牌号 |
抗拉强度(MPa) |
屈服强度(MPa) |
伸长率(%) |
冲击功(J) |
硬度 | |
GB3087 |
10 |
335~475 |
≥195 |
≥24 |
/ | ||
20 |
410~550 |
≥245 |
≥20 |
/ | |||
GB5310 |
20G |
410~550 |
≥245 |
≥24 |
≥35 |
/ | |
20MnG |
≥415 |
≥240 |
≥22 |
≥35 |
/ | ||
25MnG |
≥485 |
≥275 |
≥20 |
≥35 |
/ | ||
15CrMoG |
440~640 |
≥235 |
≥21 |
≥35 |
/ | ||
12Cr2MoG |
450~600 |
≥280 |
≥20 |
≥35 |
/ | ||
12Cr1MoVG |
470~640 |
≥255 |
≥21 |
≥35 |
/ | ||
10Cr9Mo1VNb |
≥585 |
≥415 |
≥20 |
≥35 |
/ | ||
ASME SA106 |
SA106B |
≥415 |
≥240 |
≥22 |
≥35 |
/ | |
SA106C |
≥485 |
≥275 |
≥20 |
≥35 |
/ | ||
ASME SA333 |
SA333Ⅰ级 |
≥380 |
≥205 |
≥28 |
-45≥18 |
/ | |
ASME SA335 |
SA335 P11 |
≥415 |
≥205 |
≥22 |
≥35 |
≤163HB | |
SA335 P12 |
≥415 |
≥220 |
≥22 |
≥35 |
≤163HB | ||
SA335 P22 |
≥415 |
≥205 |
≥22 |
≥35 |
≤163HB | ||
SA335 P5 |
≥415 |
≥205 |
≥22 |
≥35 |
≤187HB | ||
SA335 P91 |
585~760 |
≥415 |
≥20 |
≥35 |
≤250HB | ||
SA335 P92 |
≥620 |
≥440 |
≥20 |
≥35 |
250HB | ||
DIN17175 |
ST45.8/Ⅲ |
410~530 |
≥255 |
≥21 |
≥27(DVM) |
/ | |
15Mo3 |
450~600 |
≥270 |
≥22 |
≥34(DVM) |
/ | ||
13CrMo44 |
440~590 |
≥290 |
≥22 |
≥34(DVM) |
/ | ||
10CrMo910 |
480~630 |
≥280 |
≥20 |
≥34(DVM) |
/ | ||
EN10216-2 |
15NiCuMoNb5-6-4 (WB36) |
610~780 |
≥440 |
≥19 |
≥40 |
/ |
化学成分:
标准 |
牌号 |
化学成分(%) | |||||||||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
Al |
W |
Nb |
N | ||
GB3087 |
10 |
0.07~0.13 |
0.17~0.37 |
0.38~0.65 |
≤0.030 |
≤0.030 |
0.3~0.65 |
/ |
≤0.25 |
≤0.30 |
/ |
/ | |||
20 |
0.17~0.23 |
0.17~0.37 |
0.38~0.65 |
≤0.030 |
≤0.030 |
0.3~0.65 |
/ |
≤0.25 |
≤0.30 |
/ |
/ | ||||
GB5310 |
20G |
0.17~0.24 |
0.17~0.37 |
0.35~0.65 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 | ||||
20MnG |
0.17~0.25 |
0.17~0.37 |
0.70~1.00 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 | |||||
25MnG |
0.23~0.27 |
0.17~0.37 |
0.70~1.00 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 | |||||
15CrMo |
0.12~0.18 |
0.17~0.37 |
0.40~0.70 |
≤0.030 |
≤0.030 |
0.80~1.10 |
0.40~0.55 |
≤0.20 |
≤0.30 | ||||||
12Cr2MoG |
0.08~0.15 |
≤0.50 |
0.40~0.70 |
≤0.030 |
≤0.030 |
2.00~2.50 |
0.90~1.20 |
≤0.20 |
≤0.30 | ||||||
12Cr1MoV |
0.08~0.15 |
0.17~0.37 |
0.40~0.70 |
≤0.030 |
≤0.030 |
0.90~1.20 |
0.25~0.35 |
≤0.20 |
≤0.30 |
0.15~0.30 | |||||
10Cr9Mo1VNb |
0.08~0.12 |
0.20~0.50 |
0.30~0.60 |
≤0.020 |
≤0.010 |
8.00~9.50 |
0.85~1.05 |
≤0.20 |
≤0.40 |
0.18~0.25 |
≤0.015 |
0.06~0.10 |
0.03~0.07 | ||
ASME SA106 |
SA106B |
0.17~0.25 |
≥0.1 |
0.70~1.00 |
≤0.030 |
≤0.030 | |||||||||
SA106C |
0.23~0.27 |
≥0.1 |
0.70~1.00 |
≤0.030 |
≤0.030 | ||||||||||
ASME SA333 |
SA333Ⅰ级 |
0.09~0.12 |
/ |
0.7~1.00 |
≤0.020 |
≤0.010 | |||||||||
SA333Ⅵ级 |
0.09~0.12 |
≥0.1 |
0.9~1.10 |
≤0.020 |
≤0.010 | ||||||||||
ASME SA335 |
SA335 P11 |
0.05~0.15 |
0.50~1.0 |
0.30~0.60 |
≤0.030 |
≤0.030 |
1.00~1.50 |
0.50~1.00 | |||||||
SA335 P12 |
0.05~0.15 |
≤0.50 |
0.30~0.61 |
≤0.030 |
≤0.030 |
0.80~1.25 |
0.44~0.65 | ||||||||
SA335 P22 |
0.05~0.15 |
≤0.50 | 0.30~0.60 |
≤0.030 |
≤0.030 |
1.90~2.60 |
0.87~1.13 | ||||||||
SA335 P5 |
≤0.15 |
≤0.50 |
0.30~0.60 |
≤0.030 |
≤0.030 |
4.00/6.00 |
0.45/0.65 | ||||||||
SA335 P91 |
0.08~0.12 |
0.20~0.50 |
0.30~0.60 |
≤0.020 |
≤0.010 |
8.00~9.50 |
0.85~1.05 |
≤0.40 |
0.18~0.25 |
≤0.015 |
0.06~0.10 |
0.03~0.07 | |||
SA335 P92 |
0.07~0.13 |
≤0.50 |
0.30~0.60 |
≤0.020 |
≤0.010 |
8.50~9.50 |
0.30~0.60 |
0.30~0.60 |
≤0.40 |
0.15~0.25 |
≤0.015 |
1.50~2.00 |
0.04~0.09 |
0.03~0.07 | |
DIN 17175 |
ST45.8/Ⅲ |
≤0.21 |
0.10~0.35 |
0.40~1.20 |
≤0.040 |
≤0.040 |
≤0.30 | ||||||||
15Mo3 |
0.12~0.20 |
0.10~0.35 |
0.40~0.80 |
≤0.035 |
≤0.035 |
0.25~0.35 | |||||||||
13CrMo44 |
0.10~0.18 |
0.10~0.35 |
0.40~0.70 |
≤0.035 |
≤0.035 |
0.70~1.10 |
0.45~0.65 | ||||||||
10CrMo910 |
0.08~0.15 |
≤0.50 |
0.30~0.70 |
≤0.025 |
≤0.020 |
2.00~2.50 |
0.90~1.10 |
≤0.30 |
≤0.30 |
≤0.015 | |||||
EN1021 6-2 |
15NiCuMoNb5-6-4 (WB36) |
≤0.17 |
0.25~0.50 |
0.80~1.20 |
≤0.025 |
≤0.020 |
≤0.30 |
0.25~0.50 |
0.50~0.80 |
1.00~1.30 |
≤0.05 |
0.015~0.045 |