天津市津普利通钢铁有限公司
电 话:022-86909656、58653981
传 真:022-85100507
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网 址:www.ltgxs.com
地 址:中国·天津
尺寸公差:
钢管种类 |
钢管外径(D) |
钢管壁厚(S) | ||
管体 |
钢管外径 (mm) |
允许偏差(mm) |
钢管外径(mm) |
允许偏差(mm) |
≥60.3且S<20 |
±0.75% |
≤73.0 |
+15%,-12.5% | |
≥60.3且S≥20 |
±1.00% |
>73.0且S<20 |
+15%,-12.5% | |
>73.0且S≥20 |
+17.5%,-10 |
API SPEC 5L 化学成分
|
产品规定类别 |
钢级 |
化学成分 Chemical composition, % | ||||||||
C |
Mn |
P |
S |
Si |
V |
Nb |
Ti |
CEpcm | |||
API 5L GB/T9711.2 |
PSL 1 |
A or L210 |
≤0.22 |
≤0.90 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 |
B or L245 |
≤0.28 |
≤1.20 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
x42 or L290 |
≤0.28 |
≤1.30 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X46 or L320 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X52 or L360 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X56 or L390 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X60 or L415 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
PSL 2 |
BR or L245R |
≤0.24 |
≤1.20 |
≤0.025 |
≤0.015 |
≤0.40 |
c |
c |
≤0.04 |
≤0.25 | |
X42R or L290R |
≤0.24 |
≤1.20 |
≤0.025 |
≤0.015 |
≤0.40 |
≤0.06 |
≤0.05 |
≤0.04 |
≤0.25 | ||
BN or L245N |
≤0.24 |
≤1.20 |
≤0.025 |
≤0.015 |
≤0.40 |
c |
c |
≤0.04 |
≤0.25 | ||
X42N or L290N |
≤0.24 |
≤1.20 |
≤0.025 |
≤0.015 |
≤0.40 |
≤0.06 |
≤0.05 |
≤0.04 |
≤0.25 | ||
X46N or L320N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.40 |
≤0.07 |
≤0.05 |
≤0.04 |
≤0.25 | ||
X52N or L360N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
≤0.25 | ||
X56N or L390N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
≤0.25 | ||
X60N or L415N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
协商 | ||
备注:c: 除非另有协议,否则V和Nb之和应≤0.06%。 |