執行標準：
API SPEC 5L——美國石油學會標準
GB/T9711.2——中國國家標準
用途
管線用無縫鋼管用于石油、天然氣工業中的氧、水、油輸送管
主要牌號
B、X42、X52、X60、X65、X70
| 鋼級(GB/T9711.1) |
L175(Ⅰ、Ⅱ類) |
L210 |
L245 |
L290 |
L320 |
L360 |
L390 |
L415 |
L450 |
L485 |
L555 |
| 鋼級(ANSI/API Spec 5L ) |
A25(Ⅰ、Ⅱ類) |
A |
B |
X42 |
X46 |
X52 |
X56 |
X60 |
X65 |
X70 |
X80 |
| 規定總伸長應力Rt0.5(min)Mpa |
175 |
210 |
245 |
290 |
320 |
360 |
390 |
415 |
450 |
485 |
555 |
| 抗拉強度(min)Mpa |
315 |
335 |
415 |
415 |
435 |
460 |
490 |
520 |
535 |
570 |
625 |
化學成分
| 標準 |
牌號 |
化學成分(％) |
CEV(％) |
| C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
| API SPEC 5L GB/T9711.2 |
B |
≤0.16 |
≤0.40 |
≤1.10 |
≤0.020 |
≤0.010 |
－ |
－ |
－ |
≤0.42 |
| X42 |
≤0.17 |
≤0.40 |
≤1.20 |
≤0.020 |
≤0.010 |
≤0.05 |
≤0.05 |
≤0.04 |
≤0.42 |
| X52 |
≤0.20 |
≤0.45 |
≤1.60 |
≤0.020 |
≤0.010 |
≤0.10 |
≤0.05 |
≤0.04 |
≤0.45 |
| X60 |
≤0.21 |
≤0.45 |
≤1.60 |
≤0.020 |
≤0.010 |
≤0.15 |
≤0.05 |
≤0.04 |
協議 |
| X65 |
≤0.16 |
≤0.45 |
≤1.60 |
≤0.020 |
≤0.010 |
≤0.06 |
≤0.05 |
≤0.06 |
≤0.45 |
| X70 |
≤0.16 |
≤0.45 |
≤1.70 |
≤0.020 |
≤0.010 |
≤0.06 |
≤0.05 |
≤0.06 |
≤0.45 |
API SPEC 5L管線管產品規格表
名義
尺寸 |
外徑
D |
壁厚
T |
計算重量 |
| 平端 |
帶螺紋和接箍 |
| in |
mm |
in |
mm |
lb/ft |
kg/m |
lb |
kg |
| 2-3/8 |
2.375 |
60.3 |
0.154 |
3.9 |
3.66 |
5.42 |
1.20 |
0.54 |
| 2.375 |
60.3 |
0.218 |
5.5 |
5.03 |
7.43 |
1.09 |
0.50 |
| 2-7/8 |
2.875 |
73.0 |
0.203 |
5.2 |
5.80 |
8.69 |
1.80 |
0.82 |
| 2.875 |
73.0 |
0.276 |
7.0 |
7.67 |
11.39 |
1.57 |
0.71 |
| 3-1/2 |
3.500 |
88.9 |
0.216 |
5.5 |
7.58 |
11.31 |
1.80 |
0.82 |
| 3.500 |
88.9 |
0.300 |
7.6 |
10.26 |
15.24 |
1.76 |
0.80 |
| 4 |
4.000 |
101.6 |
0.226 |
5.7 |
9.12 |
13.48 |
3.20 |
1.45 |
| 4.000 |
101.6 |
0.318 |
8.1 |
12.52 |
18.68 |
3.00 |
1.36 |
| 4-1/2 |
4.500 |
114.3 |
0.237 |
6.0 |
10.80 |
16.02 |
4.40 |
2.00 |
| 4.500 |
114.3 |
0.337 |
8.6 |
15.00 |
22.42 |
3.99 |
1.81 |
| 5-9/16 |
5.563 |
141.3 |
0.258 |
6.6 |
14.63 |
21.92 |
5.60 |
2.54 |
| 5.563 |
141.3 |
0.375 |
9.5 |
20.80 |
30.88 |
4.94 |
2.44 |
| 6-5/8 |
6.625 |
168.3 |
0.280 |
7.1 |
18.99 |
28.22 |
7.20 |
3.27 |
| 6.625 |
168.3 |
0.432 |
11.0 |
28.60 |
42.67 |
5.65 |
2.56 |
| 8-5/8 |
8.625 |
219.1 |
0.277 |
7.0 |
24.72 |
36.61 |
14.80 |
6.72 |
| 8.625 |
219.1 |
0.322 |
8.2 |
28.58 |
42.65 |
14.00 |
6.36 |
| 8.625 |
219.1 |
0.500 |
12.7 |
43.43 |
64.64 |
11.74 |
5.20 |
| 10-3/4 |
10.750 |
273.1 |
0.279 |
7.1 |
31.23 |
46.57 |
20.00 |
9.08 |
| 10.750 |
273.1 |
0.307 |
7.8 |
34.27 |
51.03 |
19.20 |
8.72 |
| 10.750 |
273.1 |
0.365 |
9.3 |
40.52 |
60.50 |
17.40 |
7.90 |
| 10.750 |
273.1 |
0.500 |
12.7 |
54.79 |
81.55 |
15.32 |
6.95 |
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