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|
外 径 |
高精度D1 |
较高精度D2 |
普通精度D3 |
|
5～20 |
±0.10 |
±0.20 |
±0.30 |
|
21～30 |
±0.10 |
±0.25 |
±0.50 |
|
31～40 |
±0.15 |
±0.30 |
±0.50 |
|
41～50 |
±0.20 |
士0.35 |
±0.50 |
|
51～323.9 |
±0.5％ |
±0.8％ |
±1.0％ |
|
>323.9 |
±0.7％ |
±0.8％ |
±1.0％ |
|
壁厚 |
高精度S1 |
较高精度S2 |
普通精度S3 |
|
0.06 |
+0.03
-0.05 |
±0.06 |
±0.10 |
|
0.60 |
+0.04
-0.07 |
±0.07 | |
|
0.80 |
±0.08 | ||
|
1.0 |
+0.05
-0.09 |
±0.09 |
±10％ |
|
1.2 |
±0.11 | ||
|
1.4 |
+0.06
-0.11 |
±0.12 | |
|
1.5 |
±0.13 | ||
|
1.6 |
+0.07
-0.13 |
±0.14 | |
|
1.8 | |||
|
2.0 |
±0.15 | ||
|
2.2 |
±0.16 | ||
|
2.5 |
+0.08
-0.16 |
±0.17 | |
|
2.8 |
±0.18 | ||
|
3.0 | |||
|
3.2 |
+0.10
-0.20 |
±0.20 | |
|
3.5 | |||
|
3.8 |
±0.22 | ||
|
4.0 | |||
|
4.2～5.5 |
|
±8％ | |
|
>5.5 |
|
±10％ |
±15％ |
|
牌 号 |
软状态钢管R |
低硬状态钢管DY | ||
|
抗拉强度ób／MPa |
伸长率δ5(％) |
抗拉强度ób／MPa |
伸长率δ5(％) | |
|
≥ | ||||
|
08F、08、10F、10 |
315 |
22 |
375 |
13 |
|
15F、15 |
355 |
20 |
400 |
11 |
|
20 |
390 |
19 |
440 |
9 |
|
Q195 |
315 |
22 |
335 |
14 |
|
Q1215-A、B |
335 |
22 |
335 |
13 |
|
Q235-A、B |
375 |
20 |
390 |
9 |