高頻電阻直縫焊管（ERW）外徑、壁厚公差
發(fā)布時(shí)間：2011.06.12 新聞來(lái)源：直縫鋼管_大口徑直縫鋼管_厚壁鋼管_高頻-河北美德鋼管制造有限公司 瀏覽次數(shù)：
| 高頻電阻直縫焊管（ERW）外徑、壁厚公差 |
|
|
標(biāo)準(zhǔn) |
外徑公差mm |
橢園度mm |
直度公差mm |
|
外徑區(qū)間 |
公差 |
|
|
219.1-273.1 |
+1.6/-0.4 |
/ |
≤0.2%·L |
|
273.2-320 |
+0.75%·D/-0.8 |
/ |
≤0.2%·L |
|
320.1-508 |
+2.4/-0.8 |
/ |
≤0.2%·L |
|
508.1-610 |
+2.4/-0.8 |
2.0%·D |
≤0.2%·L |
|
GB/ T9711.1 |
219.1-273.1 |
+1.59/-0.4 |
/ |
≤0.2%·L |
|
323.9-508 |
+2.38/-0.79 |
/ |
≤0.2%·L |
|
509-610 |
+2.38/-0.79 |
2.0%·D |
≤0.2%·L |
|
GB/ T9711.2 |
219.1-320 |
±0.5%·D |
1.5%·D |
≤0.2%·L |
|
321-610 |
±1.6 |
1.5%·D |
≤0.2%·L |
|
|
219.08-610.0 |
+1%/-0.5% |
/ |
≤0.2%·L |
|
ASTM A53 M |
219-610 |
±1%·D |
/ |
≤0.2%·L |
|
|
219-508 |
+2.4/-0.8 |
±0.75%·D |
≤0.2%·L |
|
508.1-610 |
+3.0/-0.8 |
±0.75%·D |
≤0.2%·L |
|
GB/T 6728 |
219.1-610 |
±1%·D |
/ |
≤0.2%·L |
|
SY/T 5768 |
219-355.5 |
±1%·D |
/ |
0.15%·L |
|
355.6-610 |
±0.5%·D |
/ |
0.15%·L |
|
GB/T13793 |
|
高精度 |
較高精度 |
普通精度 |
/ |
≤1.5mm/m |
|
219-323.9 |
±0.5%·D |
±0.8%·D |
±1%·D |
|
324.0-610 |
±0.7%·D |
±0.8%·D |
±1%·D |
|
標(biāo)準(zhǔn) |
鋼級(jí) |
外徑區(qū)間 |
壁厚區(qū)間 |
公差 |
重量公差 |
|
|
全部 |
219.1-507 |
4-20 |
+15%/-12.5% |
+10%/-3.5%
（單根） |
|
B |
508-610 |
4-20 |
+17.5%/-12.5% |
|
×42及以上 |
508-610 |
4-20 |
+19.5%/-8% |
|
GB/T9711.1 |
全部 |
219.1-507.9 |
4-20 |
+15%/-12.5% |
（單根）
+10%/-3.5% |
|
L245 |
508-610 |
4-20 |
+17.5%/-10% |
|
L290-L555 |
508-610 |
4-20 |
+19.5%/-8% |
|
GB/T9711.2 |
全部 |
219.1-610 |
4-10 |
+1.0mm/-0.5mm |
（單根）
+10%/-3.5% |
|
219.1-610 |
10.1-20 |
+10%/-5% |
|
|
219.08-610.0 |
-12.5% |
+6.5%/-3.5% |
|
ASTM A53M |
|
4-20 |
-12.5% |
±10% |
|
|
|
4-20 |
±12.5% |
/ |
|
GB/T6728 |
|
4-10 |
±10% |
+10%/-6% |
|
10.1-20 |
±8% |
|
SY/T5768 |
|
4-11.9 |
±10% |
/ |
|
12-20 |
+10%/-1.2mm |
|
GB/T13793 |
|
|
較高 |
普通 |
/ |
|
4.2-5.5 |
±8% |
±10% |
|
5.6-20 |
±10% |
±15% |
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