|
名 稱 |
數 據 |
|
外徑和壁厚 |
應符合GB／T17395《無縫鋼管》的規定 |
|
長 度 |
1.熱軋(擠壓、擴)鋼管為3-12m
2.冷拔(軋)鋼管為3-10.5m |
|
彎曲度 |
1.壁厚≤15mm時不得大于1.5mm／m
2.壁厚>15mm時不得大于2.0mm／m
3.外徑≥351mm時不得大于3.0mm／m |
|
鋼管種類 |
鋼管尺寸 |
允許偏差 | ||
|
普通級 |
高 級 | |||
|
熱軋(擠壓、擴)管 |
外徑D |
全部 |
±1％(小±0.50) |
|
|
壁厚S |
全部 |
+15% 小+0.45
-12.5% -0.40 |
| |
|
冷拔(軋)管 |
外徑D |
6-10 |
±0.20 |
±0.15 |
|
>10-30 |
±0.40 |
±0.20 | ||
|
>30-50 |
±0.45 |
±0.30 | ||
|
|
|
| ||
|
>50 |
±1％ |
±0.8％ | ||
|
壁厚s |
≤1 |
±0.15 |
±0.12 | |
|
>1-3 |
+15％
-10％ |
+12.5％
-10％ | ||
|
>3 |
+12.5％
-10％ |
±10％ | ||
|
牌 號 |
抗拉強度ób/Mpa |
屈服點ós／MPa |
斷后伸長率δ5(％) | |
|
S≤16 |
S>16 | |||
|
≥ | ||||
|
10 |
335-475 |
205 |
195 |
24 |
|
20 |
410-550 |
245 |
235 |
20 |
|
Q295 |
430-610 |
295 |
285 |
22 |
|
Q345 |
490-665 |
325 |
315 |
21 |
|
流體管 | ||
|
規格 |
規格 |
規格 |
|
12×1 |
89×4.5-8-10-12-14-16-18-20 |
245×25-28-30-34-40 |
|
14×1.5-2.5-3 |
95×4.5-6-8-10-12-14-16-20 |
273×7-9-12-15-18-20-25 |
|
16×1.5-2.5-4 |
102×4.5-5-6-7-8-10-12-14-16-20 |
273×30-35-38-40-45-50 |
|
18×2.3-4-5 |
108×4.5-5-6-7-8-10-12-14-18-20-22 |
299×8-12-16-20-24-28 |
|
20×2.5-3-5 |
114×4.5-5-6-7-8-10-12-14-18-20 |
299×30-32-36-38-40-45 |
|
24×2.5-3-4-5-6 |
121×4.5-5-6-7-8-10-12-14-16-20 |
325×8-12-14-18-38-42 |
|
25×2.5-3-4-5-6 |
127×4.5-5-6-7-8-10-12-14-16-20 |
325×28-32-34-38-42 |
|
28×3-3.5-4-5-6 |
133×4.5-6-8-12-14-16-18-20-25-30 |
351×10-16-20-25-40 |
|
32×3.5-4-5-6-8 |
140×5-6-7-8-9-10-12-14-16-20-22 |
355×6-18-20-25-30-40/52 |
|
34×4-5-6-8 |
146×4.5-6-8-12-14-16-18-20-25-30 |
377×8-12-15-20-24-28 |
|
36×3.5-5-6-8 |
152×4.5-6-8-12-14-16-18-20-25-30 |
377×30-37-40-45-50 |
|
38×4-5-6-7-8-9-10 |
159×4.5-6-10-12-14 |
402×10-15-20-25-30-35 |
|
39×3.5-5-8-10 |
159×16-18-20-22-25-30 |
406×10-20-25-28-35-40 |
|
42×3.5-4-5-6-7-8-9-10 |
168×8-10-12-14-20-25-30-35 |
426×10-12-14-16-20-25-30-35-40 |
|
45×3.5-4-5-6-7-8-9 |
180×8-12-16-25-30 |
450×10-12-14-16-20-25-34-40-50 |
|
48×3.5-4-5-6-7-8-9-10 |
180×32-34-38-40-45-50 |
480×10-12-14-16-18-20-25-30-40 |
|
51×3.5-4-5-6-7-8-9-10 |
194×6-8-12-16-20-25-30-40-45-50 |
500×10-12-14-16-20-25-34-40-50 |
|
56×3.5-4-5-6-7-8-9-10 |
203×6-7-10-15-20-25-30 |
510×10-12-14-16-20-25-34-40-50 |
|
57×3.5-5-6-7-8-9-10-12 |
203×32-36-40-45-50 |
530×10-12-14-16-18-20-30-40 |
|
60×3.5-4.5-5-6-7-8-9-12-14 |
219×6-8-12-16-18-20-25 |
560×10-14-16-20-25-30-40-50-60 |
|
63×3.5-4.5-5-6-7-8-9-10-12-14 |
219×30-40-45-50-55 |
580×10-14-16-20-30-40-50-70 |
|
68×4-4.5-5-6-7-8-9-10-12-14-16 |
219×55-58-60-65-70 |
600×10-14-18-25-20-30-50-60 |
|
70×4-4.5-5-6-7-8-9-10-12-15-16 |
245×8-10-14-17-20-22 |
610×10-14-18-25-20-30-50-60 |
|
73×4-4.5-5-6-7-8-9-10-12-15 |
245×25-28-30-34-40 |
620×14-20-30-35-45-50-60 |
|
76×4-4.5-5-6-7-8-9-10-12-14 |
273×7-9-12-15-18-20-25 |
630×10-20-30-40-55-75 |
|
83×4.5-5-10-12-14-16-18-20 |
|
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