| 
                      Mechanical & Structural Welded Round Pipe 
Size: 
 
| Outside Diameter(mm) | 
Thickness(mm) |  
| 0.5 | 
0.6 | 
0.7 | 
0.8 | 
0.9 | 
 1  | 
1.2 | 
1.5 | 
 2  | 
2.5 | 
 3  | 
 4  | 
 5  |  
|   | 
9.5 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
|   | 
12 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 1/2' | 
12.7 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
|   | 
13 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
|   | 
14 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 5/8' | 
15.9 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 3/8' | 
19.1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 7/8' | 
22.2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 1' | 
25.4 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 1-1/8' | 
28.6 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 1-1/4' | 
31.8 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 1-1/2' | 
38.1 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
|   | 
40 | 
  | 
  | 
  | 
  | 
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  | 
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  | 
  | 
  | 
  | 
  | 
  |  
|   | 
45 | 
  | 
  | 
  | 
  | 
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  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 2' | 
50.8 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
|   | 
52 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 2-1/4' | 
57.15 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 2-3/8' | 
60.3 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 2-1/2' | 
63.5 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
|   | 
70 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 3' | 
76.2 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
|   | 
85 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 3-1/2' | 
88.9 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 4' | 
101.6 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 4-1/8' | 
104.78 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 4-1/4' | 
107.95 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 4-1/2' | 
114.3 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 5-1/4' | 
133.35 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 6-1/4' | 
158.75 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |  
| 8-5/8' | 
219.08 | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  |   
Tolerance: 
 
| Standard | 
Diameter(mm) | 
Thickness(mm) | 
Outside diameter Tolerance(mm) | 
Thicknss Tolerance(mm) | 
Length Tolerance(mm) |  
| ASTM A554 | 
≤12.7 | 
0.51~1.24 | 
±0.10 | 
 ±10.00%T 
(±10.00% of nominal 
wall thickness)  | 
 +4.08 
-0  |  
| >12.7~25.4 | 
0.51~1.65 | 
±0.13 |  
| >1.65~3.4 | 
±0.25 |  
| >25.4~38.1 | 
0.64~1.65 | 
±0.20 |  
| >1.65~3.40 | 
±0.25 |  
| >38.1~50.8 | 
0.64~1.24 | 
±0.25 |  
| >1.24~2.11 | 
±0.28 |  
| >50.8~63.5 | 
>2.11~3.78 | 
±0.30 |  
| 0.81~1.65 | 
±0.30 |  
| >1.65~2.77 | 
±0.33 |  
| >63.5~88.9 | 
>2.77~4.19 | 
±0.36 |  
| 0.81~4.19 | 
±0.36 |  
| >88.9~127.0 | 
0.89~4.19 | 
±0.51 |  
| >4.19 | 
±0.64 |  
| >127.0~190.5 | 
1.24~6.35 | 
±0.64 |  
| >6.35 | 
±0.76 |  
 
| GB/T12770 | 
<25 | 
  | 
±0.15 | 
 冷轧Clod Rolled 
≤0.50 ±0.05 
>0.50~1.00 ±0.11 
>1.00~2.00 ±0.17 
>2.00~3.00 ±7.00%S 
>3.00 ±10.0%S 
热轧Hot Rolled 
±10.00%S  | 
 +20.00 
-0  |  
| ≥25~40 | 
±0.18 |  
| ≥40~50 | 
±0.20 |  
| ≥50~60 | 
±0.23 |  
| ≥60~70 | 
±0.30 |  
| ≥70~80 | 
±0.30 |  
| ≥80~90 | 
±0.30 |  
| ≥90~100 | 
±0.40 |  
| ≥100~200 | 
±0.50%D |  
| ≥200 | 
协议 To BeAgreed |  
| JIS G3446 | 
<50 | 
  | 
±0.25 | 
<3.00 ±0.30 | 
 +50 
-0  |  
| ≥50 | 
  | 
±0.5% | 
≥3.00 ±10.00% |   
  
Surface: 180#;280#;400#;600# 
Standard:ASTM A554;DIN/EN10296-2/JIS G344;GB/T12770 
Material:201,202,304/304L,316L,321, 409L,410,420,430, UNS31803,USNS32205/2205,UNS32750/2507 etc. 
  
  
					 
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