Fluid Pipe
GB/T8163（10、20、35、45、Q235、Q275、Q345） ASTM/ASME A53/SA53（A、B） ASTM/ASME A106/SA106（A、B、C） JIS G3454（STPG370、STPG410）
● Standard
GB/T8163-2009 ASTM A53M ASTM A106 Main steel grades: 10, 20, B grade
● Uses
For oil and gas transmission and other fluid transfer
● Size deviation
|
Steel Tube Types |
Tube size mm | Allowable deviation | ||
|
Common Grade |
High Grade |
|||
| Hot rolled tube | Outer diameter D | All | ± 1% (minimum is ± 0.50mm) | — |
| Wall thickness S | All | +15%-12.5% (minimum +0.45/ -0.40 mm) | — | |
| Cold-drawn tube | Outer diameter D | 6 ~ 10 | ± 0.20 mm | ± 0.15 mm |
| ＞ 10 ~ 30 | ± 0.40 mm | ± 0.20 mm | ||
| ＞ 30 ~ 50 | ± 0.45 mm | ± 0.30 mm | ||
| ＞ 50 | ± 1% | ± 0.8% | ||
| Wall thickness S | ≤ 1 | ± 0.15 mm | ± 0.12 mm | |
| ＞ 1 ~ 3 | +15%-10% | +12.5%-10% | ||
| ＞ 3 | +12.5%-10% | ± 10% | ||
Note: Can also be supplied with deviations according to ASTM standards
● Chemical composition, mechanical properties
| Standard | Steel grade | Chemical composition (%) | ||||||
| C | Mn | Si | Cr | Ni | Cu | P.S | ||
| GB/T8163 | 10 | 0.07～0.13 | 0.35～0.65 | 0.17～0.37 | ≤ 0.15 | ≤ 0.30 | ≤ 0.25 | ≤ 0.030 |
| 20 | 0.17～0.23 | 0.35～0.65 | 0.17～0.37 | ≤ 0.25 | ≤ 0.25 | ≤ 0.25 | ≤ 0.030 | |
| Q345 | 0.12～0.20 | 1.20～1.60 | 0.20～0.55 | ≤ 0.030 | ||||
|
Mechanical properties |
Tensile strength (MPa) | Yield Strength (MPa) | Elongation (%) | |||||
| 10 | 335～475 | ≥ 205 | ≥ 24 | |||||
| 20 | 410～550 | ≥ 245 | ≥ 20 | |||||
| Q345 | 490～665 | ≥ 325 | ≥ 21 | |||||
Product Consultation
WRITE A MESSAGE TO US
Contact Us
Changjiang Steel Pipe will look forward to working with friends from all walks of life with better quality products and more considerate services.
Create brilliance together!
Whatsapp
E-mail
Tel
Copyright © 2021 Jiangyin City Changjiang Steel Pipe Co., Ltd., . All rights reserved. 苏ICP备05023228号 Powered by 300.cn
