GB/T 8163 — Seamless steel tubes for liquid service
GB/T 8163 covers seamless carbon steel pipes for fluid transport, typically in grade 20 and Q345 — comparable to ASTM A106 and A53.
GB/T 8163 at a glance
| Standard | GB/T 8163 |
|---|---|
| Issued by | China (SAC) |
| Product form | Pipe |
| Grades on this site | 1 |
GB/T 8163 grades and their ASTM equivalents
| GB/T designation | Nearest ASTM / ASME grades | UNS | W.Nr |
|---|---|---|---|
| 20 (GB/T 8163, GB/T 5310 20G) | ASTM A106 Gr.B, ASTM A53 Gr.B (seamless) | K03006 | 1.0345 |
Equivalents are the nearest commonly cited grades. Chemistry, mechanical properties and testing differ between standards — compare them before substituting one for another.
FAQ
GB/T 8163: common questions
What is the ASTM equivalent of GB/T 8163 20?
The nearest ASTM grades are ASTM A106 Gr.B, ASTM A53 Gr.B (seamless).
Does Teshi Group supply material to GB/T 8163?
Teshi Group manufactures flanges, fittings, fasteners and valves, and supplies pipes and plates, to ASTM / ASME specifications and to equivalent EN, JIS, GB and IS standards on request, with EN 10204 3.1 certificates. Send your requirement to info@teshigroup.com.
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