GB/T 20878 — Stainless and heat-resisting steels — designation and chemical composition
GB/T 20878 defines the Chinese stainless steel grade designations — numeric codes such as S30408 (06Cr19Ni10, 304), S31603 (022Cr17Ni12Mo2, 316L) and S22053 (022Cr23Ni5Mo3N, 2205) — and their chemistry.
GB/T 20878 at a glance
| Standard | GB/T 20878 |
|---|---|
| Issued by | China (SAC) |
| Product form | Designation system |
| Grades on this site | 19 |
GB/T 20878 grades and their ASTM equivalents
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 20878: common questions
What is the ASTM equivalent of GB/T 20878 S30408?
The nearest ASTM grades are ASTM A182 F304, ASTM A312 TP304, ASTM A403 WP304, ASTM A193 B8 Cl.1.
Does Teshi Group supply material to GB/T 20878?
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.
Other designation system standards
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