GB/T 14976 — Seamless stainless steel pipes for fluid transport
GB/T 14976 covers seamless stainless steel pipes for fluid transport, in grades designated per GB/T 20878 (e.g. S30408, S30403, S31603, S32168) — comparable to ASTM A312.
GB/T 14976 at a glance
| Standard | GB/T 14976 |
|---|---|
| Issued by | China (SAC) |
| Product form | Pipe |
| Grades on this site | 13 |
GB/T 14976 grades and their ASTM equivalents
| GB/T designation | Nearest ASTM / ASME grades | UNS | W.Nr |
|---|---|---|---|
| S30408 (06Cr19Ni10) | ASTM A182 F304, ASTM A312 TP304, ASTM A403 WP304, ASTM A193 B8 Cl.1, ASTM A194 8 | S30400 | 1.4301 |
| S30403 (022Cr19Ni10) | ASTM A182 F304L, ASTM A312 TP304L, ASTM A403 WP304L | S30403 | 1.4307 / 1.4306 |
| S30409 (07Cr19Ni10) | ASTM A182 F304H, ASTM A312 TP304H | S30409 | 1.4948 |
| S31608 (06Cr17Ni12Mo2) | ASTM A182 F316, ASTM A312 TP316, ASTM A403 WP316, ASTM A193 B8M Cl.1, ASTM A194 8M | S31600 | 1.4401 |
| S31603 (022Cr17Ni12Mo2) | ASTM A182 F316L, ASTM A312 TP316L, ASTM A403 WP316L | S31603 | 1.4404 |
| S31609 (07Cr17Ni12Mo2) | ASTM A182 F316H, ASTM A312 TP316H | S31609 | 1.4919 |
| S31668 (06Cr17Ni12Mo2Ti) | ASTM A182 F316Ti | S31635 | 1.4571 |
| S31703 (022Cr19Ni13Mo3) | ASTM A182 F317L, ASTM A312 TP317L, ASTM A403 WP317L | S31703 | 1.4438 |
| S32168 (06Cr18Ni11Ti) | ASTM A182 F321, ASTM A312 TP321, ASTM A403 WP321 | S32100 | 1.4541 |
| S32169 (07Cr19Ni11Ti) | ASTM A182 F321H | S32109 | 1.4878 |
| S34778 (06Cr18Ni11Nb) | ASTM A182 F347, ASTM A312 TP347, ASTM A403 WP347 | S34700 | 1.4550 |
| S34779 (07Cr18Ni11Nb) | ASTM A182 F347H | S34709 | 1.4912 |
| S31008 (06Cr25Ni20) | ASTM A182 F310, ASTM A312 TP310S, ASTM A403 WP310S | S31000 | 1.4845 |
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 14976: common questions
What is the ASTM equivalent of GB/T 14976 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 14976?
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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