JIS B2311 — Steel butt-welding pipe fittings for ordinary use
JIS B2311 covers carbon steel butt-weld fittings for ordinary use (material symbol FSGP/PG370), with dimensions comparable to ASME B16.9.
JIS B2311 at a glance
| Standard | JIS B2311 |
|---|---|
| Issued by | Japanese Industrial Standards |
| Product form | Butt-weld fittings |
| Grades on this site | 2 |
JIS B2311 grades and their ASTM equivalents
| JIS designation | Nearest ASTM / ASME grades | UNS | W.Nr |
|---|---|---|---|
| PG370 (JIS B2311) / PT370 (JIS B2312) | ASTM A234 WPB | K03006 | 1.0345 / 1.0425 |
| PL380 (JIS B2311) | ASTM A420 WPL6 | K03006 | 1.0453 |
Equivalents are the nearest commonly cited grades. Chemistry, mechanical properties and testing differ between standards — compare them before substituting one for another.
FAQ
JIS B2311: common questions
What is the ASTM equivalent of JIS B2311 PG370?
The nearest ASTM grades are ASTM A234 WPB.
Does Teshi Group supply material to JIS B2311?
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 butt-weld fittings standards
Ready to build to spec?
Share your drawing, bill of materials or technical requirements with the Teshi team.