After-sales Service: | Change/Return |
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Warranty: | 10 Year, 10 Year |
Type: | Equal, Reducing |
Connection: | Welding, Welding |
Material: | Carbon Steel, Carbon Steel |
Shape: | Equal Tee, Reducing Tee |
Samples: |
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Customization: |
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JIS B2311/B2312 SGP Equal and Reducing Tee
JIS B2311-2009 steel butt welding pipe fittings for ordinary use.
This standard specifies the steel pipe fittings attached by butt welding to ordinary pipings 1)carrying steam,water,oil,gas,air etc. of comparatively low working pressure (hereafter referred to as "pipe fittings").
Annex a specifies the pipe fittings of special shapes not given in the main body of this standard,which may be designated upon agreement between the purchaser and the manufacturer,and Annex B shows matters related to the marking and report of the pipe fittings with special necks for informative reference.
Note 1) Pipings using carbon steel pipes for ordinary piping specified in JIS G 3452 and pipings using arc welded carbon steel pipes for piping specified in JIS G 3457.
JIS B2311 Steel Butt-Welding Pipe Fittings for Ordinary Use
JIS G3452 Carbon Steel Pipes for Ordinary Piping
JIS G3457 Arc Welded Carbon Steel Pipes
JIS B2312 PG370 Butt weld 45° elbow / 90° elbow /180° bend / cap/Reducer/Tee.
JIS B2312 PG 370 Pipe fittings is made of JIS G3454 STPG 370 Pipes,
Grade | Chemical Composition% | ||||
---|---|---|---|---|---|
C | Si | Mn | P | S | |
STPG 370 | 0.25 max | 0.35 max | 0.30~0.90 | 0.040 max | 0.040 max |
STPG 410 | 0.30 max | 0.35 max | 0.30~1.00 | 0.040 max | 0.040 max |
Schedule No. | 10 | 20 | 30 | 40 | 60 | 80 |
---|---|---|---|---|---|---|
Test pressure | 20 {20} | 35 {34} | 50 {49} | 60 {59} | 90 {88} | 120 {118} |
Mechanical Property of JIS G3454 PIPES
Letter symbol of grade | Tensile strength | Yield point or proof stress | Elongation % | |||
---|---|---|---|---|---|---|
kgf/mm2 {N/mm2} | kgf/mm2 {N/mm2} | No.11 and No.12 test pieces | No. 5 test pieces | No. 4 test piece | ||
Longitudinal | Transverse | Longitudinal | Transverse | |||
STPG 370 | 38 {373}min | 22{216} min | 30 min | 25 min | 23 min | 28 min |
STPG 410 | 42{412}min | 25{245} min | 25 min | 20 min | 19 min | 24 min |
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