JIS B2311 SGP 45° and 90° SGP elbows JIS B2311 PIPE FITTINGS
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JIS B2311 SGP Butt weld 45° elbow / 90° elbow /180° bend / cap/Reducer/Tee.
JIS B2311 is a Japanese Industrial Standard (JIS) specification,JIS B231 covers steel butt-welding pipe fittings for ordinary use.
SGP: SGP stands for “Standard for General Piping.” It is a classification within the JIS standards system that pertains to general-purpose steel pipes used in ordinary piping applications.
Materials : The fittings to this standard are made from materials in accordance with JIS G3452.
Pressure Ratings : The fittings are free from leakage at hydrostatic pressure up to a maximum of 2.5 MPa.
Welding End Preparations : Bevel dimensions and tolerances conform to those shown in the diagram. Fittings with a basic thickness below 4 mm have plain unbeveled ends.
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
| Steel Grade | Chemical Composition % | Tensile | Yield | Elongation % (1) | |||
| C | P | S | Strength | Point | Longitudinal | Transverse | |
| Max | N/mm2 Min | Min | Min | ||||
| SGP | – | 0.040 | 0.040 | 290 | – | 30 (2) | 25 (2) |
| PY400 | 0.25 | 0.040 | 0.040 | 400 | 255 | – | 18 |
NOTES:
(1) Values specified are for wall thickness 8mm and over. For each 1mm decrease in wall thickness below 8mm, a deduction of 1.5% for both longitudinal and transverse from the values shown above is permitted.
(2) Value not applicable to NPS below 32A.
JIS B2311 SGP 45° elbow / JIS B2311 SGP90° elbow /JIS B2311 SGP180° bend / JIS B2311 SGP cap/JIS B2311 SGP Reducer/JIS B2311 SGPTee.
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