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.