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JIS G3455 Carbon Steel Pipe
This Japanese industrial standard specifies the carbon steel pipe ,hereinafter referred to as the "pipes",used for high pressure service at an approximate maximum temperature of 350℃
Description
JIS G3455 carbon steel pipe used for high pressure service
Chemical composition
Unit：%
Letter symbol of grade | C | Si | Mn | P | S |
| STS 370 | 0.25 max | 0.10to0.35 | 0.30to1.10 | 0.035 max | 0.035 max |
| STS 410 | 0.30 max | 0.10to0.35 | 0.30to1.40 | 0.035 max | 0.035 max |
| STS 480 | 0.33 max | 0.10to0.35 | 0.30to1.50 | 0.035 max | 0.035 max |
Mechanical properties
| Letter symbol of grade | Tensile strength N/mm² | Yield point or proof stress N/mm² |
| STS 370 | 370 min | 215 min |
| STS 410 | 410 min | 245 min |
| STS 480 | 480 min | 275 min |
HydrostaticTest Pressure
Unit：MPA
Schedule number Sch | 40 | 60 | 80 | 100 | 120 | 140 | 160 |
Hydrostatic test pressure | 6.0 | 9.0 | 12 | 15 | 18 | 20 | 20 |
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