JIS G3456 Seamless tubes
JIS G3456 Carbon steel pipes, Seamless pipes for high temperature service at a temperature over 350 Degrees celsius.
Standard:
- JIS G 3456:2010
- JIS, Japanese Industrial Standards specifies the standards used for industrial activities in Japan.
Size range of JIS G3456(mm):
- Outer Dimensions: 19.05mm- 114.3mm
- Wall Thickness:2.0mm -14 mm
- Length: max 16000mm
Application:
- Carbon steel pipes for pressure service
- High pressure service and high temperature service ata temperature over 350Degrees celsius
Packing:
- Be packed inBare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements.
- Surface: Varnish coating
- Ends: Beveled or Plain ends with Plastic caps
- Painting: as requested.
Inspection & Certification:
- Certification: ISO, API, ASTM, DIN etc.
- Mill Test Certificate: EN10204/3.1B
- Third party inspection: SGS, BV, Lloyds etc.
The main products of steel / steel grade:
- JIS G3456 STPT370
- JIS G3456 STPT410
- JIS G3456 STPT480
Chemical Compositions(%) of JIS G3456
| Standard/ Grade | C | Si | Mn | P | S |
| JIS G3456 STPT370 | ?0.25 | 0.10-0.35 | 0.30-0.90 | ?0.035 | ?0.035 |
| JIS G3456 STPT410 | ?0.30 | 0.10-0.35 | 0.30-1.00 | ?0.035 | ?0.035 |
| JIS G3456 STPT480 | ?0.33 | 0.10-0.35 | 0.30-1.00 | ?0.035 | ?0.035 |
Mechanical Properties of JIS G3456
| Standard/ Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| JIS G3456 STPT370 | ?216 | ?370 | ?30 |
| JIS G3456 STPT410 | ?245 | ?410 | ?25 |
| JIS G3456 STPT480 | ?275 | ?480 | ?25 |
Tolerance on Outside Diameter and Wall Thickness in JIS G3456
| APPLICATION | TOLERANCE ON OUTSIDE DIAMETER | TOLERANCE ON WALL THICKNESS | ||
|---|---|---|---|---|
| Hot Rolled Seamless Pipes |
<=50mm | 0.5mm | <=4mm | 0.5mm |
| >50-160mm | 1% | |||
| >160-200mm | 1.6mm | >4mm | 12.5% | |
| >200mm | 0.8% | |||
| More that 350mm, the Tolerance is 0.5% |
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| Cold Drawn Seamless Pipes and Electric Resistant Welded Pipes |
<=40mm | 0.3mm | <=2mm | 0.2mm |
| >40mm | 0.8% | >2mm | 10% | |
| More than 350 mm the Tolerance is 0.5% |
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