JIS G3454 STPG370/410 Carbon Seamless Boiler Tubes 350°C Pressure Rating
Price:
Negotiable
MOQ:
5 tons per size
Delivery Time:
30DAYS
Brand:
Joyruns
Product Description
JIS G3454 Carbon Steel Pressure Tubes Overview
JIS G3454 carbon steel pipes are engineered for pressure applications with maximum operating temperatures up to 350°C. These tubes are available in both seamless and electric-resistance welded configurations, with options for hot-finished or cold-finished states based on specific application requirements.
- Maximum temperature rating: 350°C
- Available in seamless or electric-resistance welded construction
- Hot-finished or cold-finished options available
- For higher pressure requirements, consider JIS G3455 standard tubes
Chemical Composition Specifications
| Standard | Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) |
|---|---|---|---|---|---|---|
| JIS G3454 | STPG 370 | ≤0.25 | ≤0.35 | 0.30-0.90 | ≤0.040 | ≤0.040 |
| STPG 410 | ≤0.30 | ≤0.35 | 0.30-1.00 | ≤0.040 | ≤0.040 | |
| JIS G3455 | STS 370 | ≤0.25 | 0.10-0.35 | 0.30-1.10 | ≤0.035 | ≤0.035 |
| STS 410 | ≤0.30 | 0.10-0.35 | 0.30-1.40 | ≤0.035 | ≤0.035 | |
| STS 480 | ≤0.33 | 0.10-0.35 | 0.30-1.50 | ≤0.035 | ≤0.035 | |
| JIS G3456 | STPT 370 | ≤0.25 | 0.10-0.35 | 0.30-0.90 | ≤0.035 | ≤0.035 |
| STPT 410 | ≤0.30 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 | |
| STPT 480 | ≤0.33 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 |
Mechanical Properties
| Standard | Grade | Tensile Strength (MPa) | Yield Strength (MPa) |
|---|---|---|---|
| JIS G3454 | STPG 370 | ≥215 | ≥370 |
| STPG 410 | ≥245 | ≥410 | |
| JIS G3455 | STS 370 | ≥215 | ≥370 |
| STS 410 | ≥245 | ≥410 | |
| STS 480 | ≥275 | ≥480 | |
| JIS G3456 | STPT 370 | ≥215 | ≥370 |
| STPT 410 | ≥245 | ≥410 | |
| STPT 480 | ≥275 | ≥480 |
Dimensional Tolerances
Hot-Finished Seamless Steel Pipe
| Division | Outside Diameter Tolerances | Wall Thickness Tolerances |
|---|---|---|
| 40A or under | 0.5mm | Under 4mm |
| 50A to 125A | 1% | 4mm or over: +15% -12.5% |
| 150A | 1.6mm | |
| 200A or over | 0.8% |
Cold-Finished & Electric Resistance Welded Pipe
| Division | Outside Diameter Tolerances | Wall Thickness Tolerances |
|---|---|---|
| 25A or under | 0.3mm | Under 3mm: 0.3mm 3mm or over: 10% |
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Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee