Changzhou Joyruns Steel Tube CO.,LTD
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Cold drawing Seamless Boiler Tubes JIS3454 / JIS3455 / JIS3456 / JIS3461
JIS G3461 Carbon Steel Tubes is used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes and air preheater tubes of the boiler, and heat exchanger tubes, condenser tubes and catalyzer tubes used in chemical and petroleum industries.
Specifications:
Grade and Chemical Composition ( ％ ) and
| 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 |
| STS410 | ≤0.30 | 0.10-0.35 | 0.30-1.40 | ≤0.035 | ≤0.035 | |
| STS480 | ≤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 property
| Standard | Grade | Tensile strength (Mpa) | Yield strength (Mpa) |
| JIS G3454 | STPG 370 | ≥215 | ≥370 |
| STPG 410 | ≥245 | ≥410 | |
| JIS G 3455 | STS 370 | ≥215 | ≥370 |
| STS 410 | ≥245 | ≥410 | |
| STS 480 | ≥275 | ≥480 | |
| JIS G 3456 | STPT 370 | ≥215 | ≥370 |
| STPT 410 | ≥245 | ≥410 | |
| STPT 480 | ≥275 | ≥480 |
