Changzhou Joyruns Steel Tube CO.,LTD
| Payment Terms | TT OR LC |
| Supply Ability | 5000T PER MONTH |
| Delivery Time | 30DAYS |
| Packaging Details | Plastic packing, oiling, wooden box |
| OD. Range | 6mm – 137mm |
| Wall thickness | 1mm-20mm |
| Length | Max length 12M |
| Type | Seamless boiler tube |
| Technique | cold drawing, cold rolled |
| Standard | JIS3454/JIS3455/JIS3456/JIS3461 |
| Brand Name | Joyruns |
| Model Number | 6mm --137mm |
| Certification | ISO9000 |
| Place of Origin | CHANGZHOU, CHINA |
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Product Specification
| Payment Terms | TT OR LC | Supply Ability | 5000T PER MONTH |
| Delivery Time | 30DAYS | Packaging Details | Plastic packing, oiling, wooden box |
| OD. Range | 6mm – 137mm | Wall thickness | 1mm-20mm |
| Length | Max length 12M | Type | Seamless boiler tube |
| Technique | cold drawing, cold rolled | Standard | JIS3454/JIS3455/JIS3456/JIS3461 |
| Brand Name | Joyruns | Model Number | 6mm --137mm |
| Certification | ISO9000 | Place of Origin | CHANGZHOU, CHINA |
| High Light | JIS 3454 Seamless Boiler Tubes ，STPG370 Seamless Boiler Tubes ，STPG370 410 | ||
JIS3454 / JIS3455 / JIS3456 / JIS3461
JIS G3454 carbon steel pipes are used for pressure conditions at a limited maximum temperature of 350℃. If you require higher pressure pipes shall consider JIS G 3455 standard. JIS G3454 Steel pipe can be manufactured into seamless steel pipe or electric-resistance welded steel tubes, the purchaser may designate the quality requirements on hot finished or cold finished state.
Specifications:
Grade and Chemical Composition ( ％ )
| 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 |
Tolerances on Outside Diameter and Wall Thickness:
| Division | Tolerances on outside diameter | Tolerances on wall thickness |
| Hot-finished seamless steel pipe | 40 A or under 0.5mm | Under 4mm |
| 50A or over up to and incl. 125 A 1% | +0.6mm
-0.5mm
4mm or over
+15%
-12.5% | |
| 150A 1.6mm | ||
| 200A or over 0.8% For the pipe of nominal size 350 A or over, the tolerances on outside diameter may be determined by the measurement of the length of circumference. In this case, the tolerances shall be 0.5%. | ||
| Cold-finished seamless steel pipe and electric resistance welded steel pipe | 25 A or under 0.3mm | Under 3mm
3mm or over |
Company Details
Business Type:
Manufacturer,Agent,Exporter,Seller
Year Established:
2000
Total Annual:
10000000-20000000
Employee Number:
150~300
Ecer Certification：
Verified Supplier
Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur... Changzhou Joyruns Steel Tube Co., Ltd specializes in the export of steel pipes for 20 years. We have been a leading supplier of high-quality steel pipes of carbon, alloy, nickel material & copper, which is one of the most professional Bundy and stainless steel pipe manufactur...
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