Changzhou Joyruns Steel Tube CO.,LTD
| Payment Terms | TT OT 100% LC AT SIGHT |
| Supply Ability | 1000Ton/month |
| Delivery Time | 30DAYS |
| Packaging Details | Exporting package/wooden box package |
| Standard | DIN17175 |
| Grade | 4130.1020.4140,ST35,ST45,ST52,15CrMo,15CrMoG |
| Type | Seamless cold drawing |
| OD. Range | 6mm – 114.3mm |
| Wall thickness | 1mm-15mm |
| Length | Max length 12M |
| Brand Name | Joyruns |
| Model Number | DIN17175 Alloy steel Tube |
| Certification | ISO9000 |
| Place of Origin | CHANGZHOU, CHINA |
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Product Specification
| Payment Terms | TT OT 100% LC AT SIGHT | Supply Ability | 1000Ton/month |
| Delivery Time | 30DAYS | Packaging Details | Exporting package/wooden box package |
| Standard | DIN17175 | Grade | 4130.1020.4140,ST35,ST45,ST52,15CrMo,15CrMoG |
| Type | Seamless cold drawing | OD. Range | 6mm – 114.3mm |
| Wall thickness | 1mm-15mm | Length | Max length 12M |
| Brand Name | Joyruns | Model Number | DIN17175 Alloy steel Tube |
| Certification | ISO9000 | Place of Origin | CHANGZHOU, CHINA |
| High Light | Sa 192 Boiler Tubes ，DIN17175 Seamless Black Pipe ，15CrMo Seamless Black Pipe | ||
For high-pressure boiler (working pressure 9.8MPa or more generally, the working temperature between 450℃-650℃) of heating surface tubes, header, economizer, superheater, reheater and so on.
Application For high, middle, low-pressure boiler and pressure purpose 15CrMoG alloy tube of the principles of the purified hydrogen at 300-500 ℃, the hydrogen to be purified is passed through one side of the 15CrMoG alloy tube, the hydrogen is adsorbed on 15CrMoG alloy wall, palladium 4d electron shell lacks two electronics, it can with the hydrogen generating unstable chemical bonds (palladium and hydrogen, this reaction are reversible), palladium, hydrogen is ionized proton whose radius is 1.5 × 1015m, while the lattice constant of palladium 3.88x 10-10M (20 ° C time), it can be through 15CrMoG alloy tube role of palladium proton combined with electronic and re-formation of the hydrogen molecules to escape from the other side of the 15CrMoG alloy tube.
In the 15CrMoG the surface of the alloy tube, not dissociated gas impermeable, can therefore be used 15CrMoG alloy tube to obtain high purity hydrogen.
15CrMoG seamless tubes heat treatment: Normalizing and tempering
Chemical composition:
| C | Si | Mn | P | S | Cr | Mo |
| 0.12-0.18 | 0.17-0.37 | 0.40-0.70 | 0.025 max. | 0.015 max. | 0.80-1.10 | 0.40-0.55 |
Mechanical properties:
| Grade | Tensile strength(MPa) | Yield strength(MPa) | Elongation(%) | |
| Vertical | Longitudinal | |||
| 15CrMoG | 440-640 | 295 min. | 21 min. | 19 min. |
Tolerance
| W.T.(S) | Tolerance of W.T. | ||
| <3.5 | +15%(+0.48mm min) | ||
| -10%(+0.32mm min) | |||
| 3.5-20 | +15%,-10% | ||
| >20 | D<219 | ±10% | |
| D≥219 | +12.5%,-10% | ||
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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