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 | DIN 2391 / EN 10305-1 / EN10305-4 |
| OD. Range | 3.16mm – 114.3mm |
| Wall thickness | 0.5mm-15mm |
| Length | Max length 12M |
| Grade | ST35, ST37.4, ST37, ST45, ST52, ST52.4, E235, E255, E355. |
| Delivery condition | NBK, bright anaerobic normalizing. |
| Brand Name | Joyruns |
| Model Number | EN10305-1 Mechanical 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 | DIN 2391 / EN 10305-1 / EN10305-4 | OD. Range | 3.16mm – 114.3mm |
| Wall thickness | 0.5mm-15mm | Length | Max length 12M |
| Grade | ST35, ST37.4, ST37, ST45, ST52, ST52.4, E235, E255, E355. | Delivery condition | NBK, bright anaerobic normalizing. |
| Brand Name | Joyruns | Model Number | EN10305-1 Mechanical steel Tube |
| Certification | ISO9000 | Place of Origin | CHANGZHOU, CHINA |
| High Light | EN 10305-1 Seamless Precision Steel Tube ，NBK Seamless Precision Steel Tube ，DIN 2391 Seamless Precision Steel pipe | ||
Bright annealed / NBK Precision Seamless Steel Tube according to DIN 2391 / EN 10305-1 / EN10305-4
Main Features:
High accuracy, excellent brightness, free of rust, no oxide layer, no cracks and other defects, high inside wall cleanness. And the high-pressure carbon steel tubes are able to stand high pressure, No deformation after cold bending, no cracking after flaring and flattening. The complicated geometrical forming and machining can be realized.
▪ Main Application:
Precision tubes for hydraulic systems, automobiles, Diesel Engines, machinery, and other areas which require high precision, cleanness, and high mechanical properties performance.
▪ Standard:
DIN 2391, EN 10305-1, EN 10305-4
▪ Materials:
ST35, ST37.4, ST37, ST45, ST52, ST52.4, E235, E255, E355.
▪ Delivery condition:
NBK, bright anaerobic normalizing.
EN 10305-1 Chemical composition(%)
| Steel grade | Steel | C(% max) | Si(% max) | Mn(% max) | P(% max) | S(% max) |
| E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 | 0.015 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.015 |
| E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.015 |
EN 10305-1 Mechanical and technological properties
| Yield strength (min Mpa) | Tensile strength (min Mpa) | Elongation (min %) |
| 215 | 290-430 | 30 |
| 235 | 340-480 | 25 |
| 355 | 490-630 | 22 |
Condition on delivery of EN 10305-1:
| Term | Symbol | Explanation |
| Cold-finished/hard | BK | No heat treatment after the last cold-forming process. The tubes, therefore, have only low deformability. |
| Cold-finished/soft | BKW | After the last heat treatment, there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits. |
| Annealed | GBK | After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum. |
| Normalized | NBK | The tubes are annealed above the upper transformation point in a controlled atmosphere or under a vacuum. |
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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