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DIN 2395-1 Rectangular And Square Electric Welded Precision Steel Tubes
his Standard specifies the technical conditions of delivery for rectangular and square welde precision steel tubes according to DIN 2395 Part 1 made of the steel grades listed insection 5. Tubes in accordance with this Standard are manufactured by cold forming andelectric resistance pressure welding. This Standard does not apply to hollow sections for structural steel engineering according to DIN 59 411.
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of din 2395-1 rectangular and square electric welded precision steel tubes in China, featured by quality products and low price. If you're going to wholesale durable din 2395-1 rectangular and square electric welded precision steel tubes made in China, welcome to get pricelist and free sample from our factory.
DIN 2395-1 Rectangular And Square Electric Welded Steel Pipe
Chemical composition
| Code number for material | Chemical composition % | ||||||
| C max | P max | S max | N max | Si max | Mn max | Al | |
| UST37.2 | 0.21 | 0.065 | 0.065 | 0.009 | - | - | |
| RST37.2 | 0.19 | 0.060 | 0.060 | 0.010 | - | - | |
| ST37.3 | 0.19 | 0.050 | 0.050 | - | - | - | |
| ST44.2 | 0.24 | 0.060 | 0.060 | 0.010 | - | - | |
| ST44.3 | 0.23 | 0.050 | 0.050 | - | - | - | |
| M22 | 0.16-0.23 | 0.040 | 0.040 | - | 0.28 | 0.40-0.75 | |
| QSTE340N | 0.18 | 0.035 | 0.035 | - | 9.53 | 1.56 | |
Mechanical property
Code number for material | Mechanical properties for condition on delivery | |||||
| NBK(nominalized) | BKM （welded and sized） | |||||
| Tensile strength Rm N/mm² | Yield point ReH N/mm² min | Elongation at rupture A5% min | Tensile strength Rm N/mm² | Yield point ReH N/mm² min | Elongation at rupture A5% min | |
| UST37-2 | 360-470 | 235 | 23 | 390 | 250 | 7 |
| RST37-2 | ||||||
| ST37-3 | ||||||
| ST44-2 | 430-540 | 275 | 21 | 460 | 290 | 6 |
| ST44-3 | ||||||
| M22 | 420min | 290 | 25 | - | - | - |
| QSTE340N | 460-580 | 340 | 27 | - | - | - |
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