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DIN 2395-3 Rectangular And Square Electric Welded Precision Steel Tubes
RECTANGULAR AND SQUARE ELECTRIC WELDED PRECISION STEEL TUBES
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of din 2395-3 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 2395-3 rectangular and square electric welded precision steel tubes made in China, welcome to get pricelist and free sample from our factory.
1.Chemical composition
code number for material | chemical composition（%） | ||||||
| C max | P max | S max | N max | Si max | Mn max | Al min | |
| USt37-2 | 0.21 | 0.065 | 0.065 | 0.009 | - | - | - |
| RSt37-2 | 0.19 | 0.060 | 0.060 | 0.010 | - | - | - |
| St37-2 | 0.19 | 0.050 | 0.050 | - | - | - | |
| St44-2 | 0.24 | 0.060 | 0.050 | 0.010 | - | - | - |
| St44-3 | 0.23 | 0.050 | 0.050 | - | - | - | |
| M22 | 0.16-0.23 | 0.040 | 0.040 | - | 0.28 | 0.40 to 0.75 | 0.02 |
| QSTE340N | 0.18 | 0.035 | 0.035 | - | 9.53 | 1.56 | - |
2.Mechanical property
| code number for material | Mechnical properties | |||||
| NBK（ norminalized） | BKM （welded and sized） | |||||
| Tensile strength Rm N/mm² | Yield point ReH N/mm²min | Elongation at rupturre A5% min | Tensile strength Rm N/mm² | Yield point ReH N/mm² min | Elongation | |
| USt37-2 | 360 to 470 | 235 | 23 | 390 | 250 | 7 |
| RSt37-2 | ||||||
| St37-3 | ||||||
| St44-2 | 430 to 540 | 275 | 21 | 460 | 290 | 6 |
| St44-3 | ||||||
| M22 | 420 min | 290 | 25 | - | - | - |
| QSTE340 N | 4600 to 580 | 340 | 27 | - | - | - |
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