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DIN 17173-85 Seamless Circular Tubes
This standard applies to seamless circular tubes made from carbon and alloy steels with low temperature toughness or low temperature applications.
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of din 17173-85 seamless circular tubes in China, featured by quality products and low price. If you're going to wholesale durable din 17173-85 seamless circular tubes made in China, welcome to get pricelist and free sample from our factory.
1.Chemical composition
| Grade | Mfg. process | Chemical composition % | ||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | others | ||
| TSt35N | S | 0.17 | 0.35 | 0.40 | 0.030 | 0.025 | - | - | - | Al 0.020 min |
| TSt35V | S | 0.17 | 0.35 | 0.50-0.80 | 0.030 | 0.025 | - | - | - | Al 0.020 min |
| 26CrMo4 | S | 0.22-0.29 | 0.35 | 0.70-1.50 | 0.030 | 0.025 | - | 0.90-1.20 | - | - |
| 11MnNi53 | S | 0.14 | 0.50 | 0.85-1.65 | 0.030 | 0.025 | 0.30-0.80 | - | - | Al 0.020 min |
| 13MnNi63 | S | 0.18 | 0.50 | 0.85-1.65 | 0.030 | 0.025 | 0.30-0.85 | - | - | - |
| 10Ni14 | S | 0.15 | 0.35 | 0.30-0.80 | 0.025 | 0.020 | 3.25-3.75 | - | - | - |
| 12Ni19 | S | 0.15 | 0.35 | 0.30-0.80 | 0.025 | 0.020 | 4.50-5.30 | - | - | - |
| X8Ni19 | S | 0.10 | 0.35 | 0.30-0.80 | 0.025 | 0.025 | 8.00-10.00 | - | - | - |
2.Mechanical property
| Grade | Material number | Min Yield point | Tensile strength | Remarks (similar to JIS) |
| TSt35N | 1.0358 | 225 | 340-460 | - |
| TSt35V | 1.7219 | t 25mm Max255 25mm＜t40mmMax235 | 340-490 | - |
| 26CrMo4 | 26CrMo4 | t25mmMax440 25mm＜t40mmMax420 | 560-740 | - |
| 11MnNi53 | 1.6212 | t 25mm Max285 13mm＜t25mmMax275 25mm＜t40mmMax265 | 410-530 | - |
| 13MnNi63 | 1.6217 | t 13mmMax355 13mm＜t25mmMax345 25mm＜t40mmMax335 | 490-610 | - |
| 10Ni14 | 1.5837 | t 25mmMax 345 25mm＜t40mmMax335 | 470-640 | （STBL46） |
| 12Ni19 | 1.5680 | t 25mmMax390 25mm＜t40mm Max380 | 510-710 | - |
| X8Ni19 | 1.5662 | t 25mm Max490 25mm＜t40mmMax480 | 640-840 | （STBL70） |
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