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Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
FAX: 86-22-25343802
CELL: 86-18526839451, 86-18526839452
EMAIL: admin@wanleipipe.com
WEBSITE: www.seamlesscarbonsteelpipe.com
ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)
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Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of din 17175-79 seamless steel tubes in China, featured by quality products and low price. If you're going to wholesale durable din 17175-79 seamless steel tubes made in China, welcome to get pricelist and free sample from our factory.
This standard applies to seamless tubes 1) including tubes for headers of heat-resistant steels according to Table 1 which are used in the construction of boilers, pipe-lines, pressure vessels and equipment for service up to 600∩ and at simultaneous high pressures, where the tototal stress and the relevant scaling conditions can raise or lower the temperature limit.
Chemical composition
| Grade | Mtg.process | chemical composition % | ||||||||
| C | Si | Mn | P(max) | S(max) | Ni | Cr | Mo | others | ||
| St35.8 | S | 0.17max | 0.10-0.35 | 0.40-0.80 | 0.040 | 0.040 | - | - | - | |
| St45.8 | S | 0.21max | 0.10-0.35 | 0.40-1.20 | 0.040 | 0.040 | - | - | - | |
| 17Mn4 | S | 0.14-0.20 | 0.20-0.40 | 0.90-1.20 | 0.040 | 0.040 | - | 0.30 | - | |
| 19Mn5 | S | 0.17-0.22 | 0.30-0.60 | 1.00-1.30 | 0.040 | 0.040 | - | 0.30 | - | |
| 15Mo3 | S | 0.12-0.20 | 0.10-0.35 | 0.40-0.80 | 0.035 | 0.035 | - | - | 0.25-0.35 | |
| 13CrMo910 | S | 0.10-0.18 | 0.10-0.35 | 0.40-0.70 | 0.035 | 0.035 | - | 0.70-1.10 | 0.45-0.65 | |
| 10CrMo910 | S | 0.08-0.15 | 0.50max | 0.40-0.70 | 0.035 | 0.035 | - | 2.00-2.50 | 0.90-1.20 | |
| 14MoV63 | S | 0.10-0.18 | 0.10-0.35 | 0.40-0.70 | 0.035 | 0.035 | - | 0.30-0.60 | 0.50-0.70 | V:0.22-0.32 |
| X20CrMoV121 | S | 0.17-0.23 | 0.50max | 0.40-0.70 | 0.030 | 0.030 | 0.30-0.80 | 10.00-12.50 | 0.80-1.20 | V:0.25-0.35 |
Mechnical properites
| Grade | materia number | Tensile Test MPa | Remarks (similiar to JIS) | possibility temperature | ||
| Min Yield point | Tensile strength | |||||
| t 16max | 16＜t 40max | |||||
| St35.8 | 1.0305 | 235 | 225 | 360-480 | impact test at room temp.kg f(STPT38) | |
| St45.8 | 1.0405 | - | 245 | 410-530 | 23.5(STPT410,STB410) | |
| 17Mn4 | 1.0481 | - | 275 | 460-580 | 22.58 | |
| 19Mn5 | 1.0482 | - | 315 | 510-610 | 23.5(STB52) | |
| 15Mo3 | 1.5415 | 275 | 275 | 450-600 | 23.5 | |
| 13CrMo910 | 1.7335 | 295 | 295 | 440-590 | 23.2(STPA22,STBA22) | |
| 10CrMo910 | 1.7380 | 285 | 285 | 450-600 | 23.2(STPA24,STBA24) | |
| 14MoV63 | 1.7715 | 325 | 325 | 460-610 | 24.2 | |
| X20CrMoV121 | 1.4922 | 490 | 490 | 690-850 | 23.5 | |
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