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[China]
Address: 227-11666 DONGTAIHU STREET, SONGLING TOWN, SUZHOU CITY, JIANGSU PROVINCE, P.R.CHINA
Contact name:Vivie Chen
SUZHOU FRANK STEEL CO.,LTD. |
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DIN 17175 ST45.8 / III seamless steel tube for ressure vessels and high temperature boilers.
1. Product Description
Din17175 ST45.8/Ⅲ is a high temperature pipe, which is suitable for manufacturing boilers, heating pipes, superheaters, reheaters, pressure vessels and instruments with working temperature between 450 ℃ and 600 ℃. The main materials are st35.8, ST45.8, 15Mo3, 13CrMo44 and 10como910.
They have different inspection requirements, chemical compositions and physical properties. Customers can choose their own products according to their own needs. Please refer to the following table for specific chemical compositions and physical properties,
All kinds of DIN7175 ST45.8/Ⅲ steel pipes for export can be painted and marked on the surface, threaded and chamfered on both ends, with pipe caps and protective covers on both ends, with various export packaging methods to ensure the safe transportation of products,
Our products sell well all over the world, and high quality products are unanimously recognized by customers.
2. Chemical composition
| Standards | Steel pipes No. | Chemical composition(%) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | Al | W | Nb | N | ||
| DIN 17175 | ST35.8 | ≤0.17 | 0.10～0.35 | 0.40～0.80 | ≤0.040 | ≤0.040 | ≤0.30 | ||||||||
| ST45.8/Ⅲ | ≤0.21 | 0.10～0.35 | 0.40～1.20 | ≤0.040 | ≤0.040 | ≤0.30 | |||||||||
| 15Mo3 | 0.12～0.20 | 0.10～0.35 | 0.40～0.80 | ≤0.035 | ≤0.035 | 0.25～0.35 | |||||||||
| 13CrMo44 | 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 | 0.08～0.15 | ≤0.50 | 0.30～0.70 | ≤0.025 | ≤0.020 | 2.00～2.50 | 0.90～1.10 | ≤0.30 | ≤0.30 | ≤0.015 | |||||
3. Physical Properties
| Standards | Steel pipes No. | Tensile strength(MPa) | Bend strength(MPa) | Elongation(％) | Impact energy(J) | Hardness | |
| DIN17175 | ST35.8 | 360～480 | ≥235 | ≥25 | ≥34(DVM) | / | |
| ST45.8/Ⅲ | 410～530 | ≥255 | ≥21 | ≥27(DVM) | / | ||
| 15Mo3 | 450～600 | ≥270 | ≥22 | ≥34(DVM) | / | ||
| 13CrMo44 | 440～590 | ≥290 | ≥22 | ≥34(DVM) | / | ||
| 10CrMo910 | 480～630 | ≥280 | ≥20 | ≥34(DVM) | / |
4. Details Picture
