Din 17175 ST 35.8 seamless steel tubes for boiler
- 1. DIN 17175 ST 35.8 Seamless Steel Tubes for Boiler Industry Heat-resisting seamless steel tube, used for the pipelines of boiler industry. Manufacture method: cold rolled, cold drawn Standard and material: DIN17175 ST35.8,ST35.8-III or equivalent standard & material like ASTM A179, ASTM A192.
- Size range: 12.7mm*1.2mm – 114.3mm*15mm Chemical composition of ST35.8 boiler tube: Grade C Si Mn P S ST 35.8 0.17 max 0.10-0.35 0.40-0.80 0.030% max 0.030% max
- Mechanical properties of ST35.8 steel tube:
- Tensile strength: 360 to 480 MPa
- Yield strength: 235 MPa
- Elongation: 25% min
- Packaging & Shipping Packing: bundle packing, black painting or varnish or oil coating, end plastic caps.
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DIN 17175 Boiler tube Mechanical Property &Chemical Components Material Tensile strength (MPa) Yield strength (MPa) Elongation (%) C Si Mn P、S Cr Mo St35.8 360～480 ≥235 ≥25 ≤0.17 0.10～0.35 0.40～0.80 ≤0.030 / / St45.8 410～530 ≥255 ≥21 ≤0.21 0.10～0.35 0.40～1.20 ≤0.030 / / 15Mo3 450～600 ≥270 ≥20 0.12～0.20 0.10～0.35 0.40～0.80 ≤0.030 / 0.25～0.35 13CrMo44 440～590 ≥290 ≥20 0.10～0.18 0.10～0.35 0.40～0.70 ≤0.030 0.70～1.10 0.45～0.65 10CrMo910 450～600 ≥280 ≥18 0.08～0.15 ≤0.50 0.40～0.70 ≤0.030 2.00～2.50 0.90～1.20
