ST35.8 DIN17175 Seamless Carbon Steel Heat Exchanger Pipes 25.4mm x 2.77mm for High-Pressure Boilers up to 650°C
Price:
Negotiable
MOQ:
2Tons
Delivery Time:
30days
Brand:
Joyruns
Product Description
ST35.8 Heat Exchanger Seamless Carbon Steel Pipes
Product Overview
DIN17175 ST35.8 cold drawn seamless heat exchanger tubes measuring 25.4mm outer diameter with 2.77mm wall thickness. These high-performance pipes are engineered for demanding industrial applications requiring exceptional strength and thermal efficiency.
Applications
- Boiler installations and high-pressure pipelines
- Tank construction and special machinery
- High-pressure boilers (working pressure above 9.8 MPa)
- Operating temperature range: 450°C to 650°C
- Heating surface pipes, economizers, superheaters, and reheater tubes
- Petrochemical industry applications
Surface Treatment Options
Available with various surface treatments including oil-dip, varnish, passivation, phosphating, and shot blasting to meet specific operational requirements.
Technical Specifications
Chemical Composition (%)
| Standard | Grade | C | Si | Mn | P | S | Mo | Cr |
|---|---|---|---|---|---|---|---|---|
| DIN17175 | St 35.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.040 | ≤0.040 | / | / |
| St 45.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.040 | ≤0.040 | / | / | |
| 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 | 0.45-0.65 | 0.70-1.10 | |
| 10CrMo910 | 0.08-0.15 | ≤0.50 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.90-1.20 | 2.0-2.50 |
Mechanical Properties
| Standard | Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| DIN17175 | St 35.8 | 360-480 | ≥235 | ≥25 |
| St 45.8 | 410-530 | ≥255 | ≥21 | |
| 15Mo3 | 450-600 | ≥270 | ≥22 | |
| 13CrMo44 | 440-580 | ≥290 | ≥22 | |
| 10CrMo910 | 450-600 | ≥280 | ≥20 |
Product Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee