DIN 17175 boiler tubes are pipes used in boiler heat exchange systems, primarily serving as heating surface tubes for low- and medium-pressure boilers and components like economizers and superheaters in high-pressure boilers. Their outer diameter ranges from 21.3 to 406 mm, with wall thicknesses between 2.0 and 40 mm. They are suitable for low- and medium-pressure boilers with operating pressures not exceeding 5.88 MPa and temperatures below 450°C, as well as high-pressure boilers with pressures above 9.8 MPa and temperatures between 450°C and 650°C.
Chemical composition of DIN 17175 alloy steel pipe
Mechanical property of DIN 17175 heat-resistant steel pipe
DIN 17175 Steel Pipe Equivalent Steel Grade
DIN 17175 vs. DIN 17155
| Comparison Dimension | DIN 17175 | DIN 17155 |
|---|---|---|
| Standard Name | Heat-resistant seamless steel tubes for high-pressure boilers | Hot-rolled plates for boilers and pressure vessels |
| Product Form | Seamless Steel Tubes | Hot-Rolled Plates |
| Core Applications | High-temperature and high-pressure piping systems | Pressure vessel shell structures |
| Typical Use Cases | ▶ Boiler superheaters/reheaters ▶ Main steam pipelines |
▶ Boiler drums ▶ Pressure vessel shells/heads |
| Key Material Grades | 10CrMo910 (2.25Cr-1Mo) 15Mo3 (0.5Mo) |
19Mn6 (Q345R) 16Mo3 (0.5Mo plate) |
| Maximum Design Temperature | 650°C (e.g., 13CrMo44) | 400°C (e.g., 19Mn6) |
| Design Pressure Range | Up to 32MPa (supercritical units) | Typically ≤10MPa (low-medium pressure vessels) |
| International Equivalent Standards | ▶ China: GB 5310 ▶ USA: ASME SA213 |
▶ China: GB 713 (Q345R) ▶ EU: EN 10028 |
| Manufacturing Process Requirements | 100% NDT + hydrostatic test | Ultrasonic testing + impact toughness verification |
Inspection and Test:
Chemical Composition Inspection
Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test)
Surface and Dimension Test
Nodestructive Test
Hydrostatic Test
Packaging and shipping
Beveled
black painting
plastic caps
in bundles
steel strips
wooden protection
