DIN17175 boiler tube description
DIN17175 boiler seamless steel pipe is a specialized tubing material in the chemical engineering field, primarily used for pressure parts (working pressure ≥9.8 MPa) and petrochemical equipment operating at temperatures between 450°C and 650°C, covering key components such as economizers and superheaters.
Chemical Composition Of DIN17175 heat-resistant seamless steel pipe
Mechanical Properties of DIN17175 steel pipe
DIN17175 V.S EN10216-2 Chemical Composition Comparison Table
| Standard | Grade | C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|---|
| DIN17175 | St35.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.030 | ≤0.030 | - | - |
| DIN17175 | St45.8 | ≤0.21 | 0.10-0.35 | 0.40-1.20 | ≤0.030 | ≤0.030 | - | - |
| DIN17175 | 15Mo3 | 0.12-0.20 | 0.10-0.35 | 0.40-0.80 | ≤0.030 | ≤0.030 | - | 0.25-0.35 |
| EN10216-2 | P195GH | ≤0.13 | ≤0.35 | ≤0.70 | ≤0.025 | ≤0.020 | ≤0.30 | ≤0.08 |
| EN10216-2 | P235GH | ≤0.16 | ≤0.35 | ≤1.20 | ≤0.025 | ≤0.020 | ≤0.30 | ≤0.08 |
| EN10216-2 | P265GH | ≤0.20 | ≤0.40 | ≤1.40 | ≤0.025 | ≤0.020 | ≤0.30 | ≤0.08 |
DIN17175 V.S EN10216-2 Mechanical Properties Comparison Table
| Standard | Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| DIN17175 | St35.8 | 360-480 | ≥235 | ≥25 |
| DIN17175 | St45.8 | 410-530 | ≥255 | ≥21 |
| DIN17175 | 15Mo3 | 460-600 | ≥270 | ≥20 |
| EN10216-2 | P195GH | 320-440 | ≥195 | ≥27 |
| EN10216-2 | P235GH | 360-500 | ≥235 | ≥25 |
| EN10216-2 | P265GH | 410-570 | ≥265 | ≥23 |
Testing of DIN17175 Seamless Steel Tubes For Elevated Temperatures
Packing:
Inner packing:Caps on two ends of every pipe
Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers' requirements .
Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
Marking: as per customer's requirement
