219~965mm OD Seamless Steel Tubing / Seamless Mechanical Tubing DIN 17175 3CrMo44 1
Seamless Steel Tubing DIN 17175 3CrMo44 1Heat resisting Tube
Standard: DIN17175
Main steel grades: 15Mo3, 13CrMo44, 10CrMo910
Application: For high-pressure boilers(working pressure is generally 9.8 Mpa above, working temperature is between 450 °C and 650 °C) hot surface pipes, coal economizers, superheaters, reheaters, petrochemical industry etc.
Chemical Requirements & Mechanical Proterties:
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 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 | 0.46-0.65 |
| 10CrMo910 | 0.08-0.15 | ≤0.50 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.20-0.25 | 0.90-1.20 |
| Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation(%) |
| 15Mo3 | ≥275 | 450-600 | 20 |
| 13CrMo44 | ≥290 | 440-590 | 20 |
| 10CrMo910 | ≥280 | 450-600 | 18 |
Mark: As required.
Inspection and Test: chemical composition test, mechanical properties test(tensile, yield, elongation), process properties test(flatting, flaring, bending, hardness, impact, etc.), appearance and size test, non-destructive inspection test, hydrostastic test.
Delivery status: Annealed, normalized, normalized+Tempered, etc.
End: plain end, beveled end, threaded
End protection: plastic caps
Outside coating: black painting, anti-corrosion oil,galvanized finish, finish as per customer requirements.
Packing: Exporting package/wooden box /as requirement.
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