DIN 17175 Grade 15Mo3 Economizer Tube


Standards: DIN17175

Corresponding: GB5310

Outer diameter: 4.0-76.0 mm

Wall thickness: 0.5-0.8 mm

Length: 5.8-12m

DIN 17175 is the specification for a heat-resisting seamless steel tube. Grade 15Mo3 alloy steel pipe is commonly used for heating surface pipes of low and medium pressure boilers. 15Mo3 steel pipe is used for the heating surface tube, economizer, superheater and reheater of the high-pressure boiler (working pressure is generally above 9.8Mpa and the working temperature is between 450℃ and 650℃).

15Mo3 Tube Chemical Composition

C Si Mn P S Cr Mo
0.12-0.20 0.10-0.35 0.4-0.8 ≤0.030 ≤0.030 / 0.25-0.35

15Mo3 Tube Physical Property

Grade Tensile strength Rm Yield strength YS Elongation A(%)
15Mo3 450-600 270 MPa 22

15Mo3 is the commonly used alloy material in the DIN17175  standard used for a high-pressure boiler system. supplied with heat treatment is mainly normalizing or normalizing + tempering, which is a common material in the economizer system. WLD steel offers 15Mo3 steel seamless tube for boiler and economizer, superheater and reheater system in various sizes and specifications. If you are looking for this material, please contact us or get a quotation. Not only do we have all kinds of sizes, but we also have all kinds of sizes that are hard to find.