DIN 17175 Grade 13CrMo44 Boiler Tube


Standards: DIN17175

Equivalent Materials : 13CrMo4-5, T12, P12, 620-440

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 13CrMo44 alloy steel tube is used in the heating surface pipe with low and medium pressure boilers, in which operating pressure is generally not greater than 5.88mpa and the operating temperature is below 450℃. The addition of Ni and Cr element makes 13CrMo44 steel tube with high mechanical performance and corrosion resistance, which is used for heating surface pipes, coal economizers, superheaters, reheaters, petrochemical industry pipes and so on in high-pressure boilers (working pressure is generally above 9.8 Mpa and the working temperature is between 450℃ and 650℃).

13CrMo44 Tube Chemical Composition

C Si Mn P S Cr Mo
0.10-0.18 0.10-0.35 0.4-0.7 ≤0.035 ≤0.035 0.7-1.1 0.45-0.65

13CrMo44 Tube Physical Property

Grade Tensile strength Rm Yield strength YS Elongation A(%)
13CrMo44 440-590 MPa at 20 °C 290 MPa at 20 °C >22

13CrMo44 is the commonly used alloy material in the DIN17175  standard used for a high-pressure boiler system. WLD steel offers 13CrMo44 steel seamless boiler tubes in various sizes and specifications. If you are looking for this material, please contact us or get a quote! Not only do we have all kinds of sizes, but we also have all kinds of sizes that are hard to find.