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Seamless Steel Tube DIN17175

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Standard for Seamless Tubes of Heat-resistant Steels.

Application:
This standard including tubes for headers of heat-resistant steels which are used in the construction of boilers,pipe-lines,pressure vessels and equipment for service up to 600°C and simultaneous high pressures,where the total stross and the relevant scaling conditions can raise or lower the temperature limit.

Details

Size:
O.D.: 6.0-820.0mm W.T.: 1.0-80.0mm Length: Max.17000mm

Steel Grade and Chemical Composition(%)

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 / /
St45.8 ≤0.21 0.10-0.35 0.40-1.20 ≤0.030 ≤0.030 / /
15Mo3 0.12-0.20 0.10-0.35 0.40-0.80 ≤0.030 ≤0.030 / 0.25-0.35

Mechanical Properties
Standard Grade Tensile Strength(Mpa) Yield Point(Mpa) Elongation(A%)
DIN17175 St35.8 360-480 ≥235 ≥25
St45.8 410-530 ≥255 ≥21
15Mo3 450-600 ≥270 ≥22

Other steel grade like 17Mn4,19Mn5,13CrMo44,10CrMo910,14MoV63,X20CrMoV121 are also available.
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