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DIN17175 Seamless Steel Tubes for Elevated Temperatures

Application: This type tube is widely used boiler,Superheater, condenser and similar heat transfer equipments.

Standard: DIN17175-79


OD: 12.7-177.8 mm

WT:2.2-15 mm

Length: 25 meters(Max)

Fabricating process: Seamless & Cold drawn

Heat treatment: Annealed

Non-destructive test:  100% Eddy Current Test

Package: Bundle package or plywood box


Standead   Grade Chemical  Composition%
C Mn P S Si
DIN17175 St35.8 ≤0.17 0.40-0.80 ≤0.030 ≤0.030 0.10-0.35
St45.8 ≤0.21 0.40-1.20 ≤0.030 ≤0.030 0.10-0.35


Standead   Grade  Chemical Composition%
Tensile Strength(Mpa) Yield Strength(Mpa) Elongation(%)
DIN17175 St35.8 360-480 ≥235 ≥25
St45.8 420-530 ≥255 ≥21
Category: Economizer tube

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