What Is DIN 17175 ST 35.8 Equivalent To ASTM

Mar 26, 2024

  • DIN 17175 ST 35.8 is equivalent to ASTM A179.

Both standards specify seamless carbon steel tubes for use in heat exchangers and condensers. The two materials have similar properties and have similar application areas, especially at high temperatures and heat transfer environments.

  • Chemical Compositions of DIN 17175 ST 35.8

Grade C Si Mn P S Cr Mo
St35.8 ≤0.17 0.10-0.35 0.40-0.80 ≤0.040 ≤0.040 / /

ST35.8 Carbon Seamless Steel Pipe 

  • Chemical Components (%) of ASTM A179/A179M

Grade C Si Mn P S Mo Cr V
A179/A179M 0.06-0.18 / 0.27-0.63 ≤0.035 ≤0.035 / /

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  •  Mechanical Properties of DIN17175

    Grade Yield Strength (Mpa) Tensile Strength (Mpa) Elongation(%)
    St35.8 ≥235 360-480 25
  • Mechanical Properties of ASTM A179/A179M

Grade Tensile
Strength (Mpa)
Yield
Strength (Mpa)
Elongation
(%)
Hardness
(HRB)
A179/A179M ≥325 ≥180 ≥35

≤72

A179 Boiler Pipe