ASTM A423/A423M Standard Specification for Seamless and Electric-Welded Low-Alloy Steel Tubes

Chemical Composition of ASTM A423/A423M Grade 3 Alloy Steel Pipes

C % Mn % P % S % Si % Cu % Cr % Ni % Mo % Sb %
ASTM A423 Gr.3 0.06 max 0.70-1.40 0.020 max 0.020 max 0.55 max 0.25-0.45 0.50 max 0.20 max 0.05-0.15
S-TEN1 0.14 max 1.60 max 0.025 max 0.025 max 0.55 max 0.25-0.50 0.50 max 0.15 max
09CrCuSb 0.12 max 0.35-0.65 0.030 max 0.020 max 0.17-0.37 0.25-0.45 0.70-1.10 0.04-0.10

 

Mechanical Properties of ASTM A423/A423M Grade 3 Alloy Steel Pipes

Tensile Strength, Mpa Yield Strength, MPa Elongation, %
ASTM A423 Gr.3 380 min 230 min 35 min
S-TEN1 380 min 230 min 35 min
09CrCuSb 390-550 245 min 30 min