TIÊU CHUẨN THÉP A573-00a

ASTM A573-00a Structural Carbon Steel Plates of Improved Toughness 
Grade Thickness Chemical Compositions % Tensile Test
(t) mm C Si Mn P S Yield Point Tensile Strength Elongation
     
  ksi(N/mm2) ksi(N/mm2) Test piece in(mm) %
      min
Grade58 t ≦ 38.10 0.23 max 0.1 0.6 0.035 0.04 32(220) 58-71(400-490) GL = 8(200) 21
         
0.35 0.9 max max min GL = 2(50) 24
Grade65 t ≦ 12.70 0.24 max 0.15 0.85     35(240) 65-77(450-530) GL = 8(200) 20
         
12.70 < t ≦ 38.10 0.26 max 0.4 1.2     min GL = 2(50) 23
Grade70 t ≦ 12.70 0.27 max         42(290) 70-90(485-620) GL = 8(200) 18
             
12.70 < t ≦ 38.10 0.28 max         min GL = 2(50) 21

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