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Technical requirement for ASTM A709 carbon and high-strength low alloy steel

Technical requirement for ASTM A709 carbon and high-strength low alloy steel

Posted:2020-04-24 11:28:04
Technical requirement for ASTM A709 carbon and high-strength low alloy steel
As for the technical requirement for ASTM A709 carbon and high-strength low alloy steel like chemical requirement and mechanical properties, please take a look of the following tables. There are the detailed info for ASTM A709 Grades 36, 50, 50S, HPS 50W and HPS 70W.

ASTM A709 steel chemical composition (%) 

Elements Grade 36 Grade 50 Grade 50S Grade HPS 50W Grade HPS 70W
Carbon, max 0.26 0.23 0.23 0.11 0.11
Manganese, max.  - 1.35 0.50-1.60 1.10-1.35 1.10-1.35
Phosphorous,max 0.040 0.03 0.035 0.020 0.020
Sulfur,max 0.050 0.030 0.045 0.006 0.006
Silicon 0.40 max. 0.40 max. 0.40 max. 0.30-0.50 0.30-0.50
Copper 0.20 - 0.6 0.25-0.40 0.25-0.40
Columbium - 0.005-0.05 0.05 max - -
Vanadium - - 0.15 max 0.04-0.08 0.04-0.08
Nickel - - 0.45 max 0.25-0.40 0.25-0.40
Chromium - - 0.35 max 0.45-0.70 0.45-0.70
Molybdenum - - 0.15 max 0.02-0.08 0.02-0.08
Aluminum - - - 0.010-0.040 0.010-0.040
Nitrogen - - - 0.015 max 0.015 max

ASTM A709 steel mechanical properties

Grade Thickness mm Yield strength, min, kis [MPa] Tensile strength Mpa min Elongation in 8 in. [200 mm], min, % Elongation in 2 in. [50 mm], min, %
A709 Grade 36 ≤100 36[250] 58-80[400-550] 20 23
A709 Grade 50 ≤100 50[345] 65[450] 18 21
A709 Grade 50S - 50[345] 65[450] - -
A709 Grade 50W ≤100 50[345] 70[485] 18 21
A709 Grade HPS 50W ≤100 50[345] 70[485] 18 21
If you are interested in A709 Grade 36 carbon steel plate, A709 Grade 50S low alloy steel price, welcome to contact us. We will offer the quotation for you asap. 
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