ASTM A36 / A36M
This specification covers carbon steel shapes, plates and bars of structural quality for use in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes.
A36 MECHANICAL RQEUIREMENTS

Tensile, Ksi 58 – 80
Yield, Min Ksi 36
Elongation, min % in 2” 20
Elongation, min % in 8” 23

A307 CHEMICAL RQEUIREMENTS

Thickness, Inches Up to 3/4″
(M20)
Over 3/4″ to 1-1/2″
(M20-40)
Over 1-1/2″ to 4″
(M40-M65)
Over 4″
(M65-M100)
Carbon, Max% 0.26 0.27 0.28 0.29
Manganese, Max% – – 0.60 – 0.90 0.60 – 0.90 0.60 – 0.90
Phosphorus, Max% 0.04 0.04 0.04 0.04
Sulfur, Max% 0.05 0.05 0.05 0.05
Silicon, Max% 0.40 0.40 0.40 0.40
Copper, Min% When Copper is Specified 0.20 0.20 0.20 0.20
Grade Size Recommended A563/A563M/A194 Nut Washer
Plain Finish Hot dipped Coated
Grade Style Grade Style
36 (M12-M72) 1⁄2 – 4” 10S-A Heavy Hex 10S-A Heavy Hex F436M/F436
B7 (M12-M72) 1⁄2 – 4” 10S-2H Heavy Hex 10S-2H Heavy Hex F436M/F436