ASTM-A 36 SPECIFICATIONS
|
Product |
Shapes* |
Plates |
Bars |
|||||||
|
Thickness |
All |
To 3/8 in. incl. |
Over 3/8 to 1 1/2 in. incl. |
Over 1 1/2 to 2 1/2 in. incl. |
Over 2 1/2 to 4 in. incl. |
Over 4 in. |
To 3/8 in. incl. |
Over 3/8 to 1 1/2 in. incl. |
Over 1 1/2 to 4 in. incl. |
Over 4 in. |
|
Carbon, max. % |
0.26 |
0.25 |
0.25 |
0.26 |
0.27 |
0.29 |
0.26 |
0.27 |
0.28 |
0.2 |
|
Manganese, % |
0.80 to 1.20 |
0.80 to 1.20 |
0.85 to 1.20 |
0.85 to 1.20 |
0.60 to 0.90 |
0.60 to 0.90 |
0.60 to 0.90 |
|||
|
Phosphorus, max. % |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
|
Sulfur, max. % |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
|
Silicon, % |
0.15 to 0.30 |
0.15 to 0.30 |
0.15 to 0.30 |
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|
Copper , min. %, (when copper steel is specified.) |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
0.20 |
*Manganese content of 0.85 to 1.35 % and silicon content of 0.15 to 0.30 % is required for shapes over 426 lb./ft.
TENSILE REQUIREMENTS
|
Plates, ShapesA, and Bars |
|
|
Tensile strength, psi |
58,000-80,000 |
|
Yield point, min. psi |
36,000B |
|
Plates and Bars |
|
|
Elongation in 8 in. min. % |
20C |
|
Elongation in 2 in. min. % |
23 |
|
Shapes |
|
|
Elongation in 8 in. min. % |
20C |
|
Elongation in 2 in. min. % |
21A |
A
For wide flange shapes over 426 lb./ft. tensile strength minimum of 58,000 only and elongation in 2 in. of 19 % minimum applies.B
Yield point 32,000 psi for plates over 8 in. in thickness.C
See Section 7(c) ASTM manual.
PLATE WEIGHT FORMULA
Length(Ft.) x Width(Ft.) x Wt. Sq.
Ft. = Wt./Plate or .2836 x Length
(Inches) x Width(Inches) x Thickness
= Wt. of One Plate