ASTM A135 / A135M Grade A

Chemical Properties

Element	Composition, %
Carbon	0.25
Manganese	0.95
Phosphorus	0.035
Sulfur	0.035

Mechanical Properties

Tensile strength, min, psi [MPa]	Yield strength, min, psi [MPa]	Elongation in 2 in. or 50 mm
		For pipe having a specified wall thickness of 5/16 in. [7.9 mm] or more	For pipe having a specified wall thickness of less than 5/16 in. [7.9 mm]	For pipe of any size
48 [330]	30 [205]	35	A	35

Note: AThe minimum elongation shall be determined by the following equation, with the calculated value rounded to the nearest percent:

E = 56t + 16.5
[E 5 2.2t116.5]
where: E = elongation in 2 in. or [50 mm], minimum, %, and t = specified wall thickness, in. [mm]. BThe minimum elongation shall be determined by the following equation, with the calculated value rounded to the nearest percent:

E = 48 + 14
[E = 1.9 + 14]
where: E = elongation in 2 in. or [50 mm], minimum, %, and t = specified wall thickness, in. [mm].

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