ASTM A27 / A27M Grade 65 - 35

Chemical Properties

Carbon,B max Manganese,B max Silicon, max Sulfur, max Phosphorus, max
Note B: For each reduction of 0.01 % carbon below the maximum specified, an increase of 0.04 % manganese above the maximum specified will be permitted to a maximum of 1.40 % for Grade 70-40 [485-275] and 1.00 % for the other grades.

Mechanical Properties

Tensile Strength, min
ksi (Mpa)
Yield Point, min
ksi (Mpa)
Elongation in 2 in.
(50 mm), min %B
Reduction of area, min, %
Note B: When ICI test bars are used in tensile testing as provided for in this specification, the gage length to reduced section diameter ratio shall be 4 to 1.
Note C:Grade 70-40 [485-275] may be used to meet the requirement of Grade 70-36 [485-250], when agreed upon between the manufacturer and the purchaser.