ASTM A106 / A106M Grade A

Chemical Composition

Elements Composition, %
Carbon, max 0.25 [Note A]
Manganese 0.27 - 0.93
Phosphorus, max 0.035
Sulfur, max 0.035
Silicon, min 0.10
Chromium, max [Note C] 0.40
Copper, max [Note C] 0.40
Molybdenum, max [Note C] 0.15
Nickel, max [Note C] 0.40
Vanadium, max [Note C] 0.08
Note A: For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum will be permitted up to a maximum of 1.35 %.
Note C: These five elements combined shall not exceed 1 %.

Mechanical Properties

Property Tensile Strength, ksi Yield Point, min, ksi Elongation, min, %, in 2 Inch.
Longitudinal Transverse
Round Strip Round Strip
48 [330] 30 [205] 28 35 20 25

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