ASTM A333 Pipe Specifications
2 Chemical Requirements Composition, % Element Grade 1 Grade 3 Grade 6 Carbon, max Manganese Phosphorous, max Sulfur, max Silicon min Nickel For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese. When Grade 6 is ordered under this specification, …