SAE AMS 6361E
This specification covers an aircraft-quality, low-alloy steel in the form of round, seamless tubing having a wall thickness not greater than 0.188 inch (4.78 mm).This tubing has been typically used in thin wall-thickness sections where a minimum tensile strength of 125 ksi (862 MPa) is required, but usage is not limited to such applications.
Keywords: AMS6361