A519 4140 seamless tube is alloy steel seamless mechanical tubing. Katalor can produce A519 4140 seamless tube mechanical tubing in size up to and including 12¾. [325mm] outside diameter for A519 4140 round tubes with wall thickness as required.
What’s A519 4140 Seamless Tube ?
1.41 means a low alloy steel containing 1% Chromium and 0.2% Molybdenum.
2.40 means a carbon content of 0.30%.
3.In a addition there will be around 0.2-0.50% silicon, 0.550-1.00% Manganese, and under 0.1% of each of a dozen or so other elements whose presence is unavoidable.
A519 4140 mechanical tubing has a high work hardening rate, and efficient machining requires rigid and overpowered machines, sharp tools, preferably carbide – tipped, and heavy, constant feeds. Today, ASTM A519 Tubing with restricted chemistry can be used in the welded condition and is less susceptible to SCC under many conditions.
A519 4140 seamless tube mechanical tubing steel may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The A519 4140 seamless tube mechanical tubing producer shall remove the transition material by an established procedure that positively separates the grades. A519 4140 seamless tubing shall be made by a seamless process and shall be either hot finished or cold finished, as specified.
