alloy steel tubing 4140 sizes used in the oil and gas industry for above ground and down hole applications. alloy steel tubing 4140, also sold under the name AISI/SAE 4140, is a low alloy steel that contains
chromium, molybdenum, and manganese. Alloy Steel. 4140 tubing offers all of the qualities of 4140 Tube stock — hardenability, strength, wear, resistance, toughness and ductility.
ASTM A519 Grade 4140 ,4130 Tubing Supplier ,4130 Alloy Tubing ,A519 HF Seamless 4140 Alloy Round Tubing,