Astec Tube is a reliable AISI 4140 Alloy Steel Seamless Pipe supplier in India, offering pipes which is used across industries worldwide. Grade AISI 4140 is a low alloy steel containing chromium, molybdenum, and manganese. This grade has a little more carbon than 4140, which increases its strength. The AISI 4140 Pipe with high toughness, good resistance to atmospheric corrosion and reliable mechanical performance. It is a versatile alloy that is well-known for its durability, and strength under extreme situations.
The chemical composition of 4140 grade pipe is what gives it a superior balance. It contains iron (96.78–97.77%), chromium (0.80–1.10%), manganese (0.75–1.0%), carbon (0.38–0.43%), silicon (0.15–0.30%), molybdenum (0.15–0.25%), sulfur (0.040 max) and phosphorus (0.035 max). Its density is 7.85 g/cm³, and it has a melting point of 1416°C (2580°F). These properties make AISI 4140 steel pipe strong yet workable for many processes. To ensure performance, pipes undergo strict tests such as NACE MR 0175, NACE TM0177, NACE TM0284, HIC Test, SSC Test, H₂ Service, and IBR compliance. This testing assures customers that every SAE AISI 4140 Alloy Steel Pipe that meets global standards.
Specification of AISI 4140 Alloy Steel Seamless Pipes
AISI 4140 Pipe Standard : AISI 4140, ASTM A519
AISI 4140 Pipe Size : 1/2” NB to 36” NB
AISI 4140 Pipe Thickness : 3-12 mm
AISI 4140 Pipe Schedules : SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
AISI 4140 Pipe Tolerance : Cold drawn pipe: +/-0.1 mm; Cold rolled pipe: +/-0.05 mm
Craft : Cold rolled and Cold drawn
AISI 4140 Pipe Type : Seamless / ERW / Welded / Fabricated
AISI 4140 Pipe Form : Round, Square, Rectangular, Hydraulic, Etc.
AISI 4140 Pipe Length : Standard, Double Random & Cut Length
AISI 4140 Pipe End : Plain End, Beveled End, Threaded
Specialized in : Large Diameter AISI 4140 Pipe
Additional Testing : NACE MR 0175, NACE TM0177, NACE TM0284, HIC Test, SSC Test, H2 Service, IBR, etc.
Application : Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service