8640, 4″ Round Bar Forging Stock, MIL-S-46172, Steel Dynamics, @ 642,000 lbs, 5 Lots – West Coast
Asking $0.66 per lb, current market $0.77
Lots:
(1) 121249 lbs – Steel Dynamics
(2) 202827 lbs – Steel Dynamics
(3) 26115 lbs – Steel Dynamics
(4) 73123 lbs – Steel Dynamics
(5) 218496 lbs – Steel Dynamics
MIL-S-46172A, MILITARY SPECIFICATION: STEEL FORGINGS (09 NOV 1984)., This specification covers steel forgings that are produced by a hot deformation process such as hammering, pressing, upsetting, extruding, or any combination of these processes
Alloy steel 8640 is used in many industries, including aerospace, automotive, defense, and oil and gas. It’s also used in the military.
- Aircraft:Â Landing gear, airframes
- Automotive:Â Crankshafts, axles, pistons, engine parts, chassis, and structural components
- Defense:Â Used in military applications
- Oil and gas:Â Used in the oil and gas industry
- Tools:Â Forged hand tools, gears, firearm components
- Alloy steel 8640 is a special alloy steel that includes chromium, manganese, and molybdenum.Â
- It has lower carbon levels than most alloys, which allows it to respond better to mechanical and heat treatments.Â
- It’s formulated for primary forming into wrought products.Â
Other names SAE-AISI 8640 steel, SNCM240, and G86400.Â
- Forged bars and flanges
- Forged valves, tubes, and fittings
- Forged fasteners
- Forged rings