Our alloy steel round bar stock contributes so much to the aerospace construction industries and works best in forging operations.
ALLOY TYPE AND GRADES
AIRCRAFT ALLOY STEELS
Alloy steel primarily dominates the action in aerospace construction and framing due to its high strength and lightweight properties.
ALLOY STEEL GRADES
An alloy is a mixture of two or more elements that when mixed continue to retain their metallic properties. Not all of the mixtures have to contain alloys as the constituents don’t react chemically.
- Heat Treatment
ALLOY GRADES TABLE
|ALLOY STEEL GRADE||DESCRIPTION||APPLICATION|
|4120||has good tough strength properties||used for forging applications as forged valve bodies and pumps|
|4125||a chromium-molybdenum alloy steel, displays good strength and toughness properties||automotive and engineering gear, engine construction – steering knuckles, forged crankshafts, etc.|
|4130||readily machineable, weldable and ductile, has tough strength||commercial and military aircraft, machine tools, automotive, hydraulic tools, aerospace, auto racing|
|4135||low-alloy steel, capable of being heat treated and has reasonable toughness||forged shafts, fixtures, collars, jigs, spindles|
|4140||provides good hardness penetration, wear resistant, tough and ductile||highly stressed parts, or components subjected to severe wear|
|4142||medium-carbon steel, readily heated and has tough strength||die holders, forged gears, collets, spindles, arbors, flanges, axles, clutch parts, etc.|
|4145||a chromium-molybdenum low alloy steel, readily forged, welded, and machined||drill collars, shafts, forged gears, rolls for paper mills, tool holders and pump shafts|
|4150||low-alloy steel, has good atmospheric corrosion resistance and strength||forgings in the aerospace, gas, and oil industries, forged gears, shafts, and spindles|
|4340||nickel-chromium molybdenum alloy, has high toughness and fatigue strength||commercial and military aircraft, machine tool applications, automotive systems, forged steel crankshafts|
|52100||high carbon, chromium alloy steel||for highly stressed parts like aircraft bearing|
|6150||fine grained carbon-chromium alloy steel, highly abrasion resistant||gear and engine construction, forged crankshafts, connecting rods, pump and gear shafts, spindles and steering knuckles|
|8620||most widely used carburizing alloy, has high core strength||forged camshafts, gears, and fasteners|
|8740||nickel-chromium low alloy steel, has tough strength properties||high-strength forged fasteners|
|9310||low alloy steel, has good hardenability and fatigue strength||crankshafts, heavy-duty gear shafts, gears in truck and aircraft construction|