Alloy steel grades are versatile grades that possess overall combinations of toughness, strength, fatigue strength and wear resistance.
Alloy steel grades mostly have reasonable strength up to high temperatures at around 600o and even above as well as excellent atmospheric corrosion resistance. These alloy grades are almost ideal for multiple forgings to form very accurate sizes that are intended for a specific application. It is best advisable to forge certain alloy steel grades that are not below 1600o.
Alloy steel grades mainly fit for various applications like aerospace, agricultural and defense industries, myriad uses in automotive, gas industries, typical uses in shafts, spindles, and forged gears.
In addition, with its featured properties, alloy steel grades can undergo a lot of machining operations and conditions:
- Heat Treatment
Their machinability is highly permitted with its optimum structure. Since alloy steel grades possess good weldability, they can be forged easily through any commercial methods.
|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|