Alloy steel Grades

Mechanical properties of Alloy Steel

Alloy Steel grades are carefully selected and evaluated to fit exact applications specified for their exhibited mechanical properties.

Alloy steel has various grades that are applied mostly in aerospace industries and components for the excellent properties they possess. Alloy steel grades are critically examined and evaluated for their designated applications.

The different mechanical properties found in alloy steel grades may differ to quantity and quality according to number. Many manufacturers and industrial engineers use alloy steel out from a vast number of alloy steel grades, especially in aircraft construction.

Alloy steel is known for its lightweight properties and high corrosion and abrasion resistance that make it withstand even at elevated temperatures.

Steel Purchaser

4120has good tough strength propertiesused for forging applications as forged valve bodies and pumps
4125a chromium-molybdenum alloy steel, displays good strength and toughness propertiesautomotive and engineering gear, engine construction – steering knuckles, forged crankshafts, etc.
4130readily machineable, weldable and ductile, has tough strengthcommercial and military aircraft, machine tools, automotive, hydraulic tools, aerospace, auto racing
4135low-alloy steel, capable of being heat treated and has reasonable toughnessforged shafts, fixtures, collars, jigs, spindles
4140provides good hardness penetration, wear resistant, tough and ductilehighly stressed parts, or components subjected to severe wear
4142medium-carbon steel, readily heated and has tough strengthdie holders, forged gears, collets, spindles, arbors, flanges, axles, clutch parts, etc.
4145a chromium-molybdenum low alloy steel, readily forged, welded, and machineddrill collars, shafts, forged gears, rolls for paper mills, tool holders, and pump shafts
4150low-alloy steel, has good atmospheric corrosion resistance and strengthforgings in the aerospace, gas, and oil industries, forged gears, shafts, and spindles
4340nickel-chromium-molybdenum alloy, has high toughness and fatigue strengthcommercial and military aircraft, machine tool applications, automotive systems, forged steel crankshafts
52100high carbon, chromium alloy steelfor highly stressed parts like aircraft bearing
6150fine-grained carbon-chromium alloy steel, highly abrasion resistantgear and engine construction, forged crankshafts, connecting rods, pump and gear shafts, spindles and steering knuckles
8620most widely used carburizing alloy, has high core strengthforged camshafts, gears, and fasteners
8740nickel-chromium low alloy steel, has tough strength propertieshigh-strength forged fasteners
9310low alloy steel, has good hardenability and fatigue strengthcrankshafts, heavy-duty gear shafts, gears in truck and aircraft construction