AISI 1050 is a high-carbon, cold rolled steel containing approximately 0.50% carbon that can be hardened by heat treatment to a maximum hardness of approximately Rockwell C 58. Soft annealed high carbon steel is intended for applications requiring moderate forming, while soft spheroidized annealed product is intended for applications requiring maximum cold forming. The soft spheroidized annealed product is processed to give the lowest hardness for maximum formability. This grade of steel is used for the manufacture of blades, brackets, brake discs, clips, clutches, springs, washers and gears and for a wide range of applications that can make use of its good combination of mechanical properties.
Chemical Composition
Chemical Composition (wt%) limits of AISI 1050 per ASTM A684*
Element : AISI 1050 :
Carbon 0.48-0.55
Manganese 0.60-0.90
Phosphorus 0.03
Sulfur 0.035
Physical Properties
The following table shows the physical properties of AISI 1050 carbon steel.
Properties: Density
Metric: 7.85 g/cm3
Imperial: 0.284 lb/in3
Mechanical Properties
The mechanical properties of the cold drawn AISI 1050 carbon steel are outlined in the following table.
Properties
Tensile strength
Yield strength
Shear modulus (typical for steel)
Bulk modulus (typical for steel)
Elastic modulus
Poisson’s ratio
Elongation at break (in 50 mm)
Reduction of area
Hardness, Rockwell C (converted from Brinell hardness.
Value below normal HRC range, for comparison purposes only)
Hardness, Brinell
Hardness, Knoop (converted from Brinell hardness)
Hardness, Rockwell B (converted from Brinell hardness)
Hardness, Rockwell C (converted from Brinell hardness.
Value below normal HRC range, for comparison purposes only)
Hardness, Vickers (converted from Brinell hardness)
Thermal Properties
The thermal properties of AISI 1050 carbon steel are given in the following table. Properties Metric Imperial
Properties : Thermal conductivity (typical steel)
Metric : 49.8 W/mK
Imperial : 346 BTU in/hr.ft2.°F
