Alloy Information for AISI 1050 Carbon Steel
0.48 – 0.55
0.60 – 0.90 max
General Characteristics of AISI 1050
C1050 is a medium carbon, medium tensile steel with good strength, toughness and wear resistance.
C1050 is a versatile medium carbon engineering steel that can be through hardened to a little over 2.5” (63mm), as well as being flame or induction hardened to Rc61. The steel can be readily welded and machined providing correct procedures are followed.
Forging AISI 1050 Carbon Steel
C1050 is forged from 2100 – 2300 º F (1150 – 1280 º C) down to a temperature in the range 1600 – 1700 º F ( 870 – 925 º C.). The actual forging and finishing temperatures will depend on a number of factors, including overall reduction during forging and complexity of part being forged. Experience alone will determine near exact values for these two parameters. Parts are air cooled after forging.
Applications of AISI 1050
This grade of steel is used for the manufacture of forged shafts and gears and for a wide range of applications that can make use of its good combination of mechanical properties.
Heat treatment is carried out on this grade to render it suitable for machining and to impart to it specified mechanical properties.
Full annealing of small C1050 forgings is carried out between 1450 and 1600 º F (790 – 870 º C) followed by furnace cooling at 50 º F (10 º C) per hour, to 1200 º F (650 º C) and air cooling.
The normalizing temperature range for this grade is typically 1550 – 1600 º F (840 – 870 º C,) Normalizing is followed by cooling in still air. When forgings are normalized before hardening and tempering or other heat treatment, the upper range of the normalizing temperature is used. When normalizing is the final treatment, the lower temperature range is used.
Hardening of this grade is carried out from an austenitizing temperature of 1500 – 1600 º F (820 – 870 º C) followed by oil or water quenching.
Flame and induction hardening may be carried out by heating quickly to the desired case depth and quenching in water or oil. This should be followed by a tempering treatment at 300 – 400 º F (150 – 200 º C) to reduce stresses in the case, without affecting its hardness. A surface hardness as high as Rc 61 may be obtained from C1050 by this treatment.
Tempering after normal hardening and oil or water quenching is carried out at 750 – 1260 º F (400 – 680 º C) to give the required mechanical properties as determined by practical experience.
Machinability of C1050 is good providing the full annealing cycle described above is used, A coarse lamellar pearlite to coarse spheroidite microstructure gives optimum machinability in C1050.
This grade is readily welded with the correct procedure. Welding in the through hardened or flame or induction hardened conditions is not recommended.
Low-hydrogen electrodes are recommended together with preheat at 300 – 800 º F (150 – 430 º C.) to be maintained during welding, Cool slowly in sand or ashes and stress relieve where possible. It may be that in certain instances normalizing may be called for after welding.
To Send a Request for Quote, please Click Here, or call 1.973.276.5000 or 1.800.600.9290 or fax 1.973.276.5050.