STEEL BARS

CASE-HARDENING STEEL

Commonly used to enrich the surface carbon content of steel that case hardening provides. This is intended to produce a high-hardness, wear-resistant surface supported by a tenacious core.

Steel 4320

CHARACTERISTICS

Intermediate Carburizing Depth.

APPLICATIONS

Gears for cars and tractors, universal joints and drive chains for machines.

SIMILAR MATERIALS

COPANT 4320; SAE 4320; AISI 4320; UNS G43200; DIN 15CrNi6 (1.5919); AFNOR NC 6;

Chemical Composition (% BY WEIGHT)

C	Mn	P	S	Si	Ni	Cr	Mo	V
0,17 – 0,22	0,45 – 0,65	0,030	0,040	0,15 – 0,35	1,65 -2,00	0,40 – 0,60	0,20 - 0,30	-

THERMAL TREATMENT AND PROCESSING TEMPERATURES (°C)

Forging - Max.	Reheating	Normalization	Quenching	Quenching Medium	Case Hardening	Tempering
1.100 – 850	830 - 860	900 - 955	815 - 845	watter	900 - 925	150 - 200

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