Chrome VAC-ARC

Balls: Chrome Steel (52100) (Cr100)
Material	Size Range	Grade
Chrome CVM	0.025 - 1” (0.025 - 25.400 mm)	3 - 1000

Chrome 52100 VAC-ARC steel balls are widely used in aerospace applications. Chrome 52100 VAC-ARC is a deep hardening alloy steel used for aircraft bearings and other high stressed parts where good rolling contact fatigue strength is required at operating temperatures below 400°F. This grade is produced by the vacuum-arc remelting process and offers greatly improved cleanliness and internal soundness over conventionally air melted bearing quality SAE 52100 steel.

Small size balls are made from wire stock while larger size balls are hot forged from bar stock. Modern furnaces with precisely controlled atmospheres and temperatures are used for heat treating to assure uniform hardness and proper microstructure for each chrome steel ball. Throughout the manufacturing process, statistical process control assures tolerance accuracy, fine surface finish and consistent high quality

Material Analysis:
Chrome balls are made from the following special chemical analysis.
All sizes and grades are manufactured from AISI Type 52100 steel.

Material	AISI	Military	ASTM	UNS	AMS	DIN	JIS/SUJ
Chrome Steel	52100	MIL-S-980	A295 A-535	6440E G-52986	6440 6444	100Cr6 1.3505	G4805-SUJ2

Chemical Analysis

Carbon0.93% to 1.05%
Chromium1.30% to 1.60%
Manganese0.25% to 0.45%
Silicon0.15% to 0.35%
Sulphur0.008% to maximum
Phosphorus0.020% to maximum

Mechanical Properties

Chrome steel balls are uniformly hardened and tempered throughout their entire diameter to achieve maximum strength and quality. Ball hardness is controlled within the 60-67 HRC range as measured on parallel flat surfaces. Custom heat treating is available for special hardness and dimensional stability requirements.

Tensile strength325,000 psi
Yield strength295,000 psi
Elongation in two inches5%
Reduction in area8%
Modulus of elasticity29,500,000 psi
Density0.283 lbs/cu.in.

Chrome 52100 VAC-ARC Stainless Steel