S-2 Tool Steel Balls (ROCKBIT)

S-2 Tool Steel Balls are hardened throughout and have unusually good wear characteristics. These balls are intended for applications that require extreme toughness and strength. They provide good service in withstanding the abrasion, high shock resistance, severe pressure impact, etc.

We stock a complete line of Rockbit balls in various diameters. Rockbit Balls are designed for extreme ruggedness. The balls are made from S-2 tool steel and specially heat treated to provide excellent hardness and wear resistance combined with toughness and impact resistance to survive extreme shock loads found in the drilling industry.

Material	AISI	Federal	Military	ASTM	UNS	AMS	Military & Gov't Stds.
S-2 Tool
Steel	S-2	QQ-T-570	—	ASTM-A681	T-41902	—	—

 

Material Analysis S-2 Tool Steel (Rockbit) balls are manufactured to the following chemical analysis:
Mechanical Properties	Chemical Analysis
Hardness as measured on ball surfaces is Rockwell "C"55-60. Density: 0.283 lbs/cu. in.	Carbon Manganese Silicon Molybdenum Phosphorus Sulphur Cromium Nickel Copper Vanadium	0.47% to 0.52% 0.40% to 0.50% 0.90% to 1.10% 0.45% to 0.50% 0.025% maximum 0.025% maximum 0.20% maximum 0.25% maximum 0.25% maximum 0.5% maximum