high quality chrome steel ball AISI52100 5/16" G10-G1000

Specifications 1) Raw material traceability 2) Steady heat treatment technology 3) High precision (good roundness/roughness/hardness)     Our company is focus on the production of bearing steel ball,we also product other kinds of steel balls,such as stainless steel ball,carbon steel ball and so on.       The following table describes the related technical data and product performance of the Chrome steel ball.      

Changzhou Oriental High-Tech Steel Ball Co.Ltd
Chrome steel ball
Material Specification	C	Cr		Mn	Si	P	S
	0.95-1.10%	1.30-1.60 %		0.25%Max	0.15-0.3%	0.03% Max	0.025%Max
Mechancial Properties	Tensile Strength			Yield Strength		Density
	325,000 psi			295,000 psi		0.283 lbs/cu in
Size Range	0.8mm(1/32") to 63.5mm(2-1/2")
Hardness	HRC60~66
Grade	G10~G1000
Physical Property	No Corrosion resistance ,Magnetic
Application	Universal for many applications. For example: balls & roller bearings, Linear monition, Balls lead screws, grinding media
Material Conversion	ASTM/AISI		DIN			YB	JIS
	E52100		100Cr6		1.3505	GCr15	SUJ2

    About technical process       Our products from raw materials to finished products would take about nine steps:   1. Raw material: a ball starts in wire or rod form.   2. Heading: In the first step, heading machines cut wire into short lengths and form   it into spherical shapes between dies.   3. Flashing: A process that gives a ball blank a rough finish and removes the excess   material around the ball.   4. Heat-treating: Harden the balls by subjecting a metal or alloy to controlled heating   and cooling to improve hardness and other properties.   5. Hard Grinding: Slow, meticulous grinding assures proper sizing and sphericity.   6. Lapping: This process has two steps, first is simple lapping, then is fine grinding.   Both of them is to polish the balls to a shiny finish and to the exact size required by ISO 3290 Grade.   7. Clean: First, clean the surface of balls; then use the dehydrated oil to dry off the balls; the last step is applying antirust oil for the balls. When these steps have done, each ball will be selected by machine or naked eye to make sure every ball is perfect.   8. Inspection: Each batch of products will accept measurement and inspection by the special inspectors, to check whether the products consistent with the customer's requirement.   9. Packing: The balls are packed in anti-oxidant or oiled paper, in cardboard boxes of standard size with fixed quantities, finally in pallet or wooden cases. Packing will be Sea & Air worthy. Special packaging can be provided on request.     About Certificate   1)  We have attained ISO9001: 2008 Certificate and Global Manufacturer Certificate.   TUV of Germany have audited our plant and we get the GMC Certificate.       2) All of our measuring implement authorized by the third party inspection institution and attained Certificates.           About Produce       We have advanced machine, well-rounded technology and professional staff.       About Inspection equipment               We have full equipped inspection equipment and all of them  are authorized by the third party. And each batch of product should inspection by professional.       About Product data       The following is the picture about the product data. (If you can not read the following pictures clearly, we can offer the much clearer one, just contact with us.)