Stainless Steel Balls Chart

Friday July 30th, 2010

Material Analysis	18-8 AISI	316 AISI	Carpenter 20Cb-3	440C AISI
Carbon	0.08%	0.08%	0.06%	0.95/1.20%
Manganese	--	2.00% max.	2.00% max.	1.00% max.
Phosphorus	--	0.045% max.	0.035% max.	0.04% max.
Sulfur	--	0.030% max.	0.035% max.	0.03% max.
Silicon	--	1.00% max.	1.00% max.	1.00% max.
Nickel	8.00/10.00%	10.00/14.00%	32.50/35.00%	--
Chromium	17.00/19.00%	16.00/18.00%	19.00/21.00%	16.00/18.00%
Molybdenum	--	2.00/3.00%	2.00/3.00%	0.75% max.
Copper	--	--	3.00/4.00%	--
Columbium + Tantalum	--	--	8xC min./1.00 max.	0.75% max.

Physical Properties
Specific Gravity	8.03	7.95	8.08	7.75
Density	0.286 lbs/in.³	0.287 lbs/in.³	0.292 lbs/in.³	0.28 lbs/in.³

Mechanical Properties
Tensile Strength	85 Kpsi	82 Kpsi	90 Kpsi	285 Kpsi
Yield Strength	35 Kpsi	36 Kpsi	46 Kpsi	275 Kpsi
Elongation (3")	60%	69%	45% (2inches)	2%
Reduction of Area	70%	76%	65%	10%
Impact (17.0")	110ft/lbs	240ft/lbs	--	--
Hardness	87R_B	80R_B	86R_B	58R_C (min.)
Stainless Steel Balls Information Page

Stock Availability

		Available Stock Sizes	Roundness Dia. Tol/Ball	Basic Dia. Tolerance	Surface Finish
Material	Ball Grade	Inches	Inches	Inches	Micro Inch
316	50V	1/8 - 3/4"	.000050	ą.001	5
316	100V	7/8 - 1 7/8"	.0001	ą.002	8
S.S. 440C	25	1/8 - 1.0"	.000025	ą.001	1.5
Carp 20C	50V	1/8 - 5/8"	.000050	ą.001	5
Carp 20C	100V	3/4 - 1 7/8"	.0001	ą.002	8
Types of Stainless Steel Balls			Stainless Steel Balls Information Page

Industrial Tectonics Inc. | 7222 W. Huron River Drive | Dexter, MI 48130
Phone: 734-426-4681 | Toll Free: 866-816-8904