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STEEL BALL PRECISION GRADE

GRADE	VDWS BALL DIAMETER VARIAT ION	SPH DEVIATION FROM SPHERICAL FORM	VDWL LOT DIAMETER VARIATION	RA MAXIMUM SURFACE ROUGHNESS
G5	0.13	0.13	0.25	0.014
G10	0.25	0.25	0.5	0.020
G16	0.4	0.4	0.8	0.025
G20	0.5	0.5	1	0.032
G24	0.6	0.6	1.2	0.040
G28	0.7	0.7	1.4	0.050
G40	1	1	2	0.060
G60	1.5	1.5	3	0.080
G100	2.5	2.5	5	0.100
G200	5	5	10	0.150
G500	12.5	12.5	25
G1000	25	25	50

STAINLESS STEEL CHEMICAL COMPOSITION

MATERIAL CODE	CHEMICAL COMPOSITION(%)
AISI	C	Si	Mn	P	S	Cr	Ni	Mo	other
302	≤0.15	≤1.00	≤2.00	≤0.045	≤0.030	17.00-19.00	8.00-10.00	__	__
304	≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	18.00-20.00	8.00-10.50	__	__
316L	≤0.030	≤1.00	≤2.00	≤0.045	≤0.030	16.00-18.00	10.00-14.00	20.00-3.00	__
420	≤0.15	≤1.00	≤1.00	≤0.040	≤0.030	12.00-14.00	__	__	__
430	≤0.12	≤1.00	≤1.00	≤0.040	≤0.030	16.00-18.00	__	__	__
440C	0.95-1.20	≤1.00	≤1.00	≤0.040	≤0.030	16.00-18.00	__	≤0.75	__

STEEL BALL CONVERSION TABLE

DIAMETER		KILO PER 1000 PIECES(KG)	PIECES PER KILO
IM	MM	KILO PER 1000 PIECES(KG)	PIECES PER KILO
1/16	1.588	0.016	62350
	1.75	0.0218	45871
	2	0.0326	30700
3/32	2.381	0.055	18182
	2.5	0.0637	15698
	3	0.110	9091
1/8	3.175	0.131	7634
	3.5	0.175	5717
5/32	3.969	0.255	3922
	4	0.261	3831
3/16	4.763	0.441	2268
	5	0.510	1961
13/64	5.159	0.0560	1786
7/32	5.556	0.699	1431
15*64	5.953	0.860	1163
	6	0.0881	1136
1/4	6.35	1.04	962
9/32	7.144	1.49	671

DIAMETER		KILO PER 1000 PIECES(KG)	PIECES PER KILO
IM	MM	KILO PER 1000 PIECES(KG)	PIECES PER KILO
5/16	7.938	2.04	490
	8.5	2.50	400
11/32	8.731	2.71	369
3/8	9.525	3.52	284
13/32	10.319	4.48	223
	11	5.429	184
7/16	11.113	5.60	179
29/64	11.509	6.22	161
15/32	11.906	6.88	145
1/2	12.7	8.355	120
17/32	13.494	10.02	100
	15	13.77	72.6
19/32	15.081	13.77	72.6
5/8	15.875	16.32	61.3
	16	16.71	59.8
	19	27.98	35.7
3/4	19.05	28.20	35.5
1	25.4	66.84	15.5

We can OEM all Steel balls and shots according to your requirement,please contact us for detail.