This page displays the Steel Balls Grade Standards, Steel balls diameter tolerance,

Spherical deviation, Surface roughness of steel balls, Steel balls batch diameter variation,

Basic diameter tolerance, Commonly Used Gauge Values & Subdivision Gauge Values.

 

This page displays different steel balls material names in different countries and standards,

the material of steel balls has different names in different countries and different material

standards, Including stainless steel balls, chrome steel balls, carbon steel balls.

Counting these names together is more conducive to us confirming material requirements.

 

 

The below table displays different steel balls material names in different countries:

 

Comparison Table of Steel Balls Materials
Country / Standard		Chrome Steel Balls	Carbon Steel Balls				Stainless Steel Balls
America	AISI	52100	1010	1015	1045	1085	302	304	316	420	440C
China	YB	GCr15	10	15	45	85	1Cr18Ni9	0Cr19Ni9	0Cr17Ni12Mo2	3Cr13	9Cr18
Japan	JIS	SUJ2	S9CK	S15CK	S45C	SUP3	SUS302	SUS304	SUS316	SUS420J2	SUS440C
Germany	DIN	100Cr6	CK10	CK15	CK45		X12CrNi188	X5CrNi189	X5CrNiMn18	X30Cr13
		1.3505					1.4300	1.4301	1.4401	1.4028

 

 

 

The below table displays the Steel Balls Grade Standards:

 

Steel Balls Diameter Tolerance Grade Standard
Grade	Diameter variation	Spherical deviation	Surface roughness	Batch diameter variation	Basic diameter tolerance
	Vdws	△sph	Ra	Vdwl	Tdn
	Not More Than
	μm
10	0.25	0.25	0.025	0.5	*
16	0.4	0.40	0.032	0.8	*
20	0.5	0.50	0.04	1	*
28	0.7	0.70	0.05	1.4	*
40	1.0	1.00	0.08	2	*
60	1.5	1.50	0.10	3	*
100	2.5	2.50	0.125	5	+/-12.5
200	5	5	0.2	10	+/-25
500	13	13	*	25	+/-50
1000	25	25	*	50	+/-125
* It means not applicable

 

Steel Balls Batch Diameter Variation Commonly Used Gauge Values & Subdivision Gauge Values
Grade	Batch Diameter Variation	Vertical Spacing	Commonly Used Gauge Values	Subdivision Gauge Values	Subdivision Gauge Values
	μm
10	0.5	1	-9,...,-1,0,+1,...+9	0.2	-0.4,-0.2,0,+0.2,+0.4
16	0.8	2	-10,...,-2,0,+2,...+10	0.4	-0.8,-0.4,0,+0.4,+0.8
20	1	2	-10,...,-2,0,+2,...+10	0.4	-0.8,-0.4,0,+0.4,+0.8
28	1.1	2	-12,...,-2,0,+2,...+12	0.4	-0.8,-0.4,0,+0.4,+0.8
40	2	4	-16,...,-4,0,+4,...+16	0.8	-1.6,-0.8,0,+0.8,+1.6
60	3	5	-20,...,-5,0,+5,...+20	1	-2,-1,0,+1,+2

 

In the procurement of steel balls, in order to ensure the accuracy of product requirements,

it is necessary to provide as many detailed requirements as possible,

such as material name, chemical analysis, hardness, grade requirements,

diameter tolerance, batch diameter tolerance, roundness requirements, etc.

Different uses have different material requirements,

Different uses have different grade requirements.

For any technical support, please contact SOYA Steel Ball Factory.

 

 

 

Tell us your balls requirements, the offer will be send you at the first time.

E-mail: bevan@soya-steelball.com