From 1mm to 150 mm

400 Series Stainless Steel Balls

420 Stainless steel: With good corrosion resistance, higher hardness & magnetic in nature, 420 Steel balls having brighter surface finish finds application in special bearings and valves where corrosion reistance is required along with the wear resistance.

Steel	Symbols		Hardness
420	UNI X20Cr13X1 AISI - 420	AFN. Z20CB B. S. 420S37 DIN 1.4021	52 to 54 HRC

Chemical Composition
C%	Si%	Mn%	P%	S%	Cu%	Cr%	Mo%	Ni%
0.15 MIN	1.0 MAX	1.0 MAX	0.04 MAX	0.03 MAX	-	12.0 14.0	-	-

420 B & 420 C Stainless Steel: Due to the high hardness together with the good resistance against corrosion makes the balls made in this material suitable for valves, special bearings and so on, in which the protectionwith rustproof-greases is poor or absent.

Steel	Symbols		Hardness
420 B	UNI X30Cr13 AISI 420 b W. 1.4028	AFN. Z30c13 B. S. En56 D DIN X30 Cr13	53 to 57 HRC

Chemical Composition
C%	Si%	Mn%	P%	S%	Cu%	Cr%	Mo%	Ni%
0.28 0.35	1.00 MAX	1.50 MAX	0.040 MAX	0.030 MAX	-	12.0 14.0	-	-

Steel	Symbols		Hardness
420 C	UNI X40Cr14 AISI 420 C W. 1.3541	AFN. Z40C13 - DIN X45Cr13	-

Chemical Composition
C%	Si%	Mn%	P%	S%	Cu%	Cr%	Mo%	Ni%
0.42 0.50	1.00 MAX	1.00 MAX	0.040 MAX	0.030 MAX	0.03 MAX	12.5 14.5	-	1.00 MAX

430 Stainless Steel: General purpose non-hardenable steel with good corrosion resistance. These balls find application in cosmetics, petroleum & chemical industry where the corrosion resistance is of prime importance & hardness is secondary.

Steel	Symbols		Hardness
430	UN9I X8Cr17 AISI - 430 -	AFN Z8C17 B. S. 430S15 DIN 1.4016	-

Chemical Composition
C%	Si%	Mn%	P%	S%	Cu%	Cr%	Mo%	Ni%
0.12 MAX	1.00 MAX	1.00 MAX	0.04 MAX	0.030 MAX	-	16-18	-	-

440 B & 440 C Stainless Steel: Having greatest hardness with the highest resistance to corrosion 440 stainless steel balls are the best for application on valves, bearings and ball pens.

Steel	Symbols		Hardness
440 B	- AISI - 430 W. 1.4112	- - DIN 1.4016	55 to 58 HRC

Chemical Composition
C%	Si%	Mn%	P%	S%	Cu%	Cr%	Mo%	Ni%
0.85 0.95	1.00 MAX	1.00 MAX	0.040 MAX	0.030 MAX	-	17.0 19.0	0.90 1.30	-

Steel	Symbols		Hardness
440 C	- AISI 440 C W. 1.4125	- - DIN X105CrMo17	58 to 62 HRC

Chemical Composition
C%	Si%	Mn%	P%	S%	Cu%	Cr%	Mo%	Ni%
0.95 1.20	1.0 MAX	1.00 MAX	0.04 MAX	0.030 MAX	-	16.0 18.0	0.40 0.80	-

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