AISI 420/420C Steel Balls

Martensitic stainless steel hardened balls offer good mechanical hardness and corrosion resistance. Balls of this material have lower chrome content than 440C and are used in applications where the more rigid corrosion resistance requirements can be relaxed. They have fair resistance to fresh water, steam, oil, gasoline, blood, perspiration, alcohol and food environment. Balls are provided in the passivated condition.

International Equivalent Standard AISI 420,AISI420B, AISI420C UNI X20Cr13, X30Cr13, , X46 Cr13-W1.4021,W 1.4028,W1.4034-JIS SUS420J1,SUS420J2

Specification

Size Range Standard Grades Application
1MM-76.2MM G40-1000 Special bearings, anti-friction bearings, special valves & pumps, lighters, ballpoint pens, automotive seatbelts & components.

Chemical Composition %

Type Of Material C (Max.) Si (Max.) Mn (Max.) P (Max.) S (Max.) Cr (Max.) Ni (Max.)
AISI 420 0.15-0.25 1.00 1.50 0.040 0.03 12.00-14.00 -
AISI 420-B 0.26-0.35 1.00 0.040 0.45 0.03 12.00-14.00 -
AISI 420-C 0.43-0.50 1.00 1.00 0.040 0.03 12.50-14.50 -

Mechanical And Physical Properties

SPECIFIC WEIGHT 7.73 gf/mm3
TENSILE STRENGTH 65 kgf/mm2
YEILD STRENGTH 58 kgf/mm2
Maximum working temperature 400 ° C
HARDNESS
AISI 420 48 - 58 HRC
AISI 420B 50 - 58 HRC
AISI 420C 53 - 60 HRC
MAGNETISM MAGNETIC
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