High Carbon Steel Ball

This ball type offers a remarkable advantage in terms of whole hardness index, which is about 60/62 HRC and grants a higher wear and load resistance compared to common carbon hardened steel balls. Moreover high carbon steel balls are cheaper than chrome steel balls UNI 100 Cr6 and perfectly suitable for various industrial applications, which don’t require the use of the latter.

International Equivalent Standard AISI 1070/1085--B.S EN-8 EN-9 --C70/C80

Specification

Size Range Standard Grades Application
1MM-150MM G40-1000 Bike’s accessories, furniture ball bearings, sliding guides, conveyor belts, heavy load wheels, ball support units. Low precision bearings, bicycle & automotive components, agitators, skates, polishing and milling machines.

Chemical Composition %

TYPE OF MATERIAL C Si Mn P (MAX.) S (MAX.)
AISI 1070 (C70) 0.65-0.70 0.10-0.30 0.60-0.90 0.04 0.05
AISI 1085 (C85) 0.80-0.94 0.10-0.30 0.70-1.00 0.04 0.05

Mechanical And Physical Properties

SPECIFIC WEIGHT 7.85 kgf/cm3
TENSILE STRENGTH 75 kgf/mm2
YEILD STRENGTH 68 kgf/mm2
MODULUS OF ELASTICITY 20,394 kgf/mm2
MAXIMUM WORKING TEMPERATURE 500 ° C
HARDNESS 59 – 66 HRC (CORE HARDENING)
MAGNETISM MAGNETIC

Crushing Loads

Ball Dia Load Ball Dia Load
1/8” 375 kgs 9/32” 2200 kgs
5/32” 800 kgs 5/16” 2700 kgs
3/16” 1100 kgs 11/32” 3200 kgs
1/4" 1800 kgs 3/8” 3900 kgs
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