18mm Steel Ball

  • Description
Product Detail

18mm steel ball

Size: 2.0mm to 50.8mm

Grade: G10

Hardness: HRC58-62

Certificate: ISO-9001, TS-16949, ISO-14001

Application: Bearings

Brief Introduction

Miniature balls are those that are less than 1/8" (3 mm) in diameter. Some of their key applications include instrumentation for calibration and switching, valves, pumps, medical and dental equipment, optical devices, ball screws, timepieces, metal detectors and disk drives.

AISI 420C

GRADES: 

25, 50, 100, 500, 1000, 2000

CHEMICAL COMPOSITION 

CHROMIUM

12%-14%

CARBON

0.15% MAX.

NICKEL

MANGANESE

1% MAX.

SILICON

1% MAX.

PHOSPHOROUS

0.040% MAX.

SULPHUR

0.03% MAX.

MECHANICAL PROPERTIES 

HARDNESS ROCKWELL

48 MIN.

TENSILE STRENGTH 

95,000-250,000 PSI 

ELONGATION IN TWO INCHES 

8%-25%

REDUCTION IN AREA 

25%-50%

MODULUS IN ELASTICITY 

29,000,000 PSI 

DENSITY

0.279 LBS./CU. IN. 

PHYSICAL CHARACTERISTICS 


CORROSION RESISTANCE 

FAIR

MAGNETIC

YES

GENERAL USAGE 


BEARINGS, VALVES, LIGHTERS, WRITING INSTRUMENTS


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