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Conpany Profile

6 YRS Zhongshan Qian Run Precision Steel Ball Co.,Ltd

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roy@chnsteelball.com

+8613928150832

Product Details

Find high quality 18mm steel ball with competitive price here. Please rest assured to buy 18mm steel ball with Zhongshan Qian Run Precision Steel Ball Co.,Ltd

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