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Introduction to Bearings

What is the Composition of 420 Stainless Steel?

What is the Composition of 420 Stainless Steel?

  • 2021/07/14

SUS440C Stainless steel

Material    Specification C Cr Mn Si P S Mo
0.95-1.20% 16-18% 1.0%Max 1.0%Max 0.04%Max 0.03%Max 0.75%Max

Mechancial

Properties

Tensile Strength 285,000 psi
Yield Strength 275,000 psi
Density 0.277 Ibs/cu in

Physical

Property

Corrosion resistance Fair
Magnetic Yes
Size Range 0.8mm  ( 1/32" )    to    63.5mm   ( 2-1/2" )
Hardness HRC  ≥ 58
Grade G10  -  G1000
Application Type 440C balls are used in bearings , valves , locking mechanisms , fasteners and quick-disconnect couplings .

Material

Conversion

ASTM / AISI YB JIS
440C 9Cr18Mo SUS440C

SUS420 Stainlesss steel ball

Material    Specification C Cr Mn Si P S
0.15-0.36% 12-14% 1.0%Max 1.0%Max 0.04%Max 0.03%Max

Mechancial

Properties

Tensile Strength 275,000 psi
Specific Weight 0.280 Ibs/cu in

Physical

Property

Corrosion resistance Fair
Magnetic Yes
Size Range 0.8mm  ( 1/32" )    to    63.5mm   ( 2-1/2" )
Hardness HRC  50-55
Grade G10  -  G1000
Application Type 420 balls are found in bearings, valves, lighters and writing instruments.

Material

Conversion

ASTM / AISI YB JIS DIN
420 3Cr13 SUS420J2 1.4028

SUS316 Stainless steel ball

Material    Specification C Cr Mn Si P S Mo
0.08%Max 16-18% 2.0%Max 1.0%Max 0.045%Max 0.03%Max 2-3%Max

Mechancial

Properties

Tensile Strength 180,000 psi
Yield Strength 150,000 psi
Density 0.290 Ibs/cu in

Physical

Property

Corrosion resistance Excellent
Magnetic No
Size Range 0.8mm  ( 1/32" )    to    63.5mm   ( 2-1/2" )
Hardness HRC  ≤ 26
Grade G100  -  G1000
Application Type 316L balls are used in trigger sprayers, bearings, dispenser valves, body jewelry, lotion pumps, quick-disconnect couplings and aerospace applications.

Material

Conversion

ASTM / AISI YB JIS DIN
316 0Cr17Ni12Mo2 SUS316 1.4401

SUS304 Stainless steel ball

Material    Specification C Cr Mn Si P S Ni
0.08%Max 18-20% 2.0%Max 1.0%Max 0.045%Max 0.03%Max 8-10%

Mechancial

Properties

Tensile Strength 100,000 - 180,000 psi
Yield Strength 50,000 - 150,000 psi
Density 0.286 Ibs/cu in

Physical

Property

Corrosion resistance Good
Magnetic Slighty  ( Demag process avaibalbe )
Size Range 0.8mm  ( 1/32" )    to    63.5mm   ( 2-1/2" )
Hardness HRC  ≤ 26
Grade G40  -  G1000
Application Type 304 balls are used in aerosol and dispenser valves , medical applications , animal feeders , trigger sprayers , finger pumps and food processing .

Material

Conversion

ASTM / AISI YB JIS DIN
304 0Cr19Ni9 SUS304 1.4301

MKL BEARINGS can produce with stainless steel balls and rollers with customized dimension ,welcome with your enquiry .

steel rollers
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