What is the Composition of 420 Stainless Steel?

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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 .

E-mail :info@bearings-factory.com

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