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0.5mm-50.8mm AISI 440C STAINLESS STEEL BALLS

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price:	Negotiable
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Total supply:
Delivery term:	The date of payment from buyers deliver within days
seat:	Beijing
Validity to:	Long-term effective
Last update:	2017-12-24 12:48
Browse the number:	73

Company Profile

Lishui Bearing Trade Co., Ltd.
By certification [File Integrity]
Contactlbtcl1662(Mr.)
telephone
AreaBeijing
AddressNo.11 Shiting Road, Shuige Industrial Zone,Lishui, Zhejiang,China
Website:http://lbtcl1662.taikoohk.com/

Product details

Product Model:	AISI 440C
Structure:	0.5mm-50.8mm
Inside Diameter:	0.5 mm
Outside Diameter:	1.8 mm
Thickness:	50.8 mm
Seals Type:	non heat treatment
Material:	ss440c stainless steel
Precision Rating:	G5-G1000
Brand:	HRT
Weight:	TBD KG
Payment term:	TT, WESTERN UNION
Delivery time:	in 30 days

AISI 440C STAINLESS STEEL BALLS

Size: 0.5mm-50.8mm

Grade: G5 to G1000

Martensitic stainless steel balls, they are characterized by remarkable hardness, wear resistance, surface finishing, narrow dimensional tolerances. For that reason this type of steel is frequently used in precision devices. Balls are provided in the passivated state.

Applications

Precision bearings, anti-friction bearings, special valves, conveyor belts and rollers, ballpoint pens. They are used in foodstuff, medical instruments, quick couplings, recirculating ball bearings, knotting devices, oil refinery devices.

Chemical composition (%)

%C	%Si	%Mn	%P	%S	%Cr	%Mo
0.95-1.20	1.00 max	1.00 max	0.040 max	0.030 max	16.00-18.00	0.75 max

International standards

ITA	USA	GER	FRA	UK	RUS	CHN	JAP
X 105CrMo17	440C	1.4125	Z100CD17	-	95X18	9Cr18Mo	SUS440C

Physical / mechanical / thermal / electric / magnetic properties

Property	Symbol	U.o.M.	Type	Notes	Values
Density	δ	[g/cm3]	Physical	Room temp.	7.75
Young's modulus	E	[GPa]	Mechanical	-	210
Specific heat	c	[J/kg-K]	Thermal	Room temp.	450
Coefficient of linear thermal expansion	α	[10^-6/ºC]	Thermal	(ΔT=0-100°C)	10.2
Thermal conductivity	λ	[W/(m·K)]	Thermal	Room temp.	19.6
Electric resistivity	ρ	[Ωm10^-9]	Electric	-	680
Relative magnetic permeability	µ	-	Magnetic	Ferromagnetic	> 700

Technical characteristics of balls

Property	Type	U.o.M.	Values	U.o.M.	Values
Hardness	Mechanical	[HRC]	58 - 65	-	-
Ultimate tensile strength	Mechanical	[MPa]	1900 - 2000	[psix10^3]	275 - 290
Service temperature	Thermal	[ºC]	0 - 400	[ºF]	32 - 752

Corrosion Resistance

The material resists to corrosion in contact with freshwater, steam, oil, petrol, alcool. They are subjected to pitting corrosion in sea water environments. Poor corrosion resistance in acid environments.

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