3.5mm 0.137inch AISI440c Stainless Steel Balls for Contact Balls 0.174G

3.5mm 0.137inch AISI440c Stainless Steel Balls for Contact Balls 0.174G

Creation Description

They display great mechanical traits, toughness and corrosion resistance. AISI 304L supplies lower carbon articles, AISI 302 far better mechanical traits. Balls are supplied in the passivated problem.


Stainless metal balls are broadly used in bearings, automobiles, bikes, bicycles, household appliances, chemical equipment, textile equipment, meals equipment, mining equipment, devices, and other fields.

Chemical composition 

Kind %C %Si %Mn %P %S %Cr %Ni %N
302 .150 max one.00 max two.00 max .045 max .030 max 17.00-19.00 eight.00-10.00 .a hundred max
304 .080 max .seventy five max two.00 max .045 max .030 max eighteen.00-twenty.00 eight.00-10.50 .a hundred max
304L .030 max .seventy five max two.00 max .045 max .030 max eighteen.00-twenty.00 8.00-10.50 .one hundred max

CZPT standards 

ITA United states of america GER FRA Uk RUS CHN JAP
X10CrNi18-8 302 1.4310 Z11CN18-08 301S21 12KH18N9 1Cr18Ni9 SUS301
X5CrNi18-ten 304 one.4301 Z7CN18-09 304S15 08KH18N10 0Cr18Ni9 SUS304
X2CrNi18-9 304L 1.4307 Z3CN18-ten 304S11 04KH18N10 00Cr19Ni10 SUS304L

Bodily / mechanical / thermal / electric powered / magnetic properties 

House Symbol U.o.M. Sort Notes Values
Density δ [g/cm3] Bodily Place temp. seven.ninety five
Young’s modulus E [GPa] Mechanical two hundred
Particular heat c [J/kg-K] Thermal Place temp. five hundred
Coefficient of linear thermal growth α [ten^-6/ºC] Thermal (ΔT=-100°C) seventeen.5
Thermal conductivity λ [W/(m·K)] Thermal Place temp. 15.eight
CZPT resistivity ρ [Ω*m*10^-9] CZPT 710
Relative magnetic permeability µ Magnetic Paramagnetic 1.571*

CZPT data 

House Variety U.o.M. Values U.o.M. Values
Hardness Mechanical [HRC] twenty – 39 (1)* [HV] 100 – 250 (2)*
Ultimate tensile strength Mechanical [MPa] 500 – 1300 [psix10^three] seventy two – 188
Service temperature Thermal [ºC] -196 / 700 [ºF] -320.8 / 1697

Corrosion Resistance 
Really good corrosion resistance with regard to natural and organic substances, oxidating solutions, foodstuff, sterilizing answers. Excellent resistance with respect to atmospheric corrosion and dyes. They are subjected to pitting and crevice corrosion in existence of scorching chloride answers and to tension corrosion when temperature exceeds 60°C. They do not resist to sulfuric acid remedies. AISI 302 exhibits marginally greatest corrosion resistance with respect to AISI 304/304L stainless steels.


Property  Description
Hardness* Balls can be equipped in the (1) Chilly Worked (HRC 20-39, normal solution) or (two) ANNEALED (HV 100-250, on desire) situations.
Magnetism Eventual magnetism of AISI 316 balls and in basic of all austenitc stainless steels strictly is dependent by the production procedure, particular inquiries for not magnetic balls must priorly described.
Precision Grade** On specifical request and for big portions, we can supply G10 and G16 precision quality balls. Diameters from three.000 mm to one/2″.
Precision Quality** On specifical ask for we can offer G20-24-twenty five-28-forty-forty eight-50-sixty-80 precision grade balls.

Other Goods


Generation Method

Company Details

ZheJiang Jinnai CZPT Trade Co.,Ltd. is one of the professional manufactures which specialize in the metal ball,like carbon

steel balls,stainless steel balls ,bearing chrome steel balls ,hollow metal balls ,iron balls ,magnetic buckyballs ,ball related products

such as ball cage or ball retainers, silicone balls ,plastic balls .ect…



Q:Do you supply samples before order? is it free of charge or extra ?
A: Sure, we could supply the sample ,But additional.or we can go over
Q:Can you do CZPT design and style ?
A: Indeed,we can do customizes design,you just give us your layout,picture,layout,measurement and your required.
Q:What is your phrases of payment ?
A: Payment: thirty% T/T in progress ,stability just before cargo.

3.5mm 0.137inch AISI440c Stainless Steel Balls for Contact Balls 0.174G


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