5.0mm 0.196inch AISI304 Stainless Steel Balls for Seat Rail 0.509g

 Manufacturing Description

They show great mechanical qualities, toughness and corrosion resistance. AISI 304L offers lower carbon material, AISI 302 better mechanical attributes. Balls are offered in the passivated issue.


Stainless steel balls are widely used in bearings, automobiles, bikes, bicycles, house appliances, chemical equipment, textile equipment, food equipment, mining machinery, devices, and other fields.

Chemical composition 

Type %C %Si %Mn %P %S %Cr %Ni %N
302 .a hundred and fifty max one.00 max 2.00 max .045 max .030 max 17.00-19.00 eight.00-ten.00 .one hundred max
304 .080 max .seventy five max two.00 max .045 max .030 max eighteen.00-twenty.00 eight.00-10.50 .one hundred max
304L .030 max .seventy five max 2.00 max .045 max .030 max 18.00-20.00 8.00-ten.fifty .a hundred max

CZPT standards 

ITA Usa GER FRA United kingdom RUS CHN JAP
X10CrNi18-8 302 one.4310 Z11CN18-08 301S21 12KH18N9 1Cr18Ni9 SUS301
X5CrNi18-ten 304 one.4301 Z7CN18-09 304S15 08KH18N10 0Cr18Ni9 SUS304
X2CrNi18-9 304L 1.4307 Z3CN18-10 304S11 04KH18N10 00Cr19Ni10 SUS304L

Bodily / mechanical / thermal / electric powered / magnetic properties 

Home Image U.o.M. Variety Notes Values
Density δ [g/cm3] Physical Space temp. 7.95
Young’s modulus E [GPa] Mechanical two hundred
Distinct warmth c [J/kg-K] Thermal Place temp. five hundred
Coefficient of linear thermal expansion α [ten^-6/ºC] Thermal (ΔT=-100°C) 17.five
Thermal conductivity λ [W/(m·K)] Thermal Space temp. 15.8
CZPT resistivity ρ [Ω*m*10^-nine] CZPT 710
Relative magnetic permeability µ Magnetic Paramagnetic 1.571*

CZPT data 

Residence Kind U.o.M. Values U.o.M. Values
Hardness Mechanical [HRC] 20 – 39 (one)* [HV] 100 – 250 (2)*
Ultimate tensile energy Mechanical [MPa] five hundred – 1300 [psix10^3] seventy two – 188
Support temperature Thermal [ºC] -196 / seven hundred [ºF] -320.eight / 1697

Corrosion Resistance 
Quite good corrosion resistance with regard to organic and natural substances, oxidating solutions, foodstuff, sterilizing solutions. Excellent resistance with respect to atmospheric corrosion and dyes. They are subjected to pitting and crevice corrosion in presence of hot chloride remedies and to stress corrosion when temperature exceeds 60°C. They do not resist to sulfuric acid remedies. AISI 302 exhibits somewhat ideal corrosion resistance with regard to AISI 304/304L stainless steels.


Property  Description
Hardness* Balls can be provided in the (one) Cold Worked (HRC 20-39, standard merchandise) or (two) ANNEALED (HV a hundred-250, on need) problems.
Magnetism Eventual magnetism of AISI 316 balls and in general of all austenitc stainless steels strictly depends by the production procedure, certain inquiries for not magnetic balls must priorly described.
Precision Quality** On specifical ask for and for massive quantities, we can offer G10 and G16 precision quality balls. Diameters from 3.000 mm to one/2″.
Precision Grade** On specifical ask for we can offer G20-24-25-28-40-forty eight-fifty-60-eighty precision quality balls.

Other Products


Production Method

Firm Information

ZheJiang Jinnai CZPT Trade Co.,Ltd. is a single of the specialist manufactures which specialize in the steel ball,like carbon

metal balls,stainless metal balls ,bearing chrome metal balls ,hollow steel balls ,iron balls ,magnetic buckyballs ,ball relevant goods

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



Q:Do you provide samples prior to purchase? is it free or extra ?
A: Yes, we could offer the sample ,But further.or we can talk about
Q:Can you do CZPT style ?
A: Indeed,we can do customizes design and style,you just give us your design and style,photo,structure,dimensions and your essential.
Q:What is your conditions of payment ?
A: Payment: thirty% T/T in advance ,equilibrium ahead of shipment.

5.0mm 0.196inch AISI304 Stainless Steel Balls for Seat Rail 0.509g