20.0mm 0.787inch AISI304 Stainless Steel Balls for Engine Push Rod

20.0mm 0.787inch AISI304 Stainless Steel Balls for Engine Push Rod

Production Description

They show excellent mechanical characteristics, toughness and corrosion resistance. AISI 304L gives lower carbon articles, AISI 302 greater mechanical traits. Balls are offered in the passivated issue.


Stainless steel balls are widely employed in bearings, vehicles, motorcycles, bicycles, household appliances, chemical machinery, textile machinery, foodstuff machinery, mining equipment, instruments, and other fields.

Chemical composition 

Type %C %Si %Mn %P %S %Cr %Ni %N
302 .150 max 1.00 max two.00 max .045 max .030 max 17.00-19.00 eight.00-10.00 .100 max
304 .080 max .seventy five max two.00 max .045 max .030 max eighteen.00-20.00 eight.00-10.fifty .a hundred max
304L .030 max .seventy five max two.00 max .045 max .030 max 18.00-20.00 8.00-10.50 .one hundred max

CZPT standards 

ITA Usa GER FRA British isles RUS CHN JAP
X10CrNi18-8 302 1.4310 Z11CN18-08 301S21 12KH18N9 1Cr18Ni9 SUS301
X5CrNi18-10 304 one.4301 Z7CN18-09 304S15 08KH18N10 0Cr18Ni9 SUS304
X2CrNi18-nine 304L one.4307 Z3CN18-ten 304S11 04KH18N10 00Cr19Ni10 SUS304L

Bodily / mechanical / thermal / electrical / magnetic properties 

Home Symbol U.o.M. Sort Notes Values
Density δ [g/cm3] Physical Area temp. seven.95
Young's modulus E [GPa] Mechanical - 200
Distinct warmth c [J/kg-K] Thermal Area 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. fifteen.8
CZPT resistivity ρ [Ω*m*10^-9] CZPT - 710
Relative magnetic permeability µ - Magnetic Paramagnetic 1.571*

CZPT data 

House Sort U.o.M. Values U.o.M. Values
Hardness Mechanical [HRC] 20 - 39 (one)* [HV] 100 - 250 (two)*
Greatest tensile energy Mechanical [MPa] five hundred - 1300 [psix10^3] 72 - 188
Support temperature Thermal [ºC] -196 / seven hundred [ºF] -320.8 / 1697

Corrosion Resistance 
Really very good corrosion resistance with respect to organic and natural substances, oxidating solutions, foodstuff, sterilizing answers. Very good resistance with regard to atmospheric corrosion and dyes. They are subjected to pitting and crevice corrosion in presence of very hot chloride options and to pressure corrosion when temperature exceeds 60°C. They do not resist to sulfuric acid solutions. AISI 302 shows a bit best corrosion resistance with respect to AISI 304/304L stainless steels.


Property  Description
Hardness* Balls can be equipped in the (one) Cold Labored (HRC 20-39, standard product) or (2) ANNEALED (HV one hundred-250, on desire) circumstances.
Magnetism Eventual magnetism of AISI 316 balls and in common of all austenitc stainless steels strictly is dependent by the producing approach, distinct inquiries for not magnetic balls need to priorly documented.
Precision Grade** On specifical request and for big portions, we can offer G10 and G16 precision grade balls. Diameters from three.000 mm to one/two".
Precision Quality** On specifical request we can supply G20-24-25-28-40-forty eight-fifty-60-80 precision quality balls.

Other Products


Production Method

Organization Info

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

metal balls,stainless steel balls ,bearing chrome steel balls ,hollow metal balls ,iron balls ,magnetic buckyballs ,ball connected items

these kinds of as ball cage or ball retainers, silicone balls ,plastic balls .ect…



Q:Do you give samples just before buy? is it free or further ?
A: Indeed, we could supply the sample ,But additional.or we can discuss
Q:Can you do CZPT layout ?
A: Indeed,we can do customizes design and style,you just give us your style,picture,layout,dimension and your essential.
Q:What is your terms of payment ?
A: Payment: 30% T/T in advance ,stability before shipment.

20.0mm 0.787inch AISI304 Stainless Steel Balls for Engine Push Rod