2.381mm 3 32″ AISI440c Stainless Steel Balls for Gas Pressure Regulator

Generation Description

They show excellent mechanical attributes, toughness and corrosion resistance. AISI 304L gives lower carbon content material, AISI 302 far better mechanical attributes. Balls are supplied in the passivated situation.


Stainless steel balls are broadly used in bearings, vehicles, motorcycles, bicycles, home appliances, chemical equipment, textile equipment, food equipment, mining equipment, instruments, and other fields.

Chemical composition 

Kind %C %Si %Mn %P %S %Cr %Ni %N
302 .150 max one.00 max 2.00 max .045 max .030 max seventeen.00-19.00 8.00-ten.00 .100 max
304 .080 max .seventy five max 2.00 max .045 max .030 max eighteen.00-20.00 eight.00-ten.fifty .one hundred max
304L .030 max .seventy five max 2.00 max .045 max .030 max eighteen.00-20.00 eight.00-10.fifty .one hundred max

CZPT standards 

ITA United states GER FRA United kingdom RUS CHN JAP
X10CrNi18-eight 302 1.4310 Z11CN18-08 301S21 12KH18N9 1Cr18Ni9 SUS301
X5CrNi18-10 304 1.4301 Z7CN18-09 304S15 08KH18N10 0Cr18Ni9 SUS304
X2CrNi18-nine 304L one.4307 Z3CN18-ten 304S11 04KH18N10 00Cr19Ni10 SUS304L

Physical / mechanical / thermal / electric powered / magnetic properties 

House Symbol U.o.M. Variety Notes Values
Density δ [g/cm3] Bodily Space temp. 7.ninety five
Young’s modulus E [GPa] Mechanical 200
Distinct heat c [J/kg-K] Thermal Area temp. five hundred
Coefficient of linear thermal enlargement α [10^-6/ºC] Thermal (ΔT=-100°C) 17.five
Thermal conductivity λ [W/(m·K)] Thermal Area temp. 15.eight
CZPT resistivity ρ [Ω*m*10^-nine] CZPT 710
Relative magnetic permeability µ Magnetic Paramagnetic one.571*

CZPT data 

Home Variety U.o.M. Values U.o.M. Values
Hardness Mechanical [HRC] twenty – 39 (one)* [HV] one hundred – 250 (2)*
Ultimate tensile toughness Mechanical [MPa] 500 – 1300 [psix10^3] seventy two – 188
Services temperature Thermal [ºC] -196 / seven-hundred [ºF] -320.8 / 1697

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


Property  Description
Hardness* Balls can be equipped in the (one) Chilly Labored (HRC twenty-39, standard solution) or (2) ANNEALED (HV 100-250, on need) circumstances.
Magnetism Eventual magnetism of AISI 316 balls and in common of all austenitc stainless steels strictly is dependent by the manufacturing approach, specific inquiries for not magnetic balls need to priorly reported.
Precision Quality** On specifical request and for large quantities, we can supply G10 and G16 precision quality balls. Diameters from three.000 mm to one/2″.
Precision Quality** On specifical request we can source G20-24-twenty five-28-forty-forty eight-50-sixty-eighty precision grade balls.

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Creation Process

Business Details

ZheJiang Jinnai CZPT Trade Co.,Ltd. is 1 of the specialist manufactures which focus in the steel ball,like carbon

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

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



Q:Do you give samples prior to get? is it totally free or additional ?
A: Of course, we could offer you 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 layout,photograph,format,dimension and your needed.
Q:What is your phrases of payment ?
A: Payment: 30% T/T in progress ,balance prior to cargo.