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High Polished Small Stainless Steel Balls 2.381mm For Luggage AISI304

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Shandong JinNai International Trade Co., Ltd.

High Polished Small Stainless Steel Balls 2.381mm For Luggage AISI304

Country/Region china
City & Province jinan shandong
Categories Steel Rebars

Product Details

Production Description


 

AISI 302/304/304L STAINLESS STEEL BALLS
They display good mechanical characteristics, toughness and corrosion resistance. AISI 304L provides lower carbon content, AISI 302 better mechanical characteristics. Balls are provided in the passivated condition.

 

Applications
Special bearings and pumps, aerosol pumps, gardening and household sprayers, perfume miniature pumps, seams, medical application valves, agricultural backpack sprayers. They are used in foodstuff, aerospace and military industry.
 

Chemical composition

Type%C%Si%Mn%P%S%Cr%Ni%N
3020.150 max1.00 max2.00 max0.045 max0.030 max17.00-19.008.00-10.000.100 max
3040.080 max0.75 max2.00 max0.045 max0.030 max18.00-20.008.00-10.500.100 max
304L0.030 max0.75 max2.00 max0.045 max0.030 max18.00-20.008.00-10.500.100 max

International standards

ITAUSAGERFRAUKRUSCHNJAP
X10CrNi18-83021.4310Z11CN18-08301S2112KH18N91Cr18Ni9SUS301
X5CrNi18-103041.4301Z7CN18-09304S1508KH18N100Cr18Ni9SUS304
X2CrNi18-9304L1.4307Z3CN18-10304S1104KH18N1000Cr19Ni10SUS304L

Physical / mechanical / thermal / electric / magnetic properties

PropertySymbolU.o.M.TypeNotesValues
Densityδ[g/cm3]PhysicalRoom temp.7.95
Young's modulusE[GPa]Mechanical-200
Specific heatc[J/kg-K]ThermalRoom temp.500
Coefficient of linear thermal expansionα[10^-6/ºC]Thermal(ΔT=0-100°C)17.5
Thermal conductivityλ[W/(m·K)]ThermalRoom temp.15.8
Electric resistivityρ[Ω*m*10^-9]Electric-710
Relative magnetic permeabilityµ-MagneticParamagnetic1.025*

Technical data

PropertyTypeU.o.M.ValuesU.o.M.Values
HardnessMechanical[HRC]20 - 39 (1)*[HV]100 - 250 (2)*
Ultimate tensile strengthMechanical[MPa]500 - 1300[psix10^3]72 - 188
Service temperatureThermal[ºC]-196 / 700[ºF]-320.8 / 1697
Corrosion Resistance
Very good corrosion resistance with respect to organic substances, oxidating solutions, foodstuff, sterilizing solutions. Good resistance with respect to atmospheric corrosion and dyes. They are subjected to pitting and crevice corrosion in presence of hot chloride solutions and to stress corrosion when temperature exceeds 60°C. They do not resist to sulfuric acid solutions. AISI 302 shows slightly best corrosion resistance with respect to AISI 304/304L stainless steels.

Notes

PropertyDescription
Hardness*Balls can be supplied in the (1) COLD WORKED (HRC 20-39, standard product) or (2) ANNEALED (HV 100-250, on demand) conditions.
MagnetismEventual magnetism of AISI 316 balls and in general of all austenitc stainless steels strictly depends by the manufacturing process, specific inquiries for not magnetic balls should priorly reported.
Precision Grade**On specifical request and for big quantities, we can supply G10 and G16 precision grade balls. Diameters from 3.000 mm to 1/2".
Precision Grade**On specifical request we can supply G20-24-25-28-40-48-50-60-80 precision grade balls.

 

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