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China Stainless Steel Balls manufacturer

2.381mm Silver Stainless Steel Bearings For Perfume Miniature Pumps 304

Product Details:
Place of Origin: Shandong
Brand Name: JN
Certification: ISO、CE
Model Number: 304
Payment & Shipping Terms:
Minimum Order Quantity: 500kg
Price: Negotiable
Packaging Details: Ploy bag+25kg carton box+1000kg wooden box
Delivery Time: 7-15 days
Payment Terms: L/C, T/T, MoneyGram, Western Union
Supply Ability: 500tons One Month

Detail Information

Standard: AISI, ASTM, DIN, EN, GB Grade: G10 G16 G28 G100 G200 G500 G1000
Place Of Origin: Shandong, China Surface: High Polished
Feature: Anti-rust , Anti-wear Specific Gravity: 7.93-7.98
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stainless steel round balls


round steel balls

Product Description


Production Description

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.


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
302 0.150 max 1.00 max 2.00 max 0.045 max 0.030 max 17.00-19.00 8.00-10.00 0.100 max
304 0.080 max 0.75 max 2.00 max 0.045 max 0.030 max 18.00-20.00 8.00-10.50 0.100 max
304L 0.030 max 0.75 max 2.00 max 0.045 max 0.030 max 18.00-20.00 8.00-10.50 0.100 max

International standards

X10CrNi18-8 302 1.4310 Z11CN18-08 301S21 12KH18N9 1Cr18Ni9 SUS301
X5CrNi18-10 304 1.4301 Z7CN18-09 304S15 08KH18N10 0Cr18Ni9 SUS304
X2CrNi18-9 304L 1.4307 Z3CN18-10 304S11 04KH18N10 00Cr19Ni10 SUS304L

Physical / mechanical / thermal / electric / magnetic properties

Property Symbol U.o.M. Type Notes Values
Density δ [g/cm3] Physical Room temp. 7.95
Young's modulus E [GPa] Mechanical - 200
Specific heat c [J/kg-K] Thermal Room temp. 500
Coefficient of linear thermal expansion α [10^-6/ºC] Thermal (ΔT=0-100°C) 17.5
Thermal conductivity λ [W/(m·K)] Thermal Room temp. 15.8
Electric resistivity ρ [Ω*m*10^-9] Electric - 710
Relative magnetic permeability µ - Magnetic Paramagnetic 1.025*

Technical data

Property Type U.o.M. Values U.o.M. Values
Hardness Mechanical [HRC] 20 - 39 (1)* [HV] 100 - 250 (2)*
Ultimate tensile strength Mechanical [MPa] 500 - 1300 [psix10^3] 72 - 188
Service temperature Thermal [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.


Property Description
Hardness* Balls can be supplied in the (1) COLD WORKED (HRC 20-39, standard product) or (2) ANNEALED (HV 100-250, on demand) conditions.
Magnetism Eventual 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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