Stainless Steel Balls

AISI 304 and AISI 304L Stainless Steel Balls are unhardened austenitic stainless steel balls with good mechanical characteristics, toughness and corrosion resistance. Some applications are bearings and pumps, aerosol pumps, gardening and household sprayers, perfume miniature pumps, medical application valves, agricultural backpacksprayers. They are used in foodstuff, plant breeding, aerospace and military industry.

Chemical Composition for Stainless Steel Balls

Type% C% Si% Mn% P% S% Cr% Mo% Ni
AISI3040.080 max1.00 max2.00 max0.045 max0.03 max17.00 – 20.008.00 – 11.008.00 – 11.00
AISI304L0.030 max1.00 max2.00 max0.045 max0.03 max17.00 – 20.008.00 – 11.008.00 – 11.00

Other Specifications for AISI 304 and AISI 304L Stainless Steel Balls

AISI304ITA: X5CrNi18-10, USA: 304, GER: 1.4301
AISI304LITA: X2CrNi18-9, USA: 304L, GER: 1.4307
Density7.95 g/cm3
Young’s modulus200 GPa
Specific heat500 J/kg-K
Coefficient of lineair thermal expansion17.5 10^-6/ºC
Thermal conductivity15.8 W/(m*K)
Electric resistivity710 Ohm*m*10^-9
Relative magnetic permeability1.025 mu
Hardness20 – 39 HRC (100 – 250 HV see below)
see below)Ultimate tensile strenght500 – 1300 MPa
Service temperature-196 / 700 ºC
Diameters0.3 – 300 mm
Precision GradesG100-G200-G300-G500-G600-G700-G1000 Iso 3290-1 / DIN 5401 / AFBMA
MagnetismDepending on manufacturing process (see below)

Very good corrosion resistance with respect to organic substances, oxidating solutions, foodstuff, sterilizing solutions. Good resistance with respect to atmospheric corrosion and dyes. Subjected to pitting and crevice corrosion in presence of hot chloride solutions and to stress corrosion when temperature exceeds 60 ºC. Not resistant to sulfuric acid solutions.

Specific requests needed for magnetic balls or not magnetic balls, high precision grades G10 – G80 and values inbetween and hardness 100 – 250 HV annealed (Standard is cold worked HRC 20-39).

All above information is non binding information only meant to give an indication of the specific values. Our balls are sourced from various manufacturers so values may vary (more) than indicated. If values are critical please give us your demand before you order.