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By certification 
302 stainless steel balls are widely used for valves, pumps, sprayers, agitators and food processing etc. The material of 302 stainless steel ball offer good corrosion resistance and good antirust but poor hardness. 302 stainless steel ball has similar physical characteristics with 304 stainless steel ball with a little higher hardness.
302 STAINLESS STEEL BALL | |
Size range |
0.50mm (0.02") up to 50.8mm (2") |
Grades |
G100, G200, G500, G1000 |
Hardness |
HRC 28 Max. |
MATERIAL CONVERSION | |
GB (China) |
1Cr18Ni9 |
ASTM/AISI (USA) |
302 |
???? (Russia) |
12X18H9 |
BS (UK) |
302S25 |
JIS (Japan) |
SUS302 |
NF (France) |
Z10CN18.09 |
DIN (Germany) |
X12CrNi188 |
CHEMICAL COMPOSITION | |
STEEL NUMBER |
302 |
Carbon (C) |
0.15% Max. |
Silicon (Si) |
1% Max. |
Manganese (Mn) |
2% Max. |
Phosphorous (P) |
0.045% Max. |
Sulphur (S) |
0.03% |
Nickel (Ni) |
8% - 10% |
Chromium (Cr) |
17% - 19% |
PHYSICAL CHARACTERISTICS | |
Tensile strength |
100,000 psi – 180,000 psi |
Yield strength |
50,000 psi – 150,000 psi |
Modulus of elasticity |
29,000,000 psi |
Density |
286 lbs/in3 |
Corrosion resistance |
Yes, comparison details as below chart. |
Magnetic |
Magnetism could be erased. |
Application |
Valves, Sprayers, Bottles, Pumps etc. |
http://www.mzballs.com/
