The Steel balls are unhardened and austenitc in nature. These Steel balls have good mechanical properties and are high performing in the corrosion resistance factor. As per a basic principle all stainless steel balls are passivated. These balls can be offered in two different types, Magnetic balls & Non Magnetic Balls depending on the end application of the balls.
Applications :
- Aerosol pumps (medical/pharmaceutical industries)
- Grinding media
- Food Industry
- Bearings
- Agricultural Industry
- Automotive Industry
Corrosion resistance balls can be offered with a basic 24 hour/ 48 hour / 72 hour salt spray testing as well as these Steel balls can withstand the vigorous L'oreal testing, which shows the high resistance against corrosion.
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 |
1.00 max |
2.00 max |
0.045 max |
0.030 max |
18.00-20.00 |
8.00-12.00% |
0.100 max |
| 304L |
0.030 max |
1.00 max |
2.00 max |
0.045 max |
0.030 max |
18.00-20.00 |
8.00-12.00% |
0.100 max |
International Standards and material codes
|
ITA
|
USA
|
GER
|
FRA
|
UK
|
RUS
|
CHN
|
JAP
|
| X10CrNi18-8 |
302 |
1.431 |
Z11CN18-08 |
301S21 |
12KH18N9 |
1Cr18Ni9 |
SUS301 |
| X5CrNi18-10 |
304 |
1.431 |
Z7CN18-09 |
304S15 |
08KH18N10 |
0Cr18Ni9 |
SUS304 |
| X2CrNi18-9 |
304L |
1.4307 |
Z3CN18-10 |
304S11 |
04KH18N10 |
00Cr19Ni10 |
SUS304L |
Technical Properties
|
Property
|
Type
|
U.o.M.
|
Values
|
U.o.M.
|
Values
|
| Hardness |
Mechanical |
[HRC] |
10 - 25 (1)* |
[HRC] |
25 - 39 (2)* |
| Ultimate tensile strength |
Mechanical |
[MPa] |
500 - 1300 |
[psix10^3] |
72 - 188 |
Note
|
Property
|
Description
|
| Hardness* |
Balls can be supplied in the ANNEALED (Non Magnetic) condition (HRC 10-25) or COLD WORKED (Magnetic) condition (HRC 25-39). |
Size Range
| Product |
Size Range |
U.o.M. |
Grade Capabilities |
| Balls |
3.00 mm to 40.00 mm |
[mm] |
GR.60 to GR.2000 as per any International standard. |
| Comparison Chart- Material Corrosion Resistance |
Material
|
CORROSION RESISTANCE |
| Air |
Water |
Food |
Liquor |
Dilute Acid |
Conc. Acid |
Chemical |
| Industrial Atmosphere |
Salt Air |
Wet Steam |
Domestic Water |
Sea Water |
Food Product |
Fruit & Veg. Juice |
Dairy Product |
Hot Sulfate |
Dye |
HCL |
H2SO4 |
HNO3 |
Phosphoric |
H2SO4 |
HNO3 |
Phosphoric |
Ammonia |
Alkaline Salt |
| AISI-E-52100 |
3 |
← |
4 |
4 |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
2 |
3 |
| AISI-420 |
2 |
4 |
1 |
1 |
← |
3 |
3 |
2 |
← |
3 |
← |
← |
← |
← |
← |
← |
← |
2 |
3 |
| AISI 420C |
2 |
4 |
1 |
1 |
← |
3 |
3 |
2 |
← |
3 |
← |
← |
← |
← |
← |
← |
← |
2 |
3 |
| AISI 440C |
2 |
3 |
2 |
2 |
← |
2 |
2 |
3 |
← |
4 |
← |
← |
← |
← |
← |
← |
← |
3 |
2 |
| AISI 304/302 |
2 |
1 |
1 |
1 |
1 |
1 |
2 |
2 |
1 |
4 |
2 |
2 |
2 |
2 |
😑 |
2 |
2 |
1 |
1 |
| AISI 316 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
4 |
← |
2 |
1 |
2 |
1 |
1 |
1 |
1 |
2 |
| AISI 1085 |
3 |
← |
4 |
4 |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
← |
2 |
3 |
1=Excellent 2 = Good 3 = Fair 4 = Poor
← Will not withstand corrosion
😑 Varies
* = satisfactory only over 75% concentration
