AISI 302/304/304L Stainless Steel Balls

AISI 302 / 304 / 304L Stainless Steel Balls

AISI 302 / 304 / 304L Stainless Steel Balls

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

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