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302 Stainless Steel Balls:   Available Grades and Sizes                                               Balls per Pound

Grade

Size Range in Inches

100 - 1000

1/8 - 2 

Stainless Steel Balls Type 302

AISI type 302 stainless steel balls meet requirements for an unhardened ball with excellent toughness and resistance to corrosion. Corrosion resistance may be increased through annealing. Both non-annealed and annealed balls are widely used in valves and related equipment.

Stainless steel type 302 balls are capable of resisting corrosion by such agents as oxidizing solutions, most organic chemicals, food stuffs and sterilizing solutions.  They are moderately resistant to sulfuric acids. Nonmagnetic properties are available upon request.

Applications include aerosol, sprayers, finger pumps mechanisms, milk machine blenders, food processing equipment and medical applications.

Material Analysis:
All sizes and grades are of the highest quality and in accordance with AISI type 302. 
Passivation to ASTM A380 is available upon request..

Material

AISI

Federal

Military

ASTM

UNS

AMS

Stainless Steel Type 302

302

QQ-S-763

-

A-493

S-30200

-

Chemical Analysis:

Carbon...........................................

0.15% maximum

Chromium.......................................

17.0% to 19.0%

Manganese.....................................

2.0% maximum

Silicon............................................

1.0% maximum

Nickel.............................................

8.0% to 10.0%

Phosphorus....................................

0.045% maximum

Sulphur...........................................

0.03% maximum

Mechanical Properties:
Hardness as measured on parallel flat surfaces is Rockwell “C” 25-39.

Tensile Strength..............................

80,000 to 180,000 psi

Yield Strength.................................

50,000 to 150,000 psi

Elongation in two inches..................

10.0% to 50.0%

Reduction in area............................

55.0% to 65.0%

Modulus of elasticity........................

29,000,000 psi

Density..........................................

0.286 lbs./cu. in

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