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440C Stainless Steel Miniature Balls

440C stainless steel balls exhibit excellent toughness and hardness properties combined with corrosion resistance. Typical applications include ball bearings, ball screws, ball bushings, valve applications and applications where some level of corrosion resistance is required. Vacuum Induction melted/vacuum arc re-melted (VM)-(VIN-MAR) materials are available upon request.

Passivation to ASTM A380 and QQ P 35 is available upon request.

NEMB has 440C stainless steel ball offerings for your project's unique application. Our years of experience and dedication to our craft mean that we are experts in the field of special material balls. Fill out the Quick Contact form today we're sure we have the 440C stainless steel ball to fit your criteria!

MATERIAL CONVERSION STANDARDS 440C Stainless Steel

MATERIAL AISI FEDERAL DIN ASTM JIS AMS MIL. & GOV'T STANDARDS
Stainless Steel 440C QQ-S-763 X105CrMo17 A276-89 SUS440C 5630G MS 19060

Material Analysis:

AISI 440C* Stainless Steel Balls are uniformly hardened and tempered throughout their entire diameter in conformance to MIL-H-6875. Ball hardness is controlled within a range of HRC 58 - 65 as measured on a parallel surface.

*440C type Stainless Steel balls are magnetic

CHEMICAL ANALYSIS MECHANICAL PROPERTIES
Carbon 0.95 to 1.20% Tensile Strength 285,000 psi
Chromium 16 to 18% Yield Strength 275,000 psi
Manganese 1.0% Max Elongation in two inches 2%
Silicon 1.0% Max Reduction in area 10%
Phosphorus 0.04% Max Modulus of elasticity 29,000,000 psi
Sulfur 0.03% Max Density .277 lbs./cu. In.
Nickel 0.75% Max    
Molybdenum 0.40 - 0.65%    

Available Grades and Sizes:

GRADE SIZE RANGE
  Inches Millimeters
10, 24, 48, 100, 200 0.010" - 0.250" 0.254mm - 6.35mm
3, 5 Select sizes

Balls per Pound:

SIZE # BALLS PER POUND
Inch Metric  
.010   6,894,770
.015   2,042,895
.020   861,846
.025   441,265
1/32   225,925
0.0394 1mm 112,986
3/64   66,942
1/16   28,241
5/64   14,473
0.0787 2mm 14,123
3/32   8,368
7/64   5,269
0.1181 3mm 4,185
1/8   3,350
9/64   2,479
5/32   1,807
0.157 4mm 1,780

Contact us for more information on these or any other materials.