440SS (Stainless Steel Balls)

Stainless Steel Type 440 C Balls

AISI type 440-C stainless steel balls afford the advantage of maximum hardness combined with corrosion-resisting properties. This hardness, together with precise geometry and fine surface finish, makes them especially useful for bearing and valve applications where severe environmental conditions may occure.

Consumable electrode vacuum meleted (CEVM) and vacuum induction melted/vacuum arc remelted (VIM-MAR) materials are available upon request.

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Stainless Steel 440-C Balls:   Available Grades and Sizes

Miniature Precision Stainless Steel 440-C Balls

Grade

Size Range in Inches and Millimeters

3

.025 - 3/16                          0.793 - 4.792

5

.025 - 3/16                          0.793 - 4.762

10

1/32 - 11/64                       0.793 - 4.365

24

1/32 - 11/64                       0.793 - 4.365

48

1/32 - 11/64                       0.793 - 4.365

100

1/32 - 3/32                          0.793 - 2.381

200

1/32 - 3/32                          0.793 - 2.381

Stainless Steel 440-C Balls:   Available Grades and Sizes

Precision Stainless Steel 440-C Balls

Grade

Size Range in Inches and Millimeters

10

3/16 - 1 1/4                         4.762 - 31.750

16

3/16 - 1 1/4                         4.762 - 31.750

24

3/16 - 2                               4.762 - 50.800

48

3/16 - 2                               4.762 - 50.800

100

1/8 - 4 1/2                          3.175 - 114.300

200

1/8 - 4 1/2                          3.175 - 114.300

1000

1/8 - 4 1/2                          3.175 - 114.300

Media

1/8 - 3/4                              3.175 - 19.050

Balls per Pound

Size

Balls per Pound

Inches

Millimeters

1/32

0.793

226,000

3/64

1.190

66,900

1/16

1.587

28,500

3/32

2.381

8,300

1/8

3.175

3,530

5/32

3.968

1,800

3/16

4.762

1,050

7/32

5.556

659

1/4

6.350

441

9/32

7.143

310

5/16

7.937

226

11/32

8.731

170

3/8

9.525

131

7/16

11.112

82.3

1/2

12.700

55.2

9/16

14.287

38.7

5/8

15.875

28.2

11/16

17.462

21.2

3/4

19.050

16.3

13/16

20.637

12.9

7/8

22.225

10.3

15/16

23.812

8.37

1

25.400

5.89

1 1/16

26.987

5.75

1 1/8

28.575

4.84

1 3/16

30.162

4.12

Balls per Pound

Size

Balls per Pound

Inches

Millimeters

1 1/4

31.750

3.53

1 5/16

33.337

3.05

1 3/8

34.925

2.65

1 7/16

36.512

2.32

1 1/2

38.100

2.04

1 9/16

39.687

1.81

1 5/8

41.275

1.61

1 11/16

42.862

1.43

1 3/4

44.450

1.29

1 13/16

46.037

1.16

1 7/8

47.625

1.05

1 15/16

49.212

.948

2

50.80

.862

2 1/8

53.975

.719

2 1/4

57.151

.604

2 3/8

60.325

.515

2 1/2

63.500

.441

2 5/8

66.675

.373

2 3/4

69.850

.325

2 7/8

73.025

.284

3

76.200

.250

3 1/4

82.550

.197

3 1/2

88.900

.157

3 3/4

95.250

.128

4

101.600

.105

4/1/2

114.300

.074

Material Analysis:
All sizes and grades of corrosion-resisting hardened stainless steel balls are made to ASTM 756. Passivation to ASTM A380 and QQ P 35 is available upon request.

Material

CDA

Federal

Military & Gov’t Std.

ASTM

UNS

AMS

Type 440

440-C

QQ-S-763b

MS 19060

ASTM-756

S-44004

5630G
5880A

Chemical Analysis

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

0.95% to 1.10%

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

16.0% to 18.0%

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

1.0% maximum

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