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STANDARD
MATERIALS
SPECIFICATIONS
In
developing our ball products, Hartford Technologies is
continually researching and testing new, more cost-effective
materials. We now offer an extensive inventory of
conventional and non-conventional materials to meet virtually
any application challenge more efficiently. Added
supply and delivery capabilities also translate into additional
cost savings for our customers.
Sizes, Grades,Tolerances |
Definitions from ABMA |
Grade |
Sphericity |
Dia.
Tolerance per Container/Lot |
Diameter
Tolerance
per Shipment |
Max.
Surface Finish |
| |
Inches |
MM |
Inches |
MM |
Inches |
MM |
Arithmetic
Average |
10 |
0.00001 |
0.0002 |
0.00002 |
0.0005 |
±0.0001 |
±0.00254 |
1 |
15 |
0.00001 |
0.0004 |
0.00003 |
0.0007 |
±0.0001 |
±0.00254 |
1 |
25 |
0.000025 |
0.0006 |
0.00005 |
0.0013 |
±0.0001 |
±0.00254 |
2 |
50 |
0.00005 |
0.0013 |
0.0001 |
0.0025 |
±0.0002 |
±0.0050 |
3 |
100 |
0.0001 |
0.0025 |
0.0002 |
0.0050 |
±0.0005 |
±0.0127 |
5 |
200 |
0.0002 |
0.0051 |
0.0004 |
0.0102 |
±0.0010 |
±0.0254 |
8 |
300 |
0.0003 |
0.0076 |
0.0006 |
0.0152 |
±0.0015 |
±0.0381 |
n/a |
500 |
0.0005 |
0.0127 |
0.001 |
0.025 |
±0.002 |
±0.050 |
n/a |
1000 |
0.0010 |
0.0254 |
0.002 |
0.051 |
±0.005 |
±0.127 |
n/a |
2000 |
n/a |
n/a |
0.005 |
0.127 |
±0.005 |
±0.127 |
n/a |
Burnishing |
n/a |
n/a |
n/a |
n/a |
±0.005 |
±0.127 |
n/a |
Strength
vs. Corrosion Resistance
Corrosion Resistance
| |
Industrial
Atmospheres |
Salt
Air |
Wet
Steam |
Domestic
Water |
Sea
Water |
Food
Products |
Dairy
Products |
Fruit,& Veg.
Juices |
Hot
Sulfite |
Dye
|
Carbon Steel |
3 |
* |
4 |
4 |
* |
* |
* |
* |
* |
* |
52100
Chrome |
3 |
* |
4 |
4 |
* |
* |
* |
* |
* |
* |
440C |
2 |
3 |
2 |
2 |
* |
2 |
2 |
3 |
* |
4 |
302/304 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
* |
316 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
4 |
Brass |
3 |
3 |
2 |
3 |
3 |
4 |
4 |
4 |
3 |
4 |
Glass |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
2 |
Nylon |
3 |
4 |
3 |
3 |
* |
3 |
3 |
3 |
* |
* |
Teflon |
1 |
1 |
1 |
1 |
1 |
3 |
3 |
3 |
1 |
1 |
|
Hydro
Chloric
Acid |
Sulfuric
Acid |
Nitric
Acid
|
Sulfuric
Acid
50% Con. |
Nitric
Acid
50% Con. |
Ammonia
|
Alkaline
Salts |
|
* |
* |
* |
* |
* |
* |
* |
|
* |
* |
* |
* |
* |
* |
* |
|
* |
* |
1 |
* |
1 |
3 |
2 |
|
* |
2 |
1 |
1 |
1 |
1 |
2 |
|
* |
2 |
1 |
1 |
1 |
1 |
2 |
|
* |
* |
* |
* |
* |
* |
3 |
|
2 |
1 |
2 |
1 |
2 |
2 |
3 |
|
4 |
2 |
-- |
-- |
-- |
-- |
2 |
|
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Definitions: |
| 1 |
Excellent |
| 2 |
Good |
| 3 |
Fair |
| 4 |
Poor |
| V |
Varies |
| * |
Will not withstand conditions |
Mechanical Properties
| |
Tensile
Strength
PSI |
Yield
Strength
PSI |
Specific
Gravity
gm/cc |
Hardness
Rockwell Scale |
|
90,000 |
75,000 |
7.86 |
C-60
to 63 |
|
325,000 |
295,000 |
7.83 |
C-60
to 66 |
|
285,000 |
275,000 |
7.67 |
C-58
to 62 |
|
180,000 |
150,000 |
7.91 |
C
-25 to 39 |
|
180,000 |
150,000 |
7.97 |
C-25
to 39 |
|
70,000 |
48,000 |
8.47 |
B
75 to 87 |
|
10,000 |
4,000 |
2.20 |
5-7
(*) |
|
220,000 |
220,000 |
14.94 |
A
84-91.5 |
|
10,900 |
8,900 |
1.12 |
R-118 |
|
10,000 |
8,800 |
1.42 |
R
119-122 |
|
2,500 |
|
2.13 |
55-70
(2) |
*
- Glasses are Moh Scale 2 - Durometer Hardness
Secondary
operations include:
Drilled
Balls
Plating
• Gold with other metals
• Copper Flash/Nickel plate
• Silver
• Tin
• Chrome
Coatings
•
Teflon
• Black Oxide
Burnishing Products
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