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S-2 Rockbit
Balls
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S-2
Tool Steel balls are designed to achieve extreme ruggedness. The
ball surface has a smooth ground and polished finish. These
balls provide the toughness and strength necessary for severe
shock loads. S-2 Tool Steel balls are hardened throughout
and have unusually good wear characteristics.
S-2
Tool Steel balls find most frequent use in oil field equipment
and offshore drilling operations. They provide good
service in withstanding the abrasion of pulverized rock and mud
slurries.
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S-2
Tool Steel (Rockbit) Balls: Available Grades and
Sizes
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Grade
|
Size
Range in Inches and Millimeters
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50
- 200
|
5/32
- 1 3/4
3.968 - 38.100
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Click
here for sizes and pricing |
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Balls
per Pound
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Size
|
Balls
per Pound
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Inches
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Millimeters
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3/16
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4.762
|
1,020
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7/32
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5.556
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645
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1/4
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6.350
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432
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9/32
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7.143
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303
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5/16
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7.937
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221
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11/32
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8.731
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166
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3/8
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9.525
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128
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13/32
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10.318
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101
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7/16
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11.112
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80.6
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15/32
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11.906
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65.5
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1/2
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12.700
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54.0
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17/32
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13.493
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445.0
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9/16
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14.287
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37.9
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5/8
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15.875
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27.6
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11/16
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17.462
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20.8
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3/4
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19.050
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16.0
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13/16
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20.637
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12.6
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7/8
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22.225
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10.1
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1
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25.400
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6.75
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1
1/8
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28.575
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4.74
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1
1/4
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31.750
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3.46
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1
1/2
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38.100
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2.00
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*
Upon special request only.
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Material
Analysis:
S-2
Tool Steel (Rockbit) balls are manufactured to the following
chemical analysis:
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Material
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AISI
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Federal
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Military
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ASTM
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UNS
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AMS
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Military
and
Gov't Stds.
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S-2
Tool Steel
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S-2
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QQ-T-570
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-
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A681
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T-4190
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-
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-
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Chemical
Analysis
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Carbon................................................................
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0.47%
to 0.55%
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Manganese.........................................................
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0.30%
to 0.50%
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Silicon..................................................................
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0.90%
to 1.10%
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Molybdenum........................................................
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0.30%
to 0.60%
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Phosphorus.........................................................
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0.030%
maximum
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Sulpher.................................................................
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0.030%
maximum
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Vanadium............................................................
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0.5%
maximum
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Mechanical
Properties
Hardness
as measured on parallel flat surfaces is Rockwell
“C” 55-58. Ball of special hardness are
available upon request.
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Tensile
strength...................................................
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310,000
psi
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Yield
strength.......................................................
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290,000
psi
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Elongation
in two inches....................................
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7%
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Reduction
in area................................................
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25%
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Modulus
of elasticity...........................................
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30,000,000
psi
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Density.................................................................
|
0.283
lbs./cu. in
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© Copyright 2005 Hoover
Precision Products, Inc., All Rights Reserved |
-
| Rockbit
Balls
Click
Here for Ball Terms and Definitions (Grades Available and Tolerances)
Click
here to Order Online |
| Balls
per Pkg |
Stock
# |
Grade
# |
Diameter |
Pkg
Qty. |
Price/Pkg |
| 40000 |
KB-1219 |
200 |
0.187 |
Per
1000 |
$
37.44 |
| 40000 |
KB-1218 |
48 |
0.187 |
Per
1000 |
$
39.00 |
| 4350 |
KB-1221 |
200 |
0.250 |
Per
1000 |
$
64.56 |
| 4350 |
KB-1220 |
48 |
0.250 |
Per
1000 |
$
67.22 |
| 3000 |
KB-1213 |
200 |
0.281 |
Per
1000 |
$
92.88 |
| 3000 |
KB-1192 |
48 |
0.281 |
Per
1000 |
$
96.72 |
| 2200 |
KB-1182 |
200 |
0.312 |
Per
1000 |
$
76.56 |
| 2200 |
KB-1211 |
48 |
0.312 |
Per
1000 |
$
104.06 |
| 1300 |
KB-1184 |
200 |
0.375 |
Per
1000 |
$
113.88 |
| 1300 |
KB-1183 |
48 |
0.375 |
Per
1000 |
$
118.58 |
| 1300 |
KB-1186 |
200 |
0.406 |
Per
1000 |
$
142.68 |
| 1300 |
KB-1185 |
48 |
0.406 |
Per
1000 |
$
148.56 |
| 810 |
KB-1188 |
200 |
0.437 |
Per
1000 |
$
165.96 |
| 810 |
KB-1187 |
48 |
0.437 |
Per
1000 |
$
172.80 |
| 550 |
KB-1201 |
200 |
0.500 |
Per
1000 |
$
195.72 |
| 550 |
KB-1189 |
48 |
0.500 |
Per
1000 |
$
203.80 |
| 380 |
KB-1181 |
200 |
0.562 |
Per
1000 |
$
269.48 |
| 380 |
KB-1191 |
48 |
0.562 |
Per
1000 |
$
280.58 |
| 275 |
KB-1194 |
200 |
0.625 |
Per
1000 |
$
454.30 |
| 275 |
KB-1193 |
48 |
0.625 |
Per
1000 |
$
473.00 |
| 200 |
KB-1196 |
200 |
0.687 |
Per
1000 |
$
836.24 |
| 200 |
KB-1195 |
48 |
0.687 |
Per
1000 |
$
870.72 |
| 160 |
KB-1199 |
200 |
0.750 |
Per
1000 |
$
1,021.66 |
| 200 |
KB-1197 |
24 |
0.750 |
Per
1000 |
$
993.70 |
| 160 |
KB-1198 |
48 |
0.750 |
Per
1000 |
$
1,048.60 |
| 125 |
KB-552 |
200 |
0.812 |
Per
1000 |
$
1,344.90 |
| 125 |
KB-1200 |
48 |
0.812 |
Per
1000 |
$
1,400.34 |
| 100 |
KB-1174 |
200 |
0.875 |
Per
1000 |
$
2,494.34 |
| 100 |
KB-1173 |
48 |
0.875 |
Per
1000 |
$
2,597.00 |
| 80 |
KB-1176 |
200 |
0.938 |
Per
1000 |
$
2,183.56 |
| 80 |
KB-1175 |
48 |
0.938 |
Per
1000 |
$
2,272.70 |
| 80 |
KB-1178 |
200 |
0.969 |
Per
1000 |
$
2,418.26 |
| 80 |
KB-1177 |
48 |
0.969 |
Per
1000 |
$
2,518.60 |
| 65 |
KB-1170 |
200 |
1.000 |
Each |
$
2.62 |
| 65 |
KB-1149 |
48 |
1.000 |
Each |
$
2.74 |
| 40 |
KB-1139 |
200 |
1.125 |
Each |
$
5.84 |
| 40 |
KB-1168 |
48 |
1.125 |
Each |
$
6.08 |
| 30 |
KB-1141 |
200 |
1.250 |
Each |
$
7.08 |
| 30 |
KB-1140 |
48 |
1.250 |
Each |
$
7.38 |
| 25 |
KB-1143 |
200 |
1.375 |
Each |
$
11.86 |
| 25 |
KB-1142 |
48 |
1.375 |
Each |
$
12.36 |
| 20 |
KB-1145 |
200 |
1.500 |
Each |
$
13.26 |
| 20 |
KB-1144 |
48 |
1.500 |
Each |
$
13.82 |
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