S-2 Rockbit Balls
|
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.
|
Rockbit Balls
|
|
Balls per Pkg |
Stock # |
Grade # |
Diameter |
Price/Pkg |
|
40000 |
KB-1219 |
200 |
0.187 |
$1497.60 |
|
100 |
KB-1802 |
200 |
0.187 |
$4.73 |
|
40000 |
KB-1218 |
48 |
0.187 |
$1560.00 |
|
4350 |
KB-1221 |
200 |
0.250 |
$280.84 |
|
100 |
KB-1803 |
200 |
0.250 |
$8.62 |
|
4350 |
KB-1220 |
48 |
0.250 |
$292.41 |
|
3000 |
KB-1213 |
200 |
0.281 |
$278.64 |
|
3000 |
KB-1192 |
48 |
0.281 |
$290.16 |
|
2200 |
KB-1182 |
200 |
0.312 |
$168.43 |
|
100 |
KB-1804 |
200 |
0.312 |
$13.34 |
|
2200 |
KB-1211 |
48 |
0.312 |
$228.93 |
|
1300 |
KB-1184 |
200 |
0.375 |
$148.04 |
|
1300 |
KB-1183 |
48 |
0.375 |
$154.15 |
|
1300 |
KB-1186 |
200 |
0.406 |
$185.48 |
|
1300 |
KB-1185 |
48 |
0.406 |
$193.13 |
|
810 |
KB-1188 |
200 |
0.437 |
$134.43 |
|
810 |
KB-1187 |
48 |
0.437 |
$139.97 |
|
50 |
KB-1805 |
200 |
0.437 |
$13.50 |
|
550 |
KB-1201 |
200 |
0.500 |
$107.65 |
|
50 |
KB-1806 |
200 |
0.500 |
$16.70 |
|
550 |
KB-1189 |
48 |
0.500 |
$165.08 |
|
380 |
KB-1181 |
200 |
0.562 |
$102.40 |
|
380 |
KB-1191 |
48 |
0.562 |
$106.62 |
|
275 |
KB-1194 |
200 |
0.625 |
$124.93 |
|
50 |
KB-1807 |
200 |
0.562 |
$21.13 |
|
275 |
KB-1193 |
48 |
0.625 |
$130.08 |
|
200 |
KB-1196 |
200 |
0.687 |
$167.25 |
|
25 |
KB-1818 |
200 |
0.687 |
$18.92 |
|
200 |
KB-1195 |
48 |
0.687 |
$174.14 |
|
160 |
KB-1199 |
200 |
0.750 |
$163.47 |
|
25 |
KB-1809 |
200 |
0.750 |
$21.94 |
|
200 |
KB-1197 |
24 |
0.750 |
$198.74 |
|
160 |
KB-1198 |
48 |
0.750 |
$167.78 |
|
125 |
KB-552 |
200 |
0.812 |
$168.11 |
|
25 |
KB-1800 |
200 |
0.812 |
$28.04 |
|
125 |
KB-1200 |
48 |
0.812 |
$175.04 |
|
100 |
KB-1174 |
200 |
0.875 |
$249.43 |
|
10 |
KB-1811 |
200 |
0.875 |
$14.56 |
|
100 |
KB-1173 |
48 |
0.875 |
$259.70 |
|
10 |
KB-1835 |
200 |
0.937 |
$16.86 |
|
80 |
KB-1176 |
200 |
0.938 |
$174.68 |
|
80 |
KB-1175 |
48 |
0.938 |
$181.82 |
|
80 |
KB-1178 |
200 |
0.969 |
$193.46 |
|
80 |
KB-1177 |
48 |
0.969 |
$201.49 |
|
65 |
KB-1170 |
200 |
1.000 |
$170.30 |
|
65 |
KB-1149 |
48 |
1.000 |
$178.10 |
|
10 |
KB-1814 |
200 |
1.00 |
$19.72 |
|
40 |
KB-1139 |
200 |
1.125 |
$233.60 |
|
40 |
KB-1168 |
48 |
1.125 |
$243.20 |
|
30 |
KB-1141 |
200 |
1.250 |
$212.40 |
|
30 |
KB-1140 |
48 |
1.250 |
$220.14 |
|
25 |
KB-1143 |
200 |
1.375 |
$296.50 |
|
25 |
KB-1142 |
48 |
1.375 |
$309.00 |
|
20 |
KB-1145 |
200 |
1.500 |
$265.20 |
|
20 |
KB-1144 |
48 |
1.500 |
$276.40 |
|
 |
|
|
|
S-2 Tool Steel (Rockbit) Balls: Available
Grades and Sizes
|
|
Grade
|
Size Range in Inches and Millimeters
|
|
50 - 200
|
5/32 - 1 3/4
3.968 - 38.100
|
|
|
Click here for sizes and pricing |
|
|
Balls per Pound
|
|
Size
|
Balls per Pound
|
|
Inches
|
Millimeters
|
|
3/16
|
4.762
|
1,020
|
|
7/32
|
5.556
|
645
|
|
1/4
|
6.350
|
432
|
|
9/32
|
7.143
|
303
|
|
5/16
|
7.937
|
221
|
|
11/32
|
8.731
|
166
|
|
3/8
|
9.525
|
128
|
|
13/32
|
10.318
|
101
|
|
7/16
|
11.112
|
80.6
|
|
15/32
|
11.906
|
65.5
|
|
1/2
|
12.700
|
54.0
|
|
17/32
|
13.493
|
445.0
|
|
9/16
|
14.287
|
37.9
|
|
5/8
|
15.875
|
27.6
|
|
11/16
|
17.462
|
20.8
|
|
3/4
|
19.050
|
16.0
|
|
13/16
|
20.637
|
12.6
|
|
7/8
|
22.225
|
10.1
|
|
1
|
25.400
|
6.75
|
|
1 1/8
|
28.575
|
4.74
|
|
1 1/4
|
31.750
|
3.46
|
|
1 1/2
|
38.100
|
2.00
|
|
* Upon special request only.
|
|
|
|
|
Material Analysis:
S-2 Tool Steel (Rockbit) balls are manufactured to the following
chemical analysis:
|
|
|
|
|
Material
|
AISI
|
Federal
|
Military
|
ASTM
|
UNS
|
AMS
|
Military and
Gov't Stds.
|
|
S-2 Tool Steel
|
S-2
|
QQ-T-570
|
-
|
A681
|
T-4190
|
-
|
-
|
|
|
|
|
|
Chemical Analysis
|
|
Carbon................................................................
|
0.47% to 0.55%
|
|
Manganese.........................................................
|
0.30% to 0.50%
|
|
Silicon..................................................................
|
0.90% to 1.10%
|
|
Molybdenum........................................................
|
0.30% to 0.60%
|
|
Phosphorus.........................................................
|
0.030% maximum
|
|
Sulpher.................................................................
|
0.030% maximum
|
|
Vanadium............................................................
|
0.5% maximum
|
|
|
|
|
|
Mechanical Properties
Hardness as measured on parallel flat surfaces is
Rockwell “C” 55-58. Ball of special hardness are
available upon request.
|
|
Tensile
strength...................................................
|
310,000 psi
|
|
Yield
strength.......................................................
|
290,000 psi
|
|
Elongation in two
inches....................................
|
7%
|
|
Reduction in
area................................................
|
25%
|
|
Modulus of
elasticity...........................................
|
30,000,000 psi
|
|
Density.................................................................
|
0.283 lbs./cu. in
|
|
©
copyright 2005 Hoover Precision Products, Inc., All Rights Reserved |
