S-2 Tool Steel Ball(Rockbit)
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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Material |
AISI |
Military ASTM |
UNS AMS |
DIN |
JIS/SUJ |
|
S-2 Tool Steel |
S-2 |
A-681 |
T-41902 |
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|
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Additional testing may be required to certify that materials comply with specific standards. |
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MATERIAL ANALYSIS
S-2 Tool Steel (Rockbit) balls are manufactured to the following chemical analysis:
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Chemical Analysis |
|
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Carbon |
0.47% to 0.55% |
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Manganese |
0.30% to 0.50% |
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Silicon |
0.90% to 01.10% |
|
Molybdenum |
0.30% to 0.60% |
|
Phosphorus |
0.030% maximum |
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Sulphur |
0.030% maximum |
|
Vanadium |
0.5% maximum |
MECHANICAL PROPERTIES
Hardness as measured on parallel flat surfaces is Rockwell “C”55-59.Ball of special hardness are available upon request.
|
Tensile strength |
310,000 psi |
|
Elongation in two inches |
7% |
|
Reduction in area |
25% |
|
Modulus of elasticity |
30,000,000 psi |
AVAILABLE GRADES AND SIZES
|
Grade |
Size Range in Inches and Millimeters |
|
28-200 |
3/8”-2-1/4” 9.525mm-57.15mm |
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