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The most widely used carburizing alloy. Its nickel content imparts good toughness and ductility. The chromium and molybdenum increases hardness penetration and wearability. This steel's well balanced alloy content permits hardening to produce a strong, tough core and high case hardness. It machines at 110 sfm and has good welding qualities.
| Shape |
Round |
| Grade |
8620 |
| Tolerance |
Meets cold finished carbon steel bar manufacturing tolerances |
| Application |
Structural parts such as gears, pinions, spline shafts, pins and a variety of other important applications requiring a hard wear surface and a ductile core. |
Round |
For best delivery lengths should be specified as 11'/13'. |
|
| Rounds |
Standard "as drawn" finish |
| Rounds |
Ground and Polished |
| Rounds |
Turned Ground and Polished |
| Rounds |
Turned and Polished |
| Rounds |
Rough Turned |
|
| Carbon |
0.18/0.23 |
| Manganese |
0.70/0.90 |
| Phosphorus |
0.035 (Max) |
| Sulphur |
0.04 (Max) |
| Silicon |
0.15/0.35 |
| Nickel |
0.40/0.70 |
| Chromium |
0.40/0.60 |
| Molybdenum |
0.15/0.25 |
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