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A.I.S.I. TYPE O1
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back to grades
Typical Analysis |
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C |
Mn |
Si |
Cr |
V |
Mo |
.95 |
1.20 |
.30 |
.50 |
.20 |
.50 |
General Characteristics |
Highly versatile and easy to handle in every respect, O1 has long been considered the general purpose tool room steel. Low hardening temperatures allow in-plant heat treatment even where facilities are limited, saving time and expense. Available in a wide variety of sizes and shapes, O1 is a practical selection for many tooling and maintenance applications. |
Typical Applications |
Blanking, forming, drawing, molding, trimming dies, spindles, thread gauges, collets and stamps. |
Heat Treatment (degrees in Fahrenheit) |
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Forging |
Annealing |
Preheating |
Hardening |
Tempering |
1925 to 1500 |
1400 to 1440 |
1200 to 1250 |
1450 to 1500 |
350 to 450 |
Effects of Tempering (Measured in Rockwell C) |
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| As hardened | 400 deg. F | 600 deg. F | 800 deg. F | 1000 deg. F |
| 63 to 65 | 61 to 63 | 55 to 57 | 48 to 50 | 39 to 41 |
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