Introduction
This is one of the higher carbon steels used for high hardness in the fully hardened condition. In such condition the steel is more brittle than the lower carbon steels.
Chemical composition and Physical properties Of 1075 steel
| Chemical composition of 1075 Steel | |||||
Element | C | Mn | P | S | Si |
Content | 0.73 | 0.664 | 0.01max | 0.0008max | 0.317 max |
| Physical properties of 1075 Steel | ||||
| Grade | Minimum tensile strength | Modulus of elasticity | Maximum operating temperature | Rockwell hardness |
| 1075 Steel | psi x 103 160-320 | psi x 106 30 | 250°F (121°C) | C38-50 |
Application
1075 is a versatile steel suitable for beginner knifemakers, easy to forge and to heat treat at home with simple tools. It can make a blade of any size from a tiny wood carver to a sword or machete, or a guillotine blade. For many knifemakers it is what they make their first blade from and it remains a popular choice even for the experienced bladesmith forging high-end custom knives.
Other Analysis
Forging: 815-1175°C
1075 Heat Treat : Heat to 1,560°. Quench in oil.
Tempering: Temper at least once for 30 minutes. Tempering twice for two hours each time is preferred. Use the chart below to select the tempering temperature.
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