A comprehensive overview of S7 tool and die steel round bars, covering chemical composition, physical and mechanical properties, applications, processing methods, standards, and surface finish considerations.
S7 tool & die steel round bars offer exceptional toughness and impact resistance, making them ideal for cold and hot forging dies, extrusion dies, and other high-stress applications requiring superior durability and wear resistance.
Element | Minimum (%) | Maximum (%) |
---|---|---|
Carbon (C) | 0.45 | 0.55 |
Chromium (Cr) | 3.00 | 3.50 |
Molybdenum (Mo) | 1.30 | 1.60 |
Silicon (Si) | 0.20 | 0.60 |
Manganese (Mn) | 0.20 | 0.80 |
Phosphorus (P) | - | 0.030 |
Sulfur (S) | - | 0.030 |
S7 tool steel is commonly used in applications requiring high impact resistance, such as:
Processing:
S7 tool steel conforms to various international standards such as ASTM A681 and AISI S7.
Surface finishes for S7 tool steel round bars are typically achieved through grinding, polishing, or shot blasting, depending on the application requirements.