1.3343 high-speed steel is tungsten-molybdenum-based general-purpose high-speed steel. 1.3343 high-speed steel has the advantages of small and uniform carbide, high toughness, and good thermoplasticity. It is a high-alloy steel tool steel containing a variety of alloying elements, and belongs to the Lystenite type of steel. It has high hardness, high wear resistance, high thermal hardness, high hardenability, sufficient plasticity and toughness, and has good casting, forging, welding and machining properties, so it occupies an important position in tool steel.
1.3343 Chemical composition of high-speed steel
| element | C | Si | Mn | Cr | Mo | W | S | P | V |
| content | 0.9 | 0.3 | 0.3 | 4.1 | 5.0 | 6.4 | 0.03 | 0.03 | 1.9 |
1.3343 high-speed steel is mainly used to make heavy loads, complex shapes, and valuable tools (such as scrapers, gears, milling cutters, drills, tapping cutters, etc.), cold forging dies, forging tools, strip cutters, heading molds, cold heading dies, extrusion tools, cold stamping dies, cold stamping dies, punches and dies, all kinds of drill bits, tools that bear vibration and impact loads, deep drawing tools, metal cutting saw edges, etc.
1. 3343 high-speed steel processing treatment
Quenching: oil; tempering temperature 540~560 degrees Celsius; Box furnace 63HRC, salt bath furnace 64HRC.
