STS31 cold work die steel is an excellent metal material, which is widely used in the field of cold work mold manufacturing. It has excellent wear and fatigue resistance and is able to maintain stable mechanical properties at high and low temperatures. In addition, STS31 also has good machinability and welding performance, which can be easily machined and repaired.
In cold work molds, STS31 steel has high hardness, good wear resistance, and can withstand high pressure and friction, which effectively improves the service life of the mold. At the same time, due to its excellent toughness, STS31 can resist shock and vibration, reducing the risk of mold breakage.
During the manufacturing process, STS31 steel can undergo heat treatment processes such as quenching and tempering to further enhance its mechanical properties. Through a reasonable heat treatment process, the best hardness and toughness can be obtained, and the service life and stability of the mold can be improved.
In addition, STS31 steel also has good corrosion resistance, which can maintain stable performance in harsh environments. This makes STS31 ideal for the manufacture of cold work molds that need to withstand corrosive media and humid environments.
Overall, STS31 cold work die steel is a high-performance metal material with a wide range of application prospects. It is widely recognized for its wear resistance, fatigue resistance, toughness and corrosion resistance. In the future development, with the continuous upgrading of the manufacturing industry and the continuous innovation of technology, STS31 steel will play a more important role in the field of cold work mold manufacturing.
Grade: STS31 steel for cold work molds
Chinese ISC T21319
Other names: T21201
Corresponding to standard tool steel
tool and mould steels
Categorization of tool steels
Tags: Steel for cold work molds, Alloy steel
Description Properties and uses: Leyser steel. It has high hardenability and wear resistance, small dimensional change when quenched, uniform carbide distribution and higher toughness than CR12 steel. It is suitable for making punching dies, cold shear knives, drawing dies, wire drawing dies, thread rolling boards, cold extrusion dies, measuring tools, etc. with complex shapes.
This standard is applicable to hot rolled, forged, cold-drawn, silver bright bar steel and machined delivery steel of tool and die steel, and its chemical composition is also applicable to ingots, billets and their products
STS31 chemical element composition content (%)
Composition C Si Mn P s Cr Mo V
The minimum value is 145 - 11 0.4 0.15
The maximum value is 17 0.4 0.4 0.03 0.02 12.5 0.6 0.3
Smelting method: electric arc furnace + vacuum degassing.
STS31 mechanical properties
Condition: Heat treatment or state hardness
HBW Delivery Status: Annealed 207 255
Specimen quenched HRC
Specimen heat treatment system: quenching temperature 950 1000 °C, oil cooling
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