CRWMN steel is a high-carbon, high-chromium tool steel with excellent wear and corrosion resistance. It is widely used in the manufacture of cutting tools, stamping dies and wear-resistant parts, etc. CRWMN steel has a carbon content of up to 103% with a chromium content of 091%, these elements give it high hardness and high wear resistance. In addition, the steel contains tungsten and manganese, which help improve its toughness, thermal stability, and corrosion resistance.
CRWMN steel exhibits excellent mechanical properties during quenching and tempering. After quenching, it is able to achieve high hardness, making it ideal for the manufacture of knives and other tools that require high wear resistance. The tempering process can improve its toughness and impact resistance, making it more reliable in the manufacture of molds and wear-resistant parts with complex shapes.
In addition, CRWMN steel also has good performance for heat treatment processes. It can be quenched above HRC62 while maintaining good toughness. This steel can achieve higher hardness and better wear resistance when tempered at low temperatures, and better toughness and impact resistance when tempered at high temperatures.
Due to the excellent properties of CRWMN steel, it is widely used in various industrial fields. In the field of cutting tools, it can be used to make high-performance tools such as milling cutters, turning tools and drills. In the field of stamping dies, it can be used to manufacture molds with complex shapes and high wear resistance requirements. In the field of wear-resistant parts, it can be used to manufacture high-strength wear-resistant parts such as wear plates, wear strips, and wear rings.
In conclusion, CRWMN steel is a high-carbon and high-chromium tool steel with excellent properties, and its wear resistance, corrosion resistance and mechanical properties are excellent. It is widely used in the fields of cutting tools, stamping dies and wear-resistant parts, and has achieved good results.
Grade: CRWMN steel for cold work molds
Chinese ISC T21290
Other names T20111
Corresponds to GB T 1299-2014
Tool and mould steels
Categorization of tool steels
Tags: Steel for cold work molds, Alloy steel
Description Characteristics and uses: Oil quenched steel. Due to the carbide formation of tungsten, it has more excess carbide, higher hardness and wear resistance and better toughness than 9SICR steel after quenching and low temperature tempering. However, the steel is more sensitive to the formation of carbide network, if there is a network of carbide, the edge of the tool and die is in danger of peeling, thereby reducing the service life of the tool. Steel with carbide nets must be forged or normalized depending on its severity. It is suitable for making taps, dies, reamers, special milling cutters, small dies, etc
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
Crwmn chemical element composition content (%)
Composition C Si Mn P s Cr W
The minimum value is 09 - 0.8 - 0.9 1.2
The maximum value is 105 0.4 1.1 0.03 0.02 1.2 1.6
Smelting method: electric arc furnace + vacuum degassing.
CRWMN mechanical properties
Condition: Heat treatment or state hardness
HBW Delivery Status: Annealed 207 255
Specimen quenched HRC
Specimen heat treatment system: quenching temperature 800 830 °C, air cooling
1 Approximate Comparison Table Steel for plastic molds
China, Japan, United States, International Organization for Standardization, Germany
gb isc jis astm iso din en/din w-nr.
crwmn t21290 sks 31 7 105wcr1 105wcr6 1.2419
t20111)
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