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New Materials

As vehicles and ships are becoming lighter in weight all around the world, steel plates are quickly developing higher strength.

However, steel material knives used to cut these high-strength steels cannot keep up with the steel plates due to the lack of high-performance tooling steel materials. DAE WON IN MUL CO., LTD. is developing new materials to supply the knives that can cut high-strength steels.

H13, which has been used to make knives for decades, has strong toughness, but lacks wear resistance and rigidity.

D2 has strong wear resistance and rigidity, but lacks toughness. As these materials are not suitable for cutting high-strength steels, DAE WON IN MUL Co., Ltd. has developed 27K57V and PSD1 that deliver wear resistance, rigidity, and toughness to contribute to the high-strength steel production in the steelmaking industry.

27K57V

27K57V was developed for stainless steel cutting knives and patented in 2001. It has been widely used for cutting steels with outstanding performance.

Characteristics
The material that has improved the material properties of AISI H13 (DIN X40MoV51, JIS SKD61) and AISI D2 (DIN X155CrVMo12-1, JIS SKD11).
The material that satisfies wear resistance, strength, and toughness.
Applications
Shear Knife, Double Side Shear Knife, Slitter Knife, Side Trimmer Knife, Scrap Chopper Knife etc
Places of use
Cold-rolling plants, stainless steel plants, electrical steel plants, thick plate plants, etc
Suitable for cutting
High-tension steels, high-carbon steels, stainless steel, and other high-strength steels

PSD1

PSD1 has improved 27K57V to make the knives that can cut high-strength steels (high- tension steels, high-carbon steels,
etc). It was patented in 2012. It has been tested on the knives used at various plants and prevents the frequent breaking of knives used to cut steels to prove its excellent performance.

Characteristics
Maintained the wear resistance and rigidity of 27K57V and improved its toughness.
Maintains toughness to prevent breaking when cutting very hard steels.
Applications
Shear Knife, Double Side Shear Knife, Slitter Knife, Side Trimmer Knife, Scrap Chopper Knife etc
Places of use
Cold-rolling plants, stainless steel plants, electrical steel plants, thick plate plants, etc
Suitable for cutting
High-tension steels, high-carbon steels, stainless steel, and other high-strength steels

Hardness

Material Properties