Punch material is a special type of steel used to manufacture key components of stamping dies, mainly divided into the following categories:
Cold work mold steel
Typical Material: CR12MOV (with a hardness of up to 60HRC after heat treatment and high toughness) 1
Processing form: Provide various specifications such as wool, precision board, light board, round steel, etc
Application features: Suitable for cold work mold scenarios such as punching and stamping, Shanghai Songjiang and other real estate developers can provide spot delivery
High speed steel
Representative model: SKH51（SKH-51）， Has high red hot hardness, wear resistance, and impact toughness
Performance advantage: Fine and uniform grain size, suitable for manufacturing complex shaped tools and stamping dies
Supply form: Smooth round, round steel, polished board, etc. Manufacturers in Dongguan and other places can provide deep processing services
Hard alloy class
Also known as tungsten steel punching rod/needle, made through powder metallurgy process
Core features: Hardness up to 92HRA, flexural strength of 4000MPa, acid and alkali corrosion resistance of 27
Special application: Precision scenarios such as tablet stamping in the pharmaceutical industry 2
Other special steels
DC53 mold steel: produced in Datong, Japan, suitable for the manufacturing of high wear-resistant punch heads
SKD11 series: produced by Baosteel, can be processed into various forms such as round bars and polished plates
The main suppliers are concentrated in Shanghai Songjiang 1, Dongguan Chang'an 6 and other places, providing customized samples, stamping and bending processing services. Some manufacturers such as Hengxin Metal are also equipped with quality testing methods such as ultrasonic flaw detection.
