Black Tool Steel , Machining Tool Steel With Outstanding Mirror Grinding

Special Plastic Tool Steel Bar With Extremely Good Mirror Grinding

Chemical Composition(%)

Available size(mm)

Use range

Generally used in the mirror polishing mold, anti-dust, TV filter, cosmetics boxes, precision wrinkles processing molds, office automation equipment, auto parts EDM mold.

Transparent products or products that require smoothness, such as household products, automobiles, cameras, computers and other products on the transparent mold.

● Thickness of not more than 2MM thin sheet, high-efficiency blanking die, die and die impulse mode.
● various scissors, inserts, woodworking blade.
● Thread rolling die and wear-resistant slider.
● cold heading die, thermosetting resin molding.
● Deep drawing die, cold extrusion die

Characteristic

1. Pre-hardened steel, without any heat treatment (factory state: age hardening, HRC37 ~ 42 ℃);
2. The most suitable for pre-polished steel mirror processing;
3 discharge machining characteristics:
4. ① after treatment of the surface is very good, can replace the etching processing;
4. ② in the discharge (EDM) processing, the surface hardness will not increase, which can simplify the subsequent processing steps.
5. Good weldability, surface scraps will not be hardened, which can simplify the subsequent process;
6. Toughness, excellent mechanical properties, reduce the fear of rupture and other issues.

Grinding processability

than other steel easy to reach the mirror requirements, because of the following two points:

1) Minimize pinholes due to double melting and refining.
2) Because it is low-carbon precipitation hardened steel, but with a detailed and uniform microstructure. Before grinding and polishing, the surface must first achieve the required flatness, straightness, and the correct shape and size.

Performance comparison

In addition to the various features of the NAK55, the has the following features:

1, Mirror grinding is extremely good.
2, EDM surface meticulous, beautiful, therefore, can replace pears eclipse flowers.

Use comparison

compared with the NAK55, suitable for the following performance occasions:

1, Transparent products, such as emphasis on mirror grinding
2, Pay attention to the EDM surface

Our Advantages

1. High quality and professional manufacturer

2. Advanced equipments for testing and manufacturing

3. Customized service according to your inquiry

4. Short lead time

5. Good after-sale service

Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.

To ensure provide high quality products to customers, we have close cooperation with many Chinese first class special steel enterprises, including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel, Daye Special Steel. We have thousand tons of stock materials in our own factory and also can provide processing services to customers. We are full of export experience for many years, the product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.

After years of development, the company has established a complete quality management and export service system. We have a group of experienced and competent elites and is capable of offering the best service to clients. Our company equips with large-sized Vertical saw machines, Horizontal saw machines, Milling machines, Grinding machines and other advanced equipments to provide customers with cutting and other processing services. All the products should be inspected the metallographic analysis, hardness, ultrasonic flaw detection and other strict inspection processes, which meet the standards of DIN, AISI, JIS and GB to ensure their function and quality.

Our company keeps the principle of “sincerely cooperation, endless striving for perfection”. We desire to establish the long-term mutual beneficial and win-win relationship with clients all over the world.