Pre Hardened Engineering Steel Bar 33 - 37 Hardness HRC P20+Ni / 1.2738 / 718H

High Quality Pre-hardened Engineering Tool Steel Bar P20 + Ni / 1.2738 / 718H

P20+Ni is pre-hardened plastic mold steel. It is used for large, precisionk high polishing plastic moulds, such as car accessories, household appliance, electromic and audio-video products.

Equivalent grades

Chemical Composition(%)

Hardness: Pre-hardened 33-37 HRC

Available size(mm)

Features

Applications

1. Dermatoglyphics, pear skin pattern, imitation stone pattern etching.
2. Transparent plastic, such as stationery boxes, daily necessities containers high gloss more requirements.
3. Especially suitable for hard plastic (PS) and no plastic pieces (ABS) parts.
4. Car bumpers, interior parts, refrigerators, air conditioners and other large production requirements of large mold.

More about P20+Ni engineering tool steel bar

P20+Ni engineering steel is a mold steel material produced according to the German DIN standard.

It has relatively superior mechanical properties and good workability in similar grades of steel. It is mainly used for the processing and production of hot-working molds, of which plastic molds are the most widely used .

In addition, the special pre-hardened steel to the factory when it has a good hardness, can reduce the normal mold processing and heat production process, improve economic efficiency.

Physical properties

(Sample hardness 340HBW, at room temperature and high temperature conditions)

1) Temperature 20 ° C / 200 ° C / 400 ° C, density 7. 8g / cm / 7.75g / cm / 7. 7g / cm.
2) temperature 20 ~ 200 ° C / 20 ~ 400 ° C, linear expansion coefficient: 12.6 × 10K / 13.5 × 10K.
3) the temperature is 20 ° C / 200 ° C / 400 ° C, the thermal conductivity is 29.0 W · (m · K) /29.5W · (m · K) /31.0W · (m · K)
4) Temperature 20 ° C / 200 ° C / 400 ° C, Modulus of Elasticity: 205000 MPa / 200000 MPa / 185000 MPa

Mechanical properties

(Sample hardness 340HBW)

1) Temperature 20 ° C / 200 ° C / 400 ° C, Tensile strength 1100MPa / 1050MP8 / 850MPa.
2) temperature 20 ° C / 200 ° C / 400 ° C, conditional yield strength 980MPa / 925MPa / 770MPa.
3) Temperature 20 ° C / 200 ° C / 400 ° C, reduction of area 49% / 51% / 52%
4) Temperature 20 ° C / 200 ° C / 400 ° C, elongation 13% / 14% / 16%
5) Temperature 20 ° C / 200 ° C / 400 ° C, impact toughness (≥) 20J / cm / 32J / cm / 42J / cm

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.