Alloy steel cold work steel din1.2379 AISI D2 Cr12Mo1V1 MOV tool steel plate

Hot rolled alloy steel cold work steel D2 Steel Bar for tooling and die

Introduction
With high wear-resisting cold working die steel, SKD11 steel has the properties of high strength and high wear resistane, replace a new generation imported common cold working die steel with high odburability high wear-resisting.

Key words:
DC53, 1.2990, GS-821, ASSAB 88, SLD-MAGIC, AISI D2, W.-Nr. 1.2379

Chemical Composition (%)

Product Description

Recommend heat treatment:

D2 SKD11 1.2379 Characteristic
1, the high obdurability is higher than that of 1.2379, and the wear- resisting property is good.
2, the high obdurability is more than two times than 1.2379, overcome the weakness of traditional with easy tip or craze, high temperature resistance tempering stability better than that of 1.2379/D2,in general and precision mold domain can replace 1.2379/D2, its use performance is the same type cold die imported, Characteristic curve of quenching and temper.

Heat Treatment

1) Forging

Heat the 1.2379 tool steel slowly and uniformly to 700°C then more rapidly to 900-1040°C. After forging cool down slowly.

2)Annealing

As supplied 1.2379 is in the annealed and machineable condition. Re-annealing will only be necessary if the steel has been forged or hardened by the toolmaker. To anneal, heat slowly and uniformly to 900°C. Soak for three to four hours and allow to cool in the furnace to room temperature. Re-heat to 800-1040°C and again soak for three to four hours. Allow to cool in the furnace to room temperature.

3)Stress Relieving

If tools are heavily machined, ground or otherwise subjected to cold work, the relief of internal strains is advisable before hardening to minimise the possibility of distortion. Stress relieving should be done after rough machining. To stress relieve, heat the 1.2379 steel component to 600-650°C. Soak well and cool in the furnace or in air. The tools may then be finish machined before hardening.

4)Hardening

It is preferable to heat the tools in a controlled atmosphere. If this is not possible, pack hardening is recommended. A reducing atmosphere is desirable. Pre heat the 1.2379 tool steel component to 750-800°C. and allow to soak at this temperature. The tool temperature should then be brought up to 1000-1040°C for air cooling, or 980°C for oil quenching. Soak thoroughly at the temperature for thirty minutes per 25mm of ruling section, then cool or quench accordingly. It is important not to exceed 1020°C when heating for hardening.

5)Tempering

Double tempering of is recommended. The tempering should be done with the least possible delay after hardening, preferably when the tools are still hand warm. Select a suitable tempering temperature, bearing in mind the service requirements. Heat slowly and uniformly. When the 1.2379 component has reached the desired temperature, soak for at least sixty minutes. The second tempering should be a repetition of the first.

Products show:
Cold Work Alloy Tool Steel for Cutters D2 SKD11 1.2379 round & flat bar

Features:
A,High wear resistance and toughness.
B,Alternative to oil harding tool steel.
C, Offer a measure of corrosio resistance when polished.

Application
A,Used for making various high precision,long-life cold work mould.
B,Cold heading die, thermosetting resin molding mold, senior gauge, etc.
C,Deep drawing forming die, cold extrusion dies.

FAQ

Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.

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.