Hot rolled D2 Cr12MOV JIS SKD11 Cold Work Tool Steel Round Bar for processing

D2 SKD11 1.2379 Cr12Mo1V1 ESR Alloy Tool Steel Round Bar/Plate/Flat Bar

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.
Our Service:
1, Sizes, materials and others are all at your requirements and can be changed;
2, Price varies on materials, dimensions, finish craft and different payments;
3, We are direct manufacture in machinery manufacturing work with experience of several decades;
4, Detail production design will be made according to information you offered;
5, We have adequate inventory, so that we can quick delivery;
6, The most important is that we have advanced equipment.

About Us
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China. With more than 20 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.

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.