
1.2738 718 P20+Ni Prehardened Special tool Die steel block For Injection Mold
1.2738 718 P20+Ni is used for plastic moulds of medium and big size. It can be subject to a nitriding treatment to improve it's wear resistance. Injection and thermoplastic extrusion moulds, rubber moulds, mould carrier frames, containers.
1. Features
A. uniform hardness qualitative of Material;
B. No quenching crack danger,Without heat treatment costs that can
reduce the tool cost;
C. Excellent polishing performance;
D. Good machining performance;
2. Application
A. The Organic chemical process parts contains chloride, especially in the use of acid chloride catalyst.
B. The digester and bleacherin the use of paper pulp and paper making industry.
C. Absorption tower, re-heater,gas import board, fan, blender, fair water fin, flue and so on for using in flue gas desulfurization system.
D. The equipment and parts in the use of acidic gas environments.
E. Acetic acid and anhydride reaction generator
F. Sulfur acid cooling
3. Grade
GB | AISI | DIN |
3Cr2NiMnMo | P20+Ni | 1.2738 |
4. Chemical composition(%)
C | Mn | Si | Cr | Ni | Mo | P | S |
0.35-0.45 | 1.30-1.60 | 0.20-0.40 | 1.80-2.10 | 0.90-1.20 | 0.15-0.25 | ≤0.035 | ≤0.035 |
5. Mechanical Properties:
Hardness | Y.S.(0.2%) | UTS | Elongation | RoA | Elastic Modulus | |||
HB | Mpa | KSI | Mpa | KSI | % | Z% | GPA | KSI |
300 | 826 | 120 | 993 | 145 | 17 | 59 | 205 | 29745 |
6. Hardness:33-37HRC
7. The process flow
1) Hot rolled or forged condition, Pre-harden &tempering ,
black surface
2) Hardness:30~36HRC
3) Hot rolled technology:EAF+LF+VD
Forged technology:EAF+LF+VD+ESR+Forging +QT + Machined surface
8. Our service:
Product show
Warehouse
Processing
Strict Quality Control
Guangzhou Changfeng Steel Co., LTD
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.