Prehardened Hot Rolled Alloy Steel Flat Bar of 1.2311 P20 PDS-3 3Cr2Mo

Grade:1.2311 /P20/3Cr2Mo
Standard:AISI, ASTM, BS, DIN, GB, JIS

1.2311 P20 3Cr2Mo Steel Plate Material is a versatile, low-alloy tool steel that is characterized by good toughness at moderate strength levels. The special purpose mold steel 1.2311 P20 3Cr2Mo steel plate is commonly used for plastic injection mold cavities and tooling and for die casting dies for zinc. 1.2311 P20 3Cr2Mo mold steel plate material is typically sold in the pre-hardened condition at a hardness of approximately 300 HBW.

1.2311 P20 3Cr2Mo tool steel differs from area to area in the different countries.Europeans generally use the DIN spec-DIN EN ISO 4957 standard materials (1.2311 and 1.2312), while in Japan steel industry standard, PX5 is the new standard P20. And the Americas Countries, Grade steel P20 is the most and wide used steel grade material. In China, 3CrM2Mo is the P20 steel grade equivalent, which is in the standard GB/T 1299 tool steel specification.
AISI P20 tool steels are nitrided or carburized. These P20 mold steel materials steels are capable of being machined into complex and large dies and molds. Material 1.2311 P20 3Cr2Mo steel plate and round bars are mostly used in the carburized condition. The presence of chromium and nickel enhances the toughness and hardness of mold steel 1.2311 P20 3Cr2Mo grade material.


Physical Properties

Density: 0.284 lb/in3 (7861 kg/m3)
Specific Gravity: 7.86
Modulus of Elasticity: 30 x 106 psi (207 GPa)
Thermal Conductivity:
24 Btu/ft/hr/°F
41.5 W/m/°K
Machinability: 60-65% of a 1% carbon steel

1. Product Desciption

1.2311/P20 Mould Steel is a versatile, low-alloy tool steel that is characterized by good toughness at moderate strength levels.

1.2311 Mould steel is commonly used for plastic injection mold cavities and tooling and for die casting dies for zinc.

P20 is typically sold in the pre-hardened condition at hardness of approximately 300 HBW.

Characteristics as following:

1, Good hardenability
2, Good integral machanical performance under high temperature
3, Good heat-resistance and fatigue-resistance
4, Good performance against liquid metal erosion
5, High putity and homogeneous structure of China's biggest ESR production base for its strict requirement in the whole process of exploitation,smelting,vacuum degassing,ESR,forging,annealing,inspection


2.Available size

3.Chemical analysis Chemical composition(for reference only)

4.Compared grades(based on usage)

5.Delivery Condition

1.Hot rolled, black,
2.Hardness:HRC=28--33,
3.Annealed Hardness:HBS<=235.


6.Application

1.2311 P20 3Cr2Mo plastic mould steel is ideally suited for the production of plastic moulds. Typical applications include die holders, zinc die casting dies, backers, bolsters and injection moulds. The versatility of P20 plastic mould steel with its high tensile characteristics enables uses for a variety of other applications such as shafts, rails and wear strips

Good mechanincal property, make surface have equal hardness after deal with it, Nice polishing , for some mini.Roughness on the surface which can be dealed with induration in advance.It can be used directly after the mould machined, deal with surface induration necessity.
1.2311 P20 3Cr2Mo is a pre-hardened high tensile tool steel which offers ready machineability in the hardened and tempered condition, therefore does not always require further heat treatment .This eliminates the risks, cost, and waiting time of heat treatment and avoids the associated possibility of distortion or even cracking.Subsequent 1.2311 component modifications can easily be carried out.


7.Delivery date

Abundant stock, 15-20 days.
Customized products, 30-50 days.


8.Packaging: Standard export standard or as customer's request

Loading Photo

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.