Pre-hardened Mould Steel / Black Surface Alloy Plastic Die Steel Plate Flat P20/ 1.2311/ 3Cr2Mo
Definition
1.2311/P20/3Cr2Mo steel is a general-purpose pre-hardened plastic mold steel, which is a plastic mold steel widely used in various countries.
Application
Used for various lager-sized or medium-size precision plastic mould and alloy parts.
1, Ideally suited for the production of plastic moulds;
2, Die holders, zinc die casting dies, backers, bolsters and injection moulds;
3, Shafts, rails and wear strips.
Grade
| Chinese | American | German | Japanese | Swedish |
| GB | AISI | DIN | JIS | ASSAB |
| 3Cr2Mo | P20 | 1.2311 | PDS-3 | 618 |
Chemical Composition (%)
| 1.2311 | C% | Si% | Mn% | Cr% | Mo% | S% | P% |
| 0.35-0.45 | 0.20-0.40 | 1.30-1.60 | 1.80-2.10 | 0.15-0.25 | ≤0.030 | ≤0.030 |
Available Size (mm)
| Shape | Thickness/ Diameter | Width | Length |
| Plate | 8-460 | 1600-2200 | 4000-10000 |
| Round | 12-120 | / | 4000-6000 |
| Block | 250-800 | 800-1600 | 2000-6000 |
Heat Treatment
| Annealing | 710-730ºC |
| Hardness after annealing | Max 230HB |
| Stress relieving | Approx 650ºC |
| Hot forming | 850-1050ºC |
| Hardening | 870-890ºC |
| Quenching media | Oil,salt bath,vacuum |
| Hardness after quenching | 50-54HRC |
| Hardness after tempering | 100ºC | 200ºC | 300ºC | 400ºC |
| 54HRC | 54HRC | 53HRC | 50HRC |
Characteristics
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.
Delivery Details
1) For abundant stock, 7-15 days.
2) For customized products, 15-30 days.
Picture Show:
Pre-hardened Mould Steel / Black Surface Alloy Plastic Die Steel P20/ 1.2311/ 3Cr2Mo

Changfeng Tool & Die Steel Hot Sell Products
| Steel STANDARD/GRADE | Flat Bar Size(mm) | Round bar Size(mm) | Technics |
| DIN | AISM | JIS | GB(China) | Thickness | Width | Length | Diameter | Length |
| 1.121 | SAE1050 | S50C | 50# | 10-450 | 155-2200 | 2000-12000 | | | Forged, Hot Rolled |
| 1.2311 | P20 | PDS-3 | 3Cr2Mo | 10-460 | 155-2200 | 2000-10000 | 20-200 | 2000-6000 |
| 1.2738 | P20+Ni | - | 3Cr2NiMnMo | 21-300 | 155-2200 | 2000-8000 | 20-200 | 2000-6000 |
| 1.2379 | D2 | SKD10 | SKD10 | 10-200 | 155-810 | 2000-6000 | 14-80 | 3000-6000 |
| 1.2080 | D3 | SKD1 | 3Cr2Mo | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 |
| 1.2083 | 420 | - | 4Cr13 | 10-500 | 155-1200 | 2000-6000 | 12-300 | 3000-6000 |
| 1.2344 | H13 | SKD61 | 4Cr5MoSiV1 | 10-500 | 155-1600 | 2000-6000 | 16-400 | 3000-6000 |
| 1.2510 | O1 | SKS3 | 9CrWMn | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 |
| 1.7225 | SAE4140 | SCM440 | 42CrMo | 10-280 | 155-2200 | 2000-6000 | 16-450 | 3000-6000 |
Port of loading: Shenzhen, China
Terms of Payment
30% deposit, balance by L/C at sight or T/T before shipment
Lead Time
1) For abundant stock, 7-15 days.
2) For customized products, 15-30 days.
About Us
Guangzhou Changfeng Steel Co., Ltd. is a professional special steel company, which specializing in this line in China since 2005. 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 and 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, our steel product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.
FAQ
Q: Are you a manufacturer or merely a trader?
A: We are trading company act as exporting Steel Products with our own factory,
we can manufacture the products as in cutomer's requirement,wholesale and retail all kinds of domestic mould steel,the price we offered is very competitive compared with other agents.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival. Third,the products we export are mainly from ShaGang group, WenFeng group, XingCheng group, DongTe group,DaYe and so on, the quality are certained.
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.