Guangzhou Changfeng Steel Co., LTD
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High Carbon Low Alloy Plastic Mold Steel Flat Bar P20/2311 Pre-hardened
Product Introduction
P20 is mold quality alloy steel supplied in the prehardened condition. Special melting and refining practices are utilized to produce a uniform product with exceptional cleanliness. These characteristics allow P20 to be polished to an extremely high finish required for plastic molding. The material is tested to rigorous tool steel standards to ensure uniformity of structure and freedom from defects. P-20 is supplied prehardened to 262/321 BHN. The balanced alloy composition of P20 ensures a uniform cross-sectional hardness.
2311 is in the group of tool steel for plastic mold. Offer in the condition of quenching and tempering.Hardness is in the range of 280-325 HB (29-34 HRC) , this result in high strength.Worry free for size distorted after quenching.Suitable for plastic mold with thickness less than 400 mm.Very good for polishing and suit for plastic mold that need bright surface or need texturing
Features
• Texturing ability due to low sulfer
• High Strength
• Can do EDM and Wire cut
• Homogeniety hardness throughout every area
• Risk free from bend as cause by heat treatment process
• Can do Nitriding , surface hardness at 650 HV
• Can do hard chrome , surface hardness at 1000 HV
Similar Standards
| Chinese | American | Germany | Japanese | Swedish |
| GB | AISI/ASTM | DIN | JIS | ASSAB |
| 3Cr2Mo | P20 | 1.2311 | PDS-3 | 618 |
Chemical Composition
| Grades | C | Si | Mn | P | S | Mo | Ni | Cr |
| 1.2311 | 0.37-0.42 | ≤0.40 | 1.40-1.60 | / | ≤0.005 | 0.15-0.25 | 0.4 | 1.80-2.10 |
| P20/3Cr2Mo | 0.28-0.40 | 0.20-0.80 | 0.60-1.00 | ≤0.03 | ≤0.03 | 0.30-0.55 | 0.05-0.1 | 1.40-2.00 |
Heat Treatment
| Quenching | Tempering | ||||
| Heating Temperature/℃ | Cooling | Hardness/HRC | Heating Temperature/℃ | Cooling | Hardness/HRC |
| 850-800 | Oil | 50-52 | 580-640 | Air | 28-36 |
General Applications
2311 tensile strength are at 1,000 N/mm2, this is suitable for plastic mold and steel forming tool
Such as , Injection plastic mold, especially in thermo plastic that do not require corrosive resistance
Mold frame for plasttic mold and die casting in low volume production
Sleeves and die holder for extrusion
Stock Size
| Plate | Thickness | 1.2311: 10-250mm P20: 220-460mm |
| Width | 1.2311: 2200mm P20: 1600mm | |
| Length | 1.2311: 4000-10000mm P20: 4000-8000mm | |
| Round Bar | Diameter | 12-120mm |
| Length | 4000-6000mm | |
| Die Block | Thickness | 250-800mm |
| Width | 800-1600mm | |
| Length | 2000-6000mm |
Our steel materials are in different sizes and conditions specially catered to our customers' needs. They come in round bars, flat bars, plates and blocks.
The conditions of the materials vary from pre-hardened, hot rolled,annealed, quenched and tempered to surface conditions such as black, pre-machined,griding and polish.
Why choose us?
Quality Assurance from government owned steel mills
At die & tool steel , we meticulously source materials only from steel manufacturers to ensure consistency in providing the finest quality steel products for our customers.
Being in the competitive market today, we clearly understand that customers are looking for products that are not only best in class but also affordably priced. We are confident that we are able to ful fil these two equally vital aspects –our customers' continuous support over the past two decades is the most heartfelt recognition to us.
Speedy and Timely Delivery
Knowing that delivering goods to customers' hands on time is as important as providing quality goods, we treat every business transaction as a priority. Be it a raw material or a finished material with machining or heat treatment, every effort will be made to get your purchase order to you in the shortest lead time.
Quality Commitment
In order to realise competitive products to fulfil our customers' demands and quality considerations, our integrated quality and work management system is continuously being improved and developed further. We document this for our customers by having our quality management system certified in accordance with ISO 9001. This measure is accompanied by audits and recertification's on a regularly prescribed basis.
Our service
We provide quality special steel for all industries.
Orders of any size, any length, ship fast
We carry a unique inventory of specialty special steel
Provide related value-adding services :
metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.
Sawing for small or large quantities, sawing-to-size.
Excellent customer service
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