P20 / PDS-3 Hot Rolled Alloy Steel 28 - 32 HRC Hardness For Injection Mold
1.2311/ P20/ PDS-3 Hot Rolled Plastic Mold Steel Plate Used for Injection Mold
1.2311 P20 3Cr2Mo is a common alloy tool steel which usually supplied in QT condition. The 1.2311 steel can give an excellent polished finish and wear resistance.
Applications
Used for various lager-sized or medium-size precision plastic mould and alloy parts.
a, Ideally suited for the production of plastic moulds;
b, Die holders, zinc die casting dies, backers, bolsters and injection moulds;
c, Shafts, rails and wear strips;
Mechanical Properties
| Properties | Metric |
| Hardness, Brinell (typical) | 300 |
| Hardness, Rockwell C (typical) | 30 |
| Tensile strength, ultimate | 965-1030 MPa |
| Tensile strength, yield | 827-862 MPa |
| Elongation at break (in 50 mm (2″)) | 20.00% |
| Compressive strength | 862 MPa |
| Charpy impact (V-Notch) | 27.1-33.9 J |
| Poisson’s ratio | 0.27-0.30 |
| Elastic modulus | 190-210 GPa |
Characteristics
a, Good hardenability
b, Good integral machanical performance under high temperature
c, Good heat-resistance and fatigue-resistance,Wear Resistance
d, Good performance against liquid metal erosion
e, 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
Equivalent Grades
| GB | DIN | AISI | JIS |
| 3Cr2Mo | 1.2311 | P20 | PDS-3 |
Chemical Composition (Wt%)
| Steel Grade | C | Si | Mn | Cr | Mo | S | P |
| 1.2311 | 0.35-0.45 | 0.20-0.40 | 0.60-1.00 | 1.80-2.10 | 0.30-0.55 | ≤0.003 | ≤0.030 |
| P20 | 0.35-0.45 | 0.20-0.40 | 0.60-1.00 | 1.80-2.10 | 0.30-0.55 | ≤0.003 | ≤0.030 |
| PDS-3 | 0.35-0.45 | 0.20-0.40 | 0.60-1.00 | 1.80-2.10 | 0.30-0.55 | ≤0.003 | ≤0.030 |
Available Size (mm)
| Plate Size(mm) | Flat Bar Size(mm) | Round Bar Size(mm) | |||||
| Thickness | Width |
Length |
Thickness | Width | Length | Diameter | Length |
| 10-700 | 1600-2200 | 4000-10000 | 10-700 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 |
Recommend Hear Treatment
| Quenching | Tempering | ||||||
| Heating temperature/℃ | Cooling way | Hardness (HRC) | Heating temperature/℃ | Cooling way | Hardness (HRC) |
||
| 850-880 | Oil Cooling | 50-52 | 580-640 | Air Cooling | 28-32 | ||
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