Description
- 2311 Steel Properties
- Nearest Equivalent : P20, ASSAB618
DIN 2311 is the Pre Hardened Plastic mould steel hardness distributed evenly in large cross sections that have excellent weldability with least hardness elevation, good mirror polishability and less streak texture making finishing easier. Size Section availability upto 255mm thickness. Supply hardness is 240-280 BHN.
Relevant P20 Tool Steel Specification and Equivalent Steel Grades
| Country | USA | German | GB/T |
| Standard | ASTM A681 | DIN EN ISO 4957 | GB/T 1299 |
| Grades | P20 | 1.2311 | 3Cr2Mo |
AISI P20 Steel Plate Materials
| ASTM A681 | C | Mn | P | S | Si | Cr | Mo | |||||
| P20 | 0.28 | 0.4 | 0.6 | 1 | 0.03 | 0.03 | 0.2 | 0.8 | 1.4 | 2 | 0.3 | 0.55 |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | Mo | |||||
| 1.2311 | 0.35 | 0.45 | 1.3 | 1.6 | 0.03 | 0.03 | 0.2 | 0.4 | 1.8 | 2.1 | 0.15 | 0.25 |
P20 Steel 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 |
Application Of 2311 mould steel
Plastic mould steel equivalent to DIN 2311 use for die holders, zinc die, casting dies, backers, bolsters, injection moulds, mould frames for plastic moulds, Shoe Blocks, pressure casting moulds, recipient sleeves Etc.
2311 Steel Heat Treatment
| Soft annealing °C | Cooling | Hardness HB |
| 710 – 740 | Furnace | max. 235 |
| Hardening °C | Quenching | Hardness after quenching HRC |
| 850 – 880 | Oil or saltbath, 180 – 220 °C | 52 |
| Tempering °C after Quenching | 100 | 200 | 300 | 400 | 500 | 600 | 700 |
| HRC | 52 | 50.5 | 48.5 | 46 | 42 | 36.5 | 28 |
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