Prehardening 1.2311, P20, 3Cr2Mo Plastic Mold Steel for Injection
Mould
Prehardening 1.2311 P20 3Cr2Mo tooling steel is a common alloy tool steel which usually supplied in QT
condition. The 1.2311 P20 P20 3Cr2Mo can give an excellent polished finish.Forging prehardening tempering 1.2311 P20 P20 3Cr2Mo tool steel is one of the most widely used material for machine cut
plastic moulds. This grade also provides excellent wear resistance.
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 |
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 |
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
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;
Delivery Condition
a, Hardness:HRC=28--33,
b, Annealed Hardness:HBS<=235.
Our service
Our company have introduced large-sized vertical saw machines, horizontal saw machines, milling machines, grinding machines and other advance equipments, we can export our products by wholesales
and retail sales, whole plate or strip is available. All our
products can meet the standards of DIN, AISI, JIS and GB, all the material
should be inspected the ultrasonic, hardness and others strict inspection
process before the shipment.
a, Sizes, materials and others are all at your requirements and can
be changed;
b, Price varies on materials, dimensions, finish craft and
different payments;
c, We are direct manufacture in machinery manufacturing work with
experience of several decades;
d, Detail production design will be made according to information
you offered;
e, We have adequate inventory, so that we can quick delivery;
f, The most important is that we have advanced equipment.
