1.2311 P20 Prehardening Steel Plate and Flat Bar of High Carbon
Alloy Steel
1, Features:
a,Good hardness uniformity and polishing property,good machining
properties.
b, Good integral machanical performance under high temperature.
c, Good heat-resistance and fatigue-resistance.
d, Pre-hardened to HRC28-32, can be directly used for mould
processing, shorten the construction period.
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.
2, Equivalent Grades:
| GB | DIN | AISI | JIS |
| 3Cr2Mo | 1.2311 | P20 | PDS-3 |
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 |
4, 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 |
5, Recommend Heat 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 |
6, 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;
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.
