Guangzhou P20 / 1.2311 Special Tool Steel bar for Plastic Mould
P20 tool steel bar is a type of mold welding consumables, suitable for the production of plastic mold and die-casting low melting point metal mold material.
It has good machinability and mirror grinding performance.
Delivery condition
Hot rolled or forged, black surface, pre-hardened or tempering to 28-33HRC/30-35HRC
Equivalent grades
AISI: P20
DIN: 1.2311
GB: 3Cr2Mo
JIS: PDS-3
Chemical Composition(%)
C: 0.28-0.4
Si: 0.20-0.80
Mn: 0.60-1.00
S: ≤0.030
P: ≤0.030
Cr: 1.4-2.00
Mo: 0.30-0.55
Available size(mm) for P20 Special Tool Steel
| Plate/Flat Bar Size(mm) | Round bar Size(mm) |
| Thickness | Width | Length | Diameter | Length |
| 10-700 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 |
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 | 28-33 |
P20 Tool Steel bar Feature
A. Good heat-resistance and fatigue-resistance
B. Good integral mechanical performance under high temperature
C. Good hardness uniformity and polishing property,good machining properties
D. Pre-hardened to HRC30-36, 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
P20 Tool Steel bar Applications
1. Main components of overloading mold
2. TV cabinets,drum mold of washing machine,etc.
3. Plastic molds for injection compressing and injection molding
4. Often used in the manufacture of television cabinet, washing machine, refrigerator inner shell, buckets, etc
A high degree of micro-purity and excellent homogeneous structure, excellent polishing and photolithography.
After heat treatment, processing and polishing performance is good, can be nitriding treatment, suitable for chrome plating and other surface treatment, material hardness (to 400mm thick), good toughness, good machinability.
About Guangzhou Changfeng Steel
Guangzhou Changfeng Steel Co., Ltd is a mould steel stockist, we have our own mould steel factory and trading company. Our main steels are carbon tool steel, plastic mold steel, hot work tool steel, cold work tool steel, Hot Rolled alloy steel for mechanical, etc.
We provide all materials with high quality and competitive price.
Advantages of Guangzhou Changfeng Steel
- We are a stockist who have a lot of stocks all the time, we can arrange fast shipment
- All products 100% pass UT test before the shipment.
- The 3rd party inspection is accept.
- Low MOQ request
- TT, LC payment are both accepted
- High quality, you won’t have any quality problems
Product Tags:
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Special Tool Steel Bar Pre - Hardened Condition P20 / 1.2311 For Plastic Mould Images
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