Guangzhou Changfeng Steel Co., LTD
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Forged Steel Block 1.2311 / P20 / 3Cr2Mo Special Tool Steel for Large-sized Mold
Degree of hardness and the metallography structure are even, the cutting value and the polishing performance are outstanding, can be harden by flame, plates hardly chrome and nitriding. This mould steel can apply to general requirements of the size of the plastic mould and can be operated by electric corrosion.
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;
1, Features
a, Good hardness uniformity and polishing property,good machining properties.
b, Good integral machanical performance under high temperature, Corrosion resistance
c, Good heat-resistance and fatigue-resistance,high mechanical behavior,cutting mechanical property.
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)
| Block | Thickness (mm) | Width (mm) | Length (mm) |
| 200-1000 | 800-1600 | 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, Delivery Condition
a. Hot rolled , Black, Annealed or Q+T
b. Hardness: HRC=28--34
c. Annealed Hardness: HBS<235.
About GUANGZHOU CHANGFENG STEEL Co., Ltd
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in plastic mould steel, hot work mould steel, cold work mould steel, alloy steel for mechanical, high speed steel, etc. All material are with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE, ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 30-50days (depend on the quantity)after receiving your prepayment or firm order.
Q: What is the payment term?
A: T/T or L/C or Trade Assurance.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.