Guangzhou Changfeng Steel Co., LTD
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Injection Plastic Mold Alloy Steel Plate / Flat Bar 1.2311 / P20
Similar grades: DIN-1.2311, AISI-P20, JIS-PDS-3, GB-3Cr2Mo
Chemical Composition(%):
| C | Si | Mn | S | P | Cr | Mo |
| 0.28-0.40 | 0.20-0.40 | 1.30-1.60 | ≤0.030 | ≤0.030 | 1.80-2.10 | 0.15-0.25 |
Available size(mm):
| Flat Bar Size(mm) | Round bar Size(mm) | |||
| Thickness | Width | Length | Diameter | Length |
| 10-700 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 |
Delivery state:
For 10-250MM thickness,hot rolled,black surface;
For up 250MM thickness,forging,black surface,
and can offer forging block,for 300-800 thickness precessed by Bao steel/Shagang group;
Feature:
1, Good hardness uniformity and polishing property,good machining properties.
2, Good integral machanical performance under high temperature.
3, Good heat-resistance and fatigue-resistance.
4, Pre-hardened to HRC30-36, can be directly used for mould processing, shorten the construction period.
5, 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.
Recommend heat treatment:
| Quenching | Tempering | ||||||
| Heating temperature/℃ | Cooling way | Hardness (HRC) | Tempering temperature /ºC | Tempering number | Hardness (HRC) | ||
| First preheating | Second preheating | Last heating | |||||
| 850-880 | 1130-1150 | ≥850 | Oil Cooling | 50-52 | 200 | 2 | ≥48 |
Applications:
1, Plastic molds for injection compressing and injection molding.
2, TV cabinets,drum mold of washing machine,etc.
3, Often used in the manufacture of television cabinet, washing machine, refrigerator inner shell, buckets, etc.
4, Main components of overloading mold.
Packing: Standard Export Packing or As per request
Devlivery condition:
Hot rolled or forged, black surface, pre-hardened or tempering to 28-33HRC.
Quality Condition:
1. Both end of each bar must be cut
2. Ladle furnanced and vacuum de-gassed
3. Show heat No. on each bar
4. Surface condition the surface of the hot rolled square bar shall befree cracks, scar and wrinkles that affect the use of the billets. In case there is the above-mentioned defect, it shall be remove.
5. The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract.
Products show:
| Hot sale products for hot/cold work mould Steel | |||||||||
| STANDARD/GRADE | Flat Bar Size(mm) | Round bar Size(mm) | Technics | ||||||
| DIN | AISM | JIS | GB(China) | Thickness | Width | Length | Diameter | Length | |
| 1.2311 | P20 | PDS-3 | 3Cr2Mo | 10-700 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 | Forged, Hot Rolled |
| 1.2738 | P20+Ni | - | 3Cr2NiMnMo | 10-1100 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 | |
| 1.2379 | D2 | SKD10 | SKD10 | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.2080 | D3 | SKD1 | 3Cr2Mo | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.2083 | 420 | - | 4Cr13 | 10-500 | 155-1200 | 2000-6000 | 20-300 | 3000-6000 | |
| 1.2344 | H13 | SKD61 | 4Cr5MoSiV1 | 10-500 | 155-1600 | 2000-6000 | 20-400 | 3000-6000 | |
| 1.2510 | O1 | SKS3 | 9CrWMn | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.7225 | SAE4140 | SCM440 | 42CrMo | 10-200 | 155-2200 | 2000-6000 | 20-200 | 3000-6000 | |
| 1.2010 | SAE1050 | S50C | 50# | 10-700 | 155-2200 | 3000-6000 | 10-300 | 3000-6000 | Hot Rolled |
| 1.1191 | SAE1045 | S45C | 45# | 10-700 | 155-2200 | 3000-6000 | 10-300 | 3000-6000 | |