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Product Details:
Payment & Shipping Terms:
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| Shape: | Round Bar / Steel Plate / Flat Bar | Diameter: | 20-200mm |
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| Length: | 2000-6000mm | Surface Treatment: | Black / Grinding / Polished / Peeled / Turned |
| Standard: | GB/T 1299-1985 | Process: | EAF+LF+VD+ESR |
| High Light: | tool steel flat bar,hardened tool steel |
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Good Machining Performance Special Tool P20 Steel Round Bar Black Surface
Main introduction:
P20 / 1.2311 / 3Cr2Mo is an internationally widely used plastic mold steel, its good mechanical properties, high hardenability can make Larger cross-section steel to obtain more uniform hardness, and this steel has good polishing performance and high mold surface finish.
When using this steel mold, usually make quenching and tempering treatment first that the hardness is HRC28 ~ 35 (pre-hardened), and then by cold working manufactured molds can be used directly.
In this way, it can guarantee the using performance of the mould, and avoid deformation of the mold causes by heat treatment.
Similar grades:
| GB | DIN | AISI | JIS |
| 3CR2Mo | 1.2311 | P20 | PDS-3 |
Chemical composition(%):
| Grade | C | Si | Mn | S | P | Cr | Mo |
| 1.2311 | 0.35-0.45 | 0.20-0.40 | 1.30-1.60 | ≤0.030 | ≤0.030 | 1.80-2.10 | 0.15-0.25 |
| P20 | 0.28-0.40 | 0.20-0.80 | 0.60-1.00 | ≤0.030 | ≤0.030 | 1.4-2.00 | 0.30-0.55 |
Application:
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.
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.
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 | 28-36 | ||
Available size(mm):
| Flat Bar Size(mm) | Round bar Size(mm) | |||
| Thickness | Width | Length | Diameter | Length |
| 10-250 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 |
Surface treatment:
Round bar: Black / grinding / polished / peeled / turned.
Steel plate: Black / milling / machined
Delivery condition:
Hot rolled or forged, black surface, pre-hardened or tempering to 28-33HRC/30-35HRC.
Terms of payment:
30% deposit T/T and the balance by L/C at sight, or T/T.
Corner of our warehouse:
About GUAGNZHOU CHANGFENG STEEL CO.,LTD
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China. With more than 20 years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.
To ensure provide high quality products to customers, we have close cooperation with many Chinese first class special steel enterprises, including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel, Daye Special Steel.
We have thousand tons of stock materials in our own factory and also can provide processing services to customers. We are full of export experience for many years, the product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.
After years of development, the company has established a complete quality management and export service system. We have a group of experienced and competent elites and is capable of offering the best service to clients.
Our company equips with large-sized Vertical saw machines, Horizontal saw machines, Milling machines, Grinding machines and other advanced equipments to provide customers with cutting and other processing services.
All the products should be inspected the metallographic analysis, hardness, ultrasonic flaw detection and other strict inspection processes, which meet the standards of DIN, AISI, JIS and GB to ensure their function and quality.
