| Customization: | Available |
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| After-sales Service: | Yes |
| Warranty: | Three Years |
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20Cr4 1.7027 SCr420 20Cr 5120 Hot Rolled Steel Plate Case-Hardening Steel
1: 20Cr4 Steel Introduction
20Cr4 is an alloy carburized steel according to EN ISO 683-17-2014, corresponding to the Chinese brand 20Cr. After heat treatment, 20Cr4 has moderate strength and toughness without tempering brittleness tendency. After chemical heat treatment, the surface has high hardness and wear resistance, and has corrosion resistance. Cold deformation plasticity is high, can be cold drawing. High temperature normalizing or tempering, good machinability, weldability is also good.
2: 20Cr4 Steel Equivalent
| Country | China | Japan | Germany | USA | |
| Standard | GB/T | JIS | DIN | ISO | ASTM |
| Grade | 20Cr | SCr420 | 20Cr4/1.7027 | 20Cr4 | 5120 |
| Grade | C | Si | Mn | P≤ | S≤ | Cr | Cu≤ |
| 20Cr4 | 0.17-0.23 | 0.15-0.4 | 0.6-0.9 | 0.025 | 0.035 | 0.9-1.2 | 0.4 |
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as annealed, Solid Solution. If you want to know the properties, kindly contact the salesman.
5: 20Cr4 Steel Overviews
| Size | Plate/Flat/Block | Thickness 3mm-100mm |
| Width 100mm-2500mm |
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| Heat treatment | Q+T | |
| Surface condition | Black; | |
| Delivery condition | Hot rolled; | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
| Application | 20Cr4 is mainly used to manufacture parts with high core strength requirements, working surfaces to withstand wear, and small sections, or carburized or carbonitriding parts with complex shapes and small loads, such as machine tool change gear, gear shaft, CAM, worm, piston pin, claw clutch and so on. It can also be used in the tempered state to manufacture parts with high working speeds and moderate impact loads. | |
6: Delivery Condition
For hot forged rolled bar, usually the delivery condition is hot forged or rolled, annealed/QT, rough turned/Black surface.
For hot forged or hot rolled bar, usually the delivery condition is hot rolled, annealed/QT, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed/QT, milled surface/Black surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed/QT, black surface.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
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