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20MnCr5
Qilu
Product Description
20MnCr5 Alloy Round Steel Forged Steel
1: 20MnCr5 Steel Introduction
20MnCr5 steel is a common alloy carburizing steel which has a wide range of applications in industrial manufacturing. This steel is characterized by high surface hardness, maintaining high toughness in the core, good hardenability and good wear resistance. Its chemical composition includes carbon, silicon, manganese, chromium, molybdenum and other elements, of which carbon is one of the most important elements in steel, which, together with alloying elements, forms an alloy carburizer, which improves the surface hardness and wear resistance of steel. Silicon and manganese can refine the organization of steel and improve the strength and toughness of the material. Chromium and molybdenum further enhance the wear and corrosion resistance of steel.
20MnCr5 Steel Stock in Warehouse
2: 20MnCr5 Quality Standard
20MnCr5 steel according to EN 10250.
3: 20MnCr5 Steel Equivalent
| Country | China | Germany |
| Standard | GB/T 3077 | DIN (W-Nr.) EN 10250 |
| Grade | 20CrMn | 20MnCr5 / 1.7147 |
4: 20MnCr5 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr |
| 20MnCr5 | 0.17-0.22 | 0.40 | 0.10-0.40 | 0.035 | 0.035 | 1.00-1.30 |
| 20CrMn | 0.17-0.23 | 0.17-0.37 | 0.90-1.20 | / | / | 0.90-1.20 |
5: 20MnCr5 Steel Mechanical Properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment will cause different mechanical properties, for example, normalized, tempered, QT. If you want to know the properties, please kindly contact the salesman.
6: 20MnCr5 Steel Overviews
Size | Round | Dia 6-1200mm |
Plate/Flat/Block | Thickness | |
Width | ||
Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
Delivery condition | Forged; Hot rolled; Cold drawn | |
Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
Payment terms | T/T;L/C;/Money gram/ Paypal | |
Trade terms | FOB; CIF; C&F; etc.. | |
Delivery time | 30-45 days | |
7: 20MnCr5 Steel Application
20MnCr5 is widely used in mechanical parts that require high wear resistance and high surface hardness, mainly including:
Automobile industry: used to manufacture gears, bearings, camshafts, crankshafts and other important parts.
Mechanical manufacturing: used to produce high wear-resistant mechanical parts, such as gear teeth, connecting rods, bushings and so on.
Other fields: applied to sprockets, pins and other parts with high surface hardness and wear resistance requirements.
8: 20MnCr5 Steel Heat Treatment
Preheating
First, the workpiece is heated to an appropriate temperature of 550-650 degrees Celsius, a step that prepares it for subsequent hardening and tempering treatments.
Hardening
Subsequently, the workpiece is quickly cooled by immersing it in oil or water to rapidly cool the steel and achieve high hardness.
Tempering
After quenching, the workpiece is heated to an appropriate temperature of 150-250 degrees Celsius, held for a period of time and then cooled. This step is designed to remove quenching stresses while improving toughness.
9: 20MnCr5 Steel Tolerance
Diameter(mm) | Tolerance | ||
Forged Steel Round Bar | 80-600 | Black Surface:0~+5 | Rough Machined or Turned:0~+3 |
650-1200 | Black Surface:0~+15 | Rough Machined or Turned:0~+3 | |
Hot Rolled Steel Round Bar | 16-310 | Black Surface:0~+1 | Peeled:H11 |
Cold Drawn Steel Round Bar | 6-100 | Black Surface:H11 | Peeled:H11 |
10: Delivery Condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed or QT, black surface or rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed or QT, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed or QT, black surface.
