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20MoCr4
Qilu
Product Description
DIN 20MoCr4/1.7321 Alloy Steel Special Steel
1: 20MoCr4 Steel Introduction
The structure of 20MoCr4 steel is martensite + ferrite + residual austenite (TRIP), which provides excellent strength and toughness. Among them, martensite is formed by 0.4% of carbon and alloying elements, ferrite is composed of iron and a small amount of carbon, residual austenite is composed of martensite in the part of the martensite has not been converted to ferrite and ferrite more than the volume of ten percent of the martensite.
20MoCr4 Steel Stock In Warehouse
2: 20MoCr4 Quality Standard
DIN17210 1986-ENG Case-hardening-steels.pdf
3: 20MoCr4 Steel Equivalent
| Country | China | Japan | Germany | USA |
| Standard | GB/T | JIS | DIN (W-Nr.) DIN 17210 | AISI/ASTM |
| Grade | / | / | 20MoCr4/1.7321 | / |
4: 20MoCr4 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 20MoCr4/1.7321 | 0.17-0.23 | 0.40 | 0.70-1.00 | 0.025 | 0.035 | 0.30-0.60 | 0.40-0.50 |
5: 20MoCr4 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, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
6: 20MoCr4 Steel Overviews
| Size | Round | Dia 6-1200mm |
| Plate/Flat/Block | Thickness 6mm-500mm | |
| Width 20mm-1000mm | ||
| 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: 20MoCr4 Steel Application
20MoCr4 is widely used in the fields of automobile, machinery, airplane and ship. Among them, it is mainly used in the automobile field for components such as wheel hubs, gears and bearings; in the machinery field for the manufacture of machine tools, molds and tools; and in the aerospace field for the manufacture of key components such as engines and wing frames.
8: 20MoCr4 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 |
9: Delivery Condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
