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20MnCrS5
Qilu
Product Description
20MnCrS5 DIN 1.7149 QT Alloy Structural Steel Quenching Steel
1: 20MnCrS5 Steel Introduction
20MnCrS5 has good hardenability and quenching properties, and its hardness and wear resistance can be improved by carburizing and quenching processes. 20MnCrS5, imported from Germany, is equivalent to 20CrMnH steel in China. It is carburized steel and can also be used as quenched and tempered steel. The hardenability is good, the heat treatment deformation is small, the low temperature toughness is good, the machinability is good, but the weldability is poor.
20MnCrS5 Steel Stock In Warehouse
2: 20MnCrS5 Quality Standard
DIN17210 1986-ENG Case-hardening-steels.pdf
3: 20MnCrS5 Steel Equivalent
| Country | China | Japan | Germany | USA |
| Standard | GB/T | JIS | DIN (W-Nr.) DIN 17210 | AISI/ASTM |
| Grade | / | / | 20MnCrS5/1.7149 | / |
4: 20MnCrS5 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr |
| 20MnCrS5/1.7149 | 0.17-0.22 | 0.40 | 1.10-1.40 | 0.035 | 0.02-0.035 | 1.00-1.30 |
5: 20MnCrS5 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: 20MnCrS5 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: 20MnCrS5 Steel Application
20MnCrS5 is commonly used in the manufacture of mechanical parts that require high strength and wear resistance, especially for transmission shafts, connecting rods and other parts subject to high loads and high speeds. It can also be used as a large cross-section, high-load carburized parts and tempered parts, such as gears, shafts, worm gears, sleeves, friction wheels.
8: 20MnCrS5 Steel Heat Treatment
Annealing: 20MnCrS5 steel is heated to a temperature in the range of about 800°C to 850°C and then cooled appropriately to relieve stress, improve machinability and provide proper grain size and organization.
Normalizing: 20MnCrS5 steel is heated to temperatures in the range of approximately 870°C to 900°C and then air cooled. Normalizing can be used to resize crystals, increase hardness and strength while improving toughness.
Quenching: 20MnCrS5 steel is heated to temperatures in the range of approximately 850°C to 880°C and then rapidly cooled to room temperature or to a low-temperature medium (e.g., oil or water). Quenching allows the steel to cool rapidly, creating a hard and brittle organizational structure and improving the hardness and wear resistance of the steel.
Tempering: Quenched 20MnCrS5 steels usually require tempering to improve toughness and reduce internal stresses. Tempering temperatures are usually chosen between 150°C and 300°C, depending on the desired balance of hardness and toughness.
9: 20MnCrS5 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 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.
