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4145
Qilu
Product Description
AISI 4145 SCM445 Steel Plate
1: 4145 Steel Introduction
4145 Steel is a high quality Quenched and Tempered Alloy Structural steel, It belong to the high quality medium carbon, Oil Quenched & Tempered Hardenss is 28-34 HRc.4145 Annealing delivery hardenss less than 250HB.
ASTM 4145 Alloy structural steel, we can supply the 4145 round bar, steel flat bar, plate, hexagonal steel bar and steel square block. 4145 steel Round bar can be sawn to your required lengths as one offs or multiple cut pieces. 4145 Rectangular pieces can be sawn from flat bar or plate to your specific sizes.
4145 steel Stock in warehouse
2: 4145 Quality Standard
3: 4145 Steel Equivalent
| Country | Japan | USA |
| Standard | JIS G4105 | AISI/ASTM ASTM A29 |
| Grade | SCM445 | 4145 |
4: 4145 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 42CrMo | 0.43-0.48 | 0.15-0.30 | 0.75-1.00 | ≤ 0.035 | ≤ 0.04 | 0.80-1.10 | 0.15-0.25 |
5: 4145 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: 4145 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: 4145 Steel Application
AISI 4145 is used for engineering structural, like high tensile shafts, bolts and nuts, gears, pinions and spindles. Locomotive traction with the big gear, supercharger drive gear, pressure vessel, rear axle, gear load of connecting rod and a spring clip,4145 can also be used to under 2000 m deep well of oil drill pipe joint and the fishing tool, and can be used for bending machine mould, etc.
8: 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.
