EN353 / 20CrNiMo5
Qilu
Product Description
Alloy Engineering Steel EN353 20CrNiMo5 Hot Rolled Bars
1: BS EN353 Steel Introduction
The EN 353 alloy steel is a very high strength steel alloy that is quenched and tempered before supply and contains nickel, chromium and molybdenum to give it high tensile strength, good ductility and wear resistance. En 353 has relatively good impact properties at low temperatures and is also suitable for a wide range of high temperature applications. The EN 353 round bar has good internal strength and high external strength, which makes it have high wear resistance. The EN 353 steel round bar provides a good combination of ductility, strength and abrasion resistance. En 353 is a very high strength alloy engineering steel.
EN353 steel Stock in warehouse
2: 20CrNiMo5 Quality Standard
EN10250-3 2000 ENG Open die forging alloy steel.pdf
3: BS EN353 Steel Equivalent
| Country | China | Japan | Germany | USA | British |
| Standard | GB/T 3077 | JIS JIS G4105 | DIN (W-Nr.) EN 10250 | ASTM/SAE/AISI ASTM A29 | BS 970 |
| Grade | / | / | 20CrNiMo5 | / | EN353 |
4: BS EN353 Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| EN353 | 0.10-0.20 | 0.10-0.35 | 0.50-1.00 | 0.04 | 0.04 | 0.75-1.25 | 0.08-0.15 | 1.00-1.50 |
| 20CrNiMo5 | 0.17-0.23 | 0.17-0.37 | 0.60-0.95 | 0.035 | 0.035 | 0.40-0.70 | 0.20-0.30 | 0.25-0.75 |
5: BS EN353 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, for example, normalized, tempered, QT. If you want to know the properties, please kindly contact the salesman.
6: BS EN353 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: BS EN353 Steel Application
EN353 is suitable for many automotive applications such as heavy duty gears, shafts, pinion gears, camshafts, shaft pins.
8: Heat Treatment
Hardening temperature / ℃ : 780 - 820;
Tempering ：EN 353 reheat to 780 C – 820° C, hold until the temperature of the entire section is uniform, then quench in oil, tempering must be carried out immediately while the EN 353 assembly is still warm. Heat to 150 C – 200° C. Hardness after tempering: 62-64 HRC.
Annealing / ℃ : 630 - 670.
9: BS EN353 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 | Rough Machined or Turned: H11 | |||
| Cold Drawn Steel Round Bar | 6-100 | Black Surface: H11 | Rough Machined or Turned: H11 | |||
10: BS EN353 Steel Delivery Condion
For hot forged or hot rolled bar, usually the delivery condition is hot forged, annealed/QT, rough turned/Black surface or hot rolled, annealed/QT, Black surface.
For hot forged block, 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.
For cold drawn bar, usually the delivery condition is cold drawn, annealed/QT, peeled/black surface.
