Performance characteristics of S420N high yield strength steel plate
S420N high strength plate is a high strength low alloy steel plate, belonging to the European standard EN10025 series of structural steel, with excellent performance characteristics and a wide range of applications.
S420N high strength alloy steel performance characteristics
Good weldability: S420N high strength plate has good welding performance and can be connected by a variety of welding methods, such as arc welding, gas welding, etc.
Excellent cold and hot processing formability: S420N low alloy structural steel shows good formability during both cold and hot processing, and is easy to perform processing operations such as bending, curling, and shearing.
S420N high strength low alloy steel application areas
Large ships: used to manufacture key structural parts such as keels and ribs of ships.
Bridges and power station equipment: such as highway bridges, railway bridges, and load-bearing structures of power stations, etc.
Medium and high pressure boilers and high pressure vessels: used to manufacture containers and equipment that withstand high pressure and high temperature.
Chemical composition % of steel S420N hsla steel sheet
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | CEV |
| max 0.2 | max 0.6 | 1 - 1.7 | max 0.8 | max 0.03 | max 0.025 | max 0.3 | max 0.1 | max 0.2 | max 0.025 | max 0.05 | max 0.05 | max 0.02 | max 0.55 | max 0.52 |
Mechanical properties of steel S420N low alloy steel material
| Nominal thickness (mm): | to 100 | 100 - 200 | 200 - 250 |
| Rm - Tensile strength (MPa) | 520-680 | 500-650 | 500-650 |
| Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 63 | 63 - 80 | 80 - 100 | 100 - 150 | 150 - 200 | 200 - 250 |
| ReH - Minimum yield strength (MPa) | 420 | 400 | 390 | 370 | 360 | 340 | 330 | 320 |
| KV - Impact energy (J) longitud., (+N) | +20° 55 |
0° 47 |
-10° 43 |
-20° 40 |
| KV - Impact energy (J) transverse, (+N) | +20° 31 |
0° 27 |
-10° 24 |
-20° 20 |
| Nominal thickness (mm): | to 16 | 16 - 40 | 40 - 63 | 63 - 80 | 80 - 200 | 200 - 250 |
| A - Min. elongation Lo = 5,65 √ So (%) | 19 | 19 | 19 | 18 | 18 | 18 |
