1.4547
1.4547Chemical composition:
Cr | Ni | Mo | Cu | N | C | Si | Mn | P | S | |
Min | 0.5 | 17.5 | – | 0.5 | 0.18 | ≤ | ||||
Max | 1 | 18.5 | 6.5 | 1 | 0.22 | 0.02 | 0.8 | 1 | 0.03 | 0.01 |
1.4547Physical properties:
Densityg/cm³ | Specific heat capacity/J·(kg·K)-1 | Linearexpansioncoefficient(20~100℃)/10-5·K-1 | Thermalconductivityλ/W·(m·K)-1 | Magneticpermeability(20℃) μ/H·m-1 |
8.0 | 500 | 16.5 | 13.5 | 1.01 |
1.4547Mechanical properties:
temperature/℃ | Mechanical performance | ||||
σb/MPa | σp0.2/MPa | δ₅/% | hardness(HB) | ak/(J·cm-2) | |
20 | ≥650 | ≥300 | ≥35 | ≤210 | 120 |
50 | ≥635 | ≥270 | |||
100 | ≥615 | ≥235 | |||
200 | ≥560 | ≥195 | |||
300 | ≥525 | ≥175 | |||
400 | ≥510 | ≥160 |
1.4547Alloy properties:
The structure of HuaNickel 1.4547 steel is a single austenite structure in the solid solution state, but it is affected by the thermal experience, such as carbide and intermetallic phase compounds will precipitate in the heat affected zone during thermal processing and after welding, because the carbon content in the steel is very low, it is mainly the precipitation of intermetallic phases such as x-phase, σ phase, η phase and Cr₂N
1.4547Uses of alloys:
This steel is mainly used for equipment and components that are resistant to seawater corrosion; bleaching units in the pulp and paper industry, structural parts for flue gas desulfurization; Containers and pipelines for handling and conveying halogen-containing media, as well as oil refining units, etc.
1.4547Process performance:
Welding process: This steel has good welding performance, and can be welded by the common method of welding stainless steel, without preheating before welding and heat treatment after welding.
Heat treatment: The heat treatment process of this steel is to heat it to 1150 °C and then cool it quickly.
Relevant standards:
ASTM A240、ASME SA240、ASTM A276、ASME SA276、ASTM A312/ASMES A312; 4、ASTM A182、ASME SA-182