Stainless Steel Performance
1. Corrosion resistance
The stainless steel plate has the ability to withstand general corrosion similar to the unstable nickel-chromium alloy 304. Long-term heating in the temperature range of chromium carbide may affect alloys 321 and 347 in harsh corrosive media. Mainly used in high-temperature applications. High-temperature applications require materials to have strong sensitization resistance to prevent intergranular corrosion at lower temperatures.
2. High-temperature oxidation resistance
Stainless steel plates have high-temperature oxidation resistance, but the oxidation rate will be affected by inherent factors such as exposure environment and product form.
3. Physical properties
The total heat transfer coefficient of a metal depends on other factors besides the thermal conductivity of the metal. In most cases, the heat dissipation coefficient of the film, the scale, and the surface condition of the metal. Stainless steel can keep the surface clean, so its heat transfer is better than other metals with higher thermal conductivity.
Liaocheng Suntory Stainless Steel provides technical standards for stainless steel plates: high-strength stainless steel plates with excellent corrosion resistance, bending workability, the toughness of welded parts, and excellent stamping workability of welded parts and their manufacturing methods.
Specifically, it contains C: 0.02% or less, N: 0.02% or less, Cr: 11% or more, and less than 17%, appropriate content of Si, Mn, P, S, Al, Ni, and satisfies 12≤Cr Mo 1.5Si≤ 17. Stainless steel plates with 1≤Ni 30(CN) 0.5(Mn Cu)≤4, Cr 0.5(Ni Cu) 3.3Mo≥16.0, 0.006≤CN≤0.030 are heated to 850～1250℃, and then heated at 1℃/s The above cooling rate cooling heat treatment.
In this way, it can be a high-strength stainless steel plate with a martensite content of more than 12% by volume, high strength of more than 730 MPa, corrosion resistance and bending performance, and excellent toughness of the welded heat-affected zone. Reusing Mo, B, etc., can significantly improve the stamping performance of welded parts.
Oxygen and gas flame cannot cut stainless steel plates because stainless steel is not easy to be oxidized.
5CM thick stainless steel plates should be processed with special cutting tools, such as:
(1) Laser Cutting machine with larger wattage
(2) Hydraulic saw
(3) Grinding disc
(4) Human handsaw
(5) Wire Cutting machine.
(6) High-pressure water jet cutting (professional water jet cutting: Shanghai Xinwei)
(7) Plasma arc cutting