carbon steel plate,steel coil,stainless steel plate,china export service provider.
carbon steel plate,steel coil,stainless steel plate,china export service provider.
When choosing stainless steel plates, it is essential to consider the operating conditions, such as whether the operation is manual or automated, the performance and type of the hot press, and the quality requirements of the pressed material, including hardness and gloss. Economic factors should also be considered, ensuring that newly polished stainless steel plates can produce high-quality decorative plates multiple times.
Additionally, selecting the most appropriate thickness of the stainless steel plates involves considering its service life, quality, rigidity, and the strength requirements under pressure. Other factors include heat conduction performance, pressure distribution, and the specifications of the press plate.
If the thickness of the steel plate is insufficient, it may bend easily, adversely affecting the production of decorative plates. Conversely, if the thickness is too great, the plate becomes excessively heavy, increasing costs and creating operational difficulties. Allowances for processing and usage must also be factored in. While there is no absolute uniformity in copper plate thickness, efforts should be made to ensure consistency within a single plate. Typically, medium-sized saw plates have a thickness tolerance of 0.05 to 0.15 millimeters. Excessively stringent thickness requirements will increase grinding costs. Generally, stainless steel plates with high tensile strength and hardness are more resistant to mechanical damage and have a longer service life, but grinding and processing costs are also higher.
Carbon (C):
Increases deformation resistance and tensile strength.
Enhances hardness and wear resistance.
Chromium (Cr):
Increases hardness, tensile strength, and toughness.
Provides wear and corrosion resistance.
Cobalt (Co):
Enhances hardness and strength, allowing for high-temperature quenching.
Used in complex alloys to enhance the properties of other elements.
Copper (Cu):
Improves corrosion resistance.
Enhances wear resistance.
Manganese (Mn):
Increases hardenability, wear resistance, and tensile strength.
Removes oxygen during melting and helps in deoxidation.
In large quantities, it increases hardness but also brittleness.
Molybdenum (Mo):
Improves strength, hardness, hardenability, and toughness.
Enhances machinability and corrosion resistance.
Nickel (Ni):
Increases strength, hardness, and corrosion resistance.
Phosphorus (P):
Increases strength, machinability, and hardness, but excessive amounts can cause brittleness.
Silicon (Si):
Enhances ductility.
Increases tensile strength.
Removes oxygen during melting.
Sulfur (S):
In small amounts, improves machinability.
Tungsten (W):
Increases strength, hardness, and toughness.
Vanadium (V):
Increases strength, hardness, and shock resistance.
Electrochemical Corrosion: Dust or foreign metal particles containing other metallic elements on the stainless steel surface can form a micro-cell in humid air, causing an electrochemical reaction that damages the protective film.
Organic Corrosion: Adherence of organic substances (e.g., vegetable juice, soups, phlegm) can form organic acids in the presence of water and oxygen, leading to corrosion over time.
Localized Corrosion: Contact with substances containing acids, alkalis, or salts (e.g., alkali water from wall decorations) can cause localized corrosion.
Chemical Corrosion: In polluted air (containing sulfides, carbon oxides, nitrogen oxides), condensation can form acids (e.g., sulfuric acid, nitric acid, acetic acid), leading to chemical corrosion.
The corrosion resistance of stainless steel plates mainly depends on their alloy composition (chromium, nickel, titanium, silicon, aluminum, manganese, etc.) and internal structure, with chromium playing a key role. Chromium provides high chemical stability and forms a passive film on the steel surface, isolating the metal from the external environment and enhancing corrosion resistance. If this passive film is damaged, corrosion resistance decreases.