What is a stainless steel sheet?
Stainless steel sheet is generally a general term for stainless steel sheet and acid-resistant steel sheet. Coming out at the beginning of this century, the development of stainless steel sheets has laid an important material and technical foundation for the development of modern industry and scientific and technological progress. The stainless steel sheet has a smooth surface, high plasticity, toughness and mechanical strength, and is resistant to corrosion by acids, alkaline gases, solutions and other media. It is an alloy steel that is not easy to rust, but it is not absolutely rust-free. Stainless steel sheet is the most widely used steel in Pakistan's production and construction. There is a bright future in this industry.
Types of stainless steel sheets
There are many types of stainless steel sheets with different properties. It has gradually formed several categories in the development process. According to the organizational structure, it is divided into four categories: austenitic stainless steel sheet, martensitic stainless steel sheet (including precipitation hardening stainless steel sheet), ferritic stainless steel sheet, and austenitic plus ferritic duplex stainless steel sheet. According to the main chemical composition or some characteristic elements in the steel sheet, it can be divided into chromium stainless steel sheet, chromium-nickel stainless steel sheet, chromium-nickel-molybdenum stainless steel sheet, low-carbon stainless steel sheet, high-molybdenum stainless steel sheet, high-purity stainless steel sheet, etc. According to the performance characteristics and uses of the steel sheet, it is divided into nitric acid resistant stainless steel sheet, sulfuric acid resistant stainless steel sheet, pitting corrosion resistant stainless steel sheet, stress corrosion resistant stainless steel sheet, high strength stainless steel sheet, etc. According to the functional characteristics of the steel sheet, it is divided into low-temperature stainless steel sheet, non-magnetic stainless steel sheet, free-cutting stainless steel sheet, superplastic stainless steel sheet, etc. The commonly used classification method is to classify according to the structural characteristics of the steel sheet, the chemical composition characteristics of the steel sheet, and the combination of the two. It is generally divided into martensitic stainless steel sheet, ferritic stainless steel sheet, austenitic stainless steel sheet, duplex stainless steel sheet and precipitation hardening stainless steel sheet, etc. or divided into two categories: chromium stainless steel sheet and nickel stainless steel sheet.
We manufacture and sell a wide range of steel sheet products. The models are complete. It can fully meet the requirements of Pakistani customers for products. One-stop shopping for all the stainless steel products you need. If you don't find the stainless steel product you need on our website, please also contact us.
Properties of stainless steel sheet
Corrosion resistance of stainless steel sheets
Stainless steel has a similar ability to resist general corrosion as the unstable nickel-chromium alloy 304. Prolonged heating in the temperature range of the chromium carbide level may affect the performance of alloys 321 and 347 in harsh corrosive media. Primarily used in high temperature applications which require the material to have strong resistance to sensitization to prevent intergranular corrosion at lower temperatures.
High temperature oxidation resistance of stainless steel sheets
All stainless steel sheets have high temperature oxidation resistance, but the oxidation rate will be affected by inherent factors such as exposure environment and product shape.
Physical properties of stainless steel sheets
The overall 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 keeps the surface clean, so it transfers heat better than other metals with higher thermal conductivity. Liaocheng Suntory Stainless Steel provides 8. Technical standards for stainless steel sheets High-strength stainless steel sheets with excellent corrosion resistance, bending performance, toughness of welded parts, and stamping performance of welded parts and their manufacturing methods. Specifically, 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 satisfy 12≤Cr Mo 1.5Si≤ 17. The stainless steel sheet with 1≤Ni 30(C N) 0.5(Mn Cu)≤4, Cr 0.5(Ni Cu) 3.3Mo≥16.0, 0.006≤C N≤0.030 is heated to 850～1250°C, and then carried out at 1°C/s Heat treatment for cooling above the cooling rate. In this way, it can become a high-strength stainless steel sheet with a structure containing more than 12% martensite by volume, high strength above 730MPa, corrosion resistance and bending performance, and excellent toughness in the welding heat-affected zone. Reusing Mo, B, etc. can significantly improve the stamping performance of the welded part. Oxygen plus gas flame cannot cut stainless steel sheet because stainless steel is not easy to be oxidized.
We have many years of production experience, advanced production equipment and skilled operators. The stainless steel sheet we produce has super corrosion resistance, high temperature oxidation resistance and physical properties. Our products are recognized by customers in more and more countries, including Pakistan. We are also getting more and more orders from all over the world. We enable you to get the highest quality steel products at the best price. Come and consult.
Stainless steel sheet selection essentials
1. Before selecting the stainless steel sheet, it is necessary to consider the use of the stainless steel sheet and the environment in which it is used. For example, sanitary stainless steel sheets should be used in medical treatment or kitchens. Generally, 200 series materials can be used indoors, 304 and other materials should be used outdoors, and materials above 316 should be used in acid-alkaline places or coastal areas.
2. When selecting stainless steel sheet, its material and quality must be determined. Take 304 material as an example: a. From the price analysis, if the 304 material stainless steel sheet is even lower than the general price of 301 material in the market, it must be carefully identified, it is likely to be faked by other materials; b. You can ask for the manufacturer's quality certificate as a proof ; c, available acid reagent test. For example, after 30 seconds, material 304 does not change color, and material 201 turns black; d. For bulk purchases, samples can be taken and sent to the national authoritative testing center for component testing.
To put it simply, when purchasing stainless steel sheets, the first step is to determine the type and quantity you need. The second step is to choose a manufacturer whose quality and price meet your expectations. Among them, the most important thing is to select a manufacturer that meets your expectations. We are specialized in stainless steel sheet production for many years. Our steel products are of high quality, well stocked and prices are competitive in the market. If you want to do stainless steel business in Pakistan, we are definitely your most suitable partner.
Packaging of stainless steel sheets
We will ensure that the product is fully packaged before shipping to the customer. Careless packaging may result in contamination of the stainless steel sheet or even damage to its performance. We generally wrap the outermost layer of the stainless steel sheet with a waterproof membrane. In order to avoid surface scratches, special wood such as rubber or sleepers can also be used. Gloves should be worn when handling to avoid surface contamination from fingerprints. The stainless steel sheet should be fixed with steel sheets around it, and then sealed with packing tape, so as to ensure the smooth transportation of the stainless steel sheet. Of course, Pakistani customers can also specify the packaging method, and we will operate according to your requirements to ensure your satisfaction.
Storage and transportation of stainless steel sheets
Although stainless steel is resistant to air, steam, water and other weak corrosive media or has stainless steel, the following issues should be paid attention to during storage and transportation:
Storage of stainless steel sheets
When storing, pay attention to moisture, dust, oil, lubricating oil, etc., as well as rust on the surface, or poor welding and corrosion resistance. When moisture is immersed between the film and the steel sheet substrate, the corrosion rate is faster than that without the film. When storing stainless steel in the warehouse, it should be kept in a clean, dry and ventilated place, and the original packaging should be kept. The stainless steel with the film should avoid direct light, and the film should be checked periodically. If the film deteriorates (the life of the film is 6 months), it should be replaced immediately. If the packaging material is soaked during paper padding, the paper pad should be removed immediately to prevent surface corrosion.
Transportation of stainless steel sheets
In order to avoid scratching the surface of the stainless steel sheet during transportation and handling, special lifting tools, such as slings, should be used when hoisting, and wire ropes cannot be used.
When transporting stainless steel sheets, reasonable transport tools should be used, and clean and isolated protective measures should be implemented to prevent dust, oil, and rust from contaminating stainless steel.
The above are the precautions for stainless steel storage and transportation. Meticulous storage and transportation are a good way to protect stainless steel sheets. As a stainless steel sheet manufacturer in China with many years of export experience, we have our own methods in the storage and transportation of stainless steel sheets, and there is no mistake in the delivery process to customers. Absolutely guarantee the integrity of the goods. To make customers feel at ease. Customers in Pakistan please rest assured to trade with us.