Distribution box shell
Disclosed by distribution box manufacturer: raw material price analysis of stainless steel distribution box:
304 stainless steel is a kind of common stainless steel. It is also called 18 / 8 stainless steel in the industry. Its anti-corrosion function is better than 30 stainless iron, corrosion-resistant and high temperature resistant, and its processing function is good. Therefore, it is widely used in industry, furniture decoration and food medical profession, such as: some advanced stainless steel tableware, bathroom kitchen appliances, stainless steel distribution box.
Density 7.93 g / cm3
304 is equivalent to 0Cr18Ni9 of our country [according to GB / T 20878-2007, it has been changed to 06cr19ni10] stainless steel.
Although this kind of stainless steel is very common in China, the title "304 stainless steel" comes from the United States. Many people think that 304 stainless steel is a type of Japanese title, but in a serious sense, Japan's official title for 304 stainless steel is "SUS304". There are three common marking methods in the market, 06cr19ni10, s30408 and SUS304. Among them, 06cr19ni10 is generally marked with national standard production, s30408 is generally marked with ASTM standard production, and SUS 304 is marked with Japanese standard production.
304 is a universal stainless steel, which is widely used in manufacturing equipment and parts that need excellent inductive functions (corrosion resistance and formability). In order to adhere to the inherent corrosion resistance of stainless steel, it is necessary for steel to be rich in more than 17% chromium and more than 8% nickel. 304 stainless steel is a trademark of stainless steel produced according to American ASTM standard.
304 stainless steel is the most widely used chromium nickel stainless steel. As a widely used steel, it has excellent corrosion resistance, heat resistance, low temperature strength and mechanical properties. It has good hot working performance such as stamping and zigzag, and no heat treatment hardening appearance (no magnetism, operating temperature - 196 ℃ - 800 ℃). It is resistant to corrosion in the atmosphere. If it is industrial atmosphere or heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for food processing, storage and transportation. It has excellent processing function and weldability. Plate heat exchanger, corrugated pipe, household products (Class 1 and 2 tableware, cabinet, indoor pipeline, water heater, boiler, bathtub), auto parts (windshield wiper, muffler, mold products), medical appliances, building materials, chemistry, food industry, agriculture, ship parts, etc. 304 stainless steel is a national food grade stainless steel.
Most applications require long-term adherence to the original surface of the building. In determining the type of stainless steel to be selected, the first consideration is the required aesthetic standards, the corrosiveness of the local atmosphere and the cleaning principles to be selected. However, other applications continue to add only to seek structural integrity or impermeability. For example, the roofs and side walls of industrial buildings. In these applications, the creation cost of the owner may be more important than the aesthetic, and the surface is not very clean. In the dry indoor environment, the use of 304 stainless steel is quite good. However, in villages and cities, if they want to maintain their appearance in the wild, they need to be cleaned frequently. In the polluted industrial area and coastal area, the surface will be very dirty and even rusty.
However, in order to achieve the aesthetic effect in the field environment, it is necessary to select stainless steel containing nickel. Therefore, 304 stainless steel is widely used for curtain wall, side wall, roof and other building purposes, but in the corrosive industrial or marine atmosphere, 316 stainless steel is the best choice. Stainless steel sliding doors, we have fully realized the advantages of using stainless steel in structural application. There are several planning principles that include 304 and 316 stainless steel. As "duplex" stainless steel 2205 has integrated excellent atmospheric corrosion resistance with high tensile strength and elastic limit strength, it is also included in the European principles. In fact, stainless steel is made of full standard metal shapes and standards, and there are many extra shapes. The most commonly used products are made of sheet and strip steel, as well as medium and heavy plates for extra products, such as hot-rolled structural steel and kneaded structural steel. There are also round, elliptical, square, rectangular and hexagonal welded or seamless steel pipes and other products, including profiles, bars, wires and castings.
