301 stainless steel pipe

301 stainless steel (video introduction) corresponds to China’s new brand: 12Cr17Ni7 and the old brand 1Cr17Ni7.

chemical composition%

C: ≤0.15,
Si: ≤1.0,
Mn: ≤2.0,
Cr: 16.0～18.0,
Ni: 6.0-8.0,
S: ≤0.03,
P: ≤0.045

301 stainless steel yield strength (N/mm2) ≥205
Tensile strength ≥520 Elongation (%) ≥40
Hardness HB ≤187 HRB ≤ 90 HV ≤ 200
Density 7.93 g·cm-3
Specific heat c(20℃)0.502 J·(g·C)-1
Thermal conductivity λ/W (m·℃)-1 (at the following temperature/℃) 20 100 500 12.1 16.3 21.4
Linear expansion coefficient α/(10-6/℃) (between the following temperatures/℃) 20～100 20～200 20～300 20～400 16.0 16.8 17.5 18.1
Resistivity 0.73 Ω·mm2·m-1
Melting point 1398～1420℃
Mechanical properties
Tensile strength σb (MPa): ≥520
Conditional yield strength σ0.2 (MPa): ≥205
Elongation δ5 (%): ≥40
Area shrinkage ψ (%): ≥60
Hardness: ≤187HB; ≤90HRB; ≤200HV
Heat treatment specifications and metallographic structure
Heat treatment specifications: solid solution 1010~1150℃ rapid cooling.
Metallographic structure: The structure is characterized by austenitic structure.
A kind of high-alloy steel that can resist corrosion in the air or chemically corrosive media. Stainless steel has a beautiful surface and good corrosion resistance. It does not need to undergo surface treatment such as color plating, but can utilize the inherent surface properties of stainless steel and is used in many applications. A type of steel, often called stainless steel. Representative performance include 13 chromium steel, 18-8 chromium-nickel steel and other high alloy steels. From a metallographic point of view, because stainless steel contains chromium, a very thin chromium film is formed on the surface. This film isolates the oxygen that intrudes into the steel and plays a role in corrosion resistance. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium. 304 is a versatile stainless steel that is widely used to make equipment and parts that require good comprehensive properties (corrosion resistance and formability). 304 stainless steel is a brand of stainless steel produced in accordance with American ASTM standards. 304 is equivalent to my country's 06Cr19Ni10 (0Cr18Ni9) stainless steel. 304 contains 18% chromium and 8% nickel. 301 is the most widely used stainless steel and heat-resistant steel. Used in food production equipment, Xitong chemical equipment, nuclear energy, etc. Chemical composition specifications of 304 stainless steel C Si Mn P S Cr Ni (nickel) MoSUS431 ≤0.08 ≤1.00 ≤2.00 ≤0.05 ≤0.03 18.00-20.00 8.25~10.50 -304 is 0Cr18Ni9. 301 (17Cr-7Ni-Carbon) material: Compared with 304 steel, it has less Cr and Ni content. The tensile strength and hardness increase during cold working. It is non-magnetic, but it becomes magnetic after cold working. Applications: trains, aircraft, conveyor belts, vehicles, bolts, springs, screens. Note: L stands for low carbon. For example, 304L has lower carbon content than 304. H and S represent high temperature resistance. For example, 310S is more heat-resistant than 310, and 304H is more heat-resistant than 304.

Stainless steel will not corrode, pit, rust or wear. Stainless steel is also one of the strongest materials among metal materials used in construction. Because stainless steel has good corrosion resistance, it allows structural components to permanently maintain the integrity of their engineering design. Chromium-containing stainless steel also combines mechanical strength and high elongation, making it easy to process and manufacture components and meeting the needs of architects and structural designers.

Most usage requirements are to maintain the original appearance of the building for a long time. When determining the type of stainless steel to choose, the main considerations are the required aesthetic standards, the corrosive nature of the local atmosphere, and the cleaning regime to be adopted.
Increasingly, however, other applications are simply seeking structural integrity or impermeability. For example, roofs and side walls of industrial buildings. In these applications, the cost of construction to the owner may be more important than aesthetics, and the surface may not be very clean.
The effect of using 304 stainless steel in dry indoor environments is quite good. However, maintaining its appearance outdoors in the countryside and cities requires frequent cleaning. In heavily polluted industrial areas and coastal areas, the surface will be very dirty and even rusty. But to achieve aesthetic results in outdoor environments, nickel-containing stainless steel is required. Therefore, 304 stainless steel is widely used in curtain walls, side walls, roofs and other construction purposes. However, in severely corrosive industries or marine atmospheres, it is best to use 316 stainless steel.

Q: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.

 

Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

 

Q:What are the shipping ports?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.

 

Q:About 301 seamless stainless steel product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.