Stainless steel can be divided into

Austenitic type: include 304, 321, 316, 310, etc

Martensitic or ferritic type: include 430, 420, 410, etc

Martensite or ferrite is magnetic, but austenite is either non-magnetic or rather faintly magnetic. Therefore, 316 is non-magnetic or weakly magnetic.

Chemical composition of 316 stainless steel

316 stainless steel due to the addition of Mo element, so that its corrosion resistance, and high temperature strength has been greatly improved, high temperature resistance can reach 1200-1300 degrees, can be used under harsh conditions.

Stainless steel is generally a general term for stainless steel and acid-resistant steel. Stainless steel refers to the steel that is resistant to the corrosion of weak media such as atmosphere, steam and water, while acid-resistant steel refers to the steel that is resistant to the corrosion of chemical etching media such as acid, alkali and salt. Stainless steel since the beginning of the 20th century, to 2013 has more than 100 years of history. The invention of stainless steel is a major achievement in the history of world metallurgy, and the advancement of stainless steel has created a crucial material and technological base for the growth of contemporary industry as well as for scientific and technological advancement. There are numerous types of stainless steel with various characteristics, and over the growth process, they have progressively created multiple categories. According to the structure, it is divided into four categories: Martensitic stainless steel (including precipitation hardening stainless steel), ferritic stainless steel, austenitic stainless steel and austenitic ferrite duplex stainless steel. According to the main chemical composition of steel or some characteristic elements in steel to classify, divided into chromium stainless steel, chromium nickel stainless steel, chromium nickel molybdenum stainless steel and low carbon stainless steel, high molybdenum stainless steel, high purity stainless steel; According to the performance characteristics and uses of steel, it is divided into nitric acid resistant stainless steel, sulfuric acid resistant stainless steel, pitting stainless steel, stress corrosion resistant stainless steel, high-strength stainless steel, etc. According to the functional characteristics of steel, it is divided into low-temperature stainless steel, non-magnetic stainless steel, free-cutting stainless steel, super-plastic stainless steel and so on.The commonly used classification method in 2013 is classified according to the organizational structure characteristics of steel and the chemical composition characteristics of steel and the combination of the two methods. Typically split into the following categories: martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, duplex stainless steel, precipitation hardening stainless steel, or divided into the two categories of chromium stainless steel and nickel stainless steel.

316 stainless steel chemical composition:

Carbon C: ≤0.08

Si: ≤1.00

Mn: ≤2.00

Sulfur S: ≤0.030

P: ≤0.035

Chromium Cr: 16.00 ~ 18.50

Nickel: 10.00 ~ 14.00

Molybdenum Mo: 2.00 ~ 3.00

316 stainless steel Features:

Corrosion resistance

The corrosion resistance is better than 304 stainless steel, and it has good corrosion resistance in the production process of pulp and paper. Additionally, 316 stainless steel is resistant to both the corrosive industrial environment and saltwater erosion.

Heat resistance

In intermittent use below 871°C(1600°F) and continuous use above 927C°(1700°F), 316 stainless steel (06Cr17Ni12Mo2) has good oxidation resistance.In the range of 427°C-857°C(800°F-1575°F), it is best not to use 316 stainless steel continuously, but when 316 stainless steel is used continuously outside this temperature range, the stainless steel has good heat resistance.The resistance of 316L stainless steel to carbide precipitation is better than 316 stainless steel, which can be used in the above temperature range.

High strength

Higher strength and tensile strength than 304 stainless steel.

Good workability

Can carry out a variety of processing and forming, suitable for a variety of forming processes.

Beautiful appearance

Smooth surface, with good decorative;

Heat treatment

The process of annealing takes place between 1850 and 2050 °F, is followed by rapid annealing, and is then quickly cooled.Heat treatment cannot harden 316 stainless steel.

weldding

316 stainless steel has good weldability.All standard welding methods can be used for welding.When welding, 316Cb, 316L or 309Cb stainless steel filler rods or welding rods can be used according to the use.In order to obtain the best corrosion resistance, the welded section of 316 stainless steel needs to be annealed after welding.If 316L stainless steel is used, post-welding annealing is not required.

The main uses of 316 stainless steel include the following aspects:

Marine engineering: 316 stainless steel has excellent resistance to seawater corrosion, and has been widely used in Marine engineering fields such as ships, offshore platforms, and submarine pipelines.

Chemical production: 316 stainless steel can resist the erosion of most harmful chemicals, so it is often used as a manufacturing material for storage tanks, reactors and other equipment in the chemical production process.

Pharmaceutical manufacturing: 316 stainless steel has less impact on pharmaceuticals and is easy to clean and disinfect, so it is often used as a manufacturing material for pharmaceutical processing and storage equipment.

Food processing: 316 stainless steel is a food grade stainless steel, can be used in the manufacture of food processing equipment, tableware, kitchenware and other utensils.

Medical devices: 316 stainless steel has good biocompatibility and corrosion resistance, and has been widely used in the manufacturing field of medical devices, such as artificial joints, dental instruments, surgical instruments, etc.

Architectural decoration: 316 stainless steel has beautiful appearance, strong texture, and strong anti-fouling performance, and is often used as interior decoration materials in the field of architectural decoration.