The main characteristics and uses of austenitic stainless steel S31608 0Cr17Ni12Mo2

S31608 Austenitic Stainless Steel

S31608 (0Cr17Ni12Mo2) austenitic stainless steel is a low carbon version of S31600 austenitic stainless steel, which has better resistance to chloride-ion stress corrosion cracking due to the addition of Mo.

Chemical Composition

The chemical composition of S31608 austenitic stainless steel is outlined in the following table.

Element Content (%)

Carbon, C 0.030

Manganese, Mn 2.00

Silicon, Si 0.75

Phosphorus, P 0.040

Sulfur, S 0.030

Chromium, Cr 16.50-18.50

Nickel, Ni 10.50-13.00

Molybdenum, Mo 2.50-3.00

Iron, Fe Balance

Product Forms

S31608 stainless steel is available in the form of bars, rods, plates, sheets, pipes, flanges, forgings, and tubing. It is commonly produced by hot working and can be cold worked to produce higher strength and well as harder and closer dimensional tolerance.

Corrosion Resistance

S31608 austenitic stainless steel has excellent resistance to general and localized corrosion by organic acids including formic and acetic acid. It also exhibits good resistance to inorganic acids, including phosphoric acid, nitric acid, sulfuric acid, and hydrochloric acid.

Mechanical Properties

The mechanical properties of S31608 austenitic stainless steel are outlined in the following table.

Properties Metric Imperial

Tensile strength 515 MPa 74500 psi

Yield strength 205 MPa 29700 psi

Elongation at break 40% 40%

Rehardening potential Yes Yes

Toughness Good Good

Hardness (Brinell) 215 215

Hardness (Vickers) 285 285

Applications

S31608 austenitic stainless steel is used in the production of various fuel tanks, condensers, evaporators, and heat exchangers. It is also used in the chemical processing, pharmaceutical, food and beverage, and water treatment industries. The material is used in medical equipment and in medical implants such as hip prostheses and pacemakers. Additionally, the material is often used in valves, pipes, pump shafts, and pressure vessels.

Typical applications for this stainless steel include:

• Piping systems

• Valves

• Heat exchangers

• Pressure vessels

• Condensers

• Evaporators

• Fuel tanks

• Medical implants

• Chemical processing equipment

• Pharmaceutical industry containers

• Food and beverage industry containers

• Water treatment equipment

• Pump shafts

• Structural components.

0Cr17Ni12Mo2 Austenitic stainless steel, also known as AISI316 is a widely-used stainless steel grade which is suitable for a wide range of applications due to its excellent corrosion resistance and good heat resistance properties. It has excellent mechanical properties, including high tensile and yield strengths, good formability and excellent weldability.

0Cr17Ni12Mo2 is a stainless steel grade of low carbon, austenitic, corrosion resistant Cr-Ni-Mo alloy, characterized by high corrosion resistance, excellent toughness and strength, as well as good high temperature performance. In addition, it offers excellent formability and low temperature toughness.

The applications of 0Cr17Ni12Mo2 stainless steel include architectural applications, general fabrication and repair of food-processing equipment; it’s used mainly for chemical, desalination and offshore oil production, because of its superior corrosion resistance, even in severe conditions; it is also used for structural components of chemical plants, petrochemical plants, power plants and nuclear energy plants, including bearings and valves, as well as power plant frames, piping, fans and blowers, motors and centrifuges.

0Cr17Ni12Mo2 stainless steel is also used extensively in construction in facades, architectural cladding, rain screens, thermal barrier protection and engineering structures, especially in chemical and coastal environments.

In addition, 0Cr17Ni12Mo2 can also be used to manufacture medical instruments and components, such as surgical scissors and scissors blades. Moreover, it is used in kitchen equipments, such as cooking pans and kitchen utensils. 0Cr17Ni12Mo2 is also used as a corrosion resistant material for pumps, valves and for many other mechanical applications.

In summary, 0Cr17Ni12Mo2 is a very versatile stainless steel that is mainly used for its excellent corrosion resistance properties, especially for its ability to withstand harsh and explosive environments. In addition, the good mechanical properties, weldability and formability makes it suitable for a wide range of applications.