What is 0Cr18Ni12Mo2Cu2 stainless steel?

0Cr18Ni12Mo2Cu2 is the stainless steel grade of China GB/T 1220-1992 standard. 0Cr18Ni12Mo2Cu2 stainless steel has better corrosion resistance and pitting corrosion resistance than 0Cr17Ni12Mo2. 0Cr18Ni12Mo2Cu2 stainless steel is used for sulfuric acid resistant materials. 0Cr18Ni12Mo2Cu2 is equivalent to Japan's SUS316J1  stainless steel

What is the chemical composition of 0Cr18Ni12Mo2Cu2 stainless steel?

0Cr18Ni12Mo2Cu2 stainless steel is a molybdenum-containing austenitic stainless steel with higher resistance to chemical attack. This steel has a higher chromium content than SUS316J stainless steel, making it ideal for use in corrosive environments.

The specific chemical composition is as follows:

Carbon C:≤0.08

Silicon Si:≤1.00

Manganese Mn:≤2.00

Sulfur S:≤0.030

Phosphorus P :≤0.035

Chromium Cr:17.00~19.00

Nickel Ni:10.00~14.50

Copper Cu:1.00~2.50

Molybdenum Mo:1.20~2.75

What are the mechanical properties of 0Cr18Ni12Mo2Cu2 stainless steel?

0Cr18Ni12Mo2Cu2 is a chromium-nickel-molybdenum austenitic stainless steel with good creep resistance and enhanced resistance to pitting, stress corrosion cracking and intergranular corrosion. It has excellent mechanical properties at both high and sub-zero temperatures. The addition of molybdenum makes the alloy more resistant to corrosion in chloride environments, while the addition of chromium increases its resistance to oxidation and other forms of hot corrosion. The mechanical property parameters of 0Cr18Ni12Mo2Cu2 stainless steel are as follows:

Tensile strength σb (MPa):≥520

Conditional yield strength σ0.2 (MPa):≥205

Elongation δ5 (%):≥40

Reduction of area ψ (%):≥60

Hardness: ≤187HB; ≤90HRB; ≤200HV

What are the physical properties of 0Cr18Ni12Mo2Cu2 stainless steel? 

0Cr18Ni12Mo2Cu2 stainless steel is a molybdenum-containing austenitic stainless steel. It has better corrosion resistance than SUS316 and SUS316L stainless steel.

The physical properties of 0Cr18Ni12Mo2Cu2 stainless steel are as follows:

Density: 7.93 g/cm3

Melting point: 1399-1454°C

Thermal conductivity: 16.3 W/(m K)

Specific heat capacity: 500 J/(kg K)

What is the heat treatment specification for 0Cr18Ni12Mo2Cu2 stainless steel?

0Cr18Ni12Mo2Cu2 stainless steel heat treatment:

1. Annealing: The annealing process of Cr18Ni12Mo2Cu2 stainless steel includes heating the material in the temperature range (1010-1150°C), and then cooling in air or water. This process helps to increase ductility and toughness.

2. Solution treatment (austenitization): The austenitization process of 0Cr18Ni12Mo2Cu2 stainless steel includes heating the material in the temperature range (1100-1250°C), and then cooling it in air or water. This process results in complete dissolution of all carbides, providing a homogeneous austenitic microstructure that facilitates the subsequent cold working process.

3. Cold processing: 0Cr18Ni12Mo2Cu2 stainless steel can be cold processed by stamping, drawing, heading and other methods. This process helps to increase the strength and hardness of the material.

4. Heat treatment: The heat treatment of 0Cr18Ni12Mo2Cu2 stainless steel is to heat the material in the temperature range (1000-1100 ℃), and then cool it in air or water. This process helps achieve desired mechanical properties such as strength and hardness levels.

What is the delivery status of 0Cr18Ni12Mo2Cu2 stainless steel?

Generally, it is delivered in a state of heat treatment, and the type of heat treatment is specified in the contract; if it is not specified, it is delivered in a state of no heat treatment.

What is the corrosion resistance of 0Cr18Ni12Mo2Cu2 stainless steel?

0Cr18Ni12Mo2Cu2 stainless steel is a molybdenum-containing stainless steel. It has better corrosion resistance than SUS304 and SUS316 stainless steel and is very suitable for applications in harsh environments.

How about the weldability of 0Cr18Ni12Mo2Cu2 stainless steel? 

0Cr18Ni12Mo2Cu2 stainless steel is an austenitic stainless steel with strong weldability, which has excellent corrosion resistance at the weld and base metal. The alloy has a high molybdenum content which provides good resistance to pitting and crevice corrosion. Furthermore, the Cu content increases the resistance to stress corrosion cracking. The higher Ni content of the alloy provides good resistance to intergranular corrosion.

What are the applications of 0Cr18Ni12Mo2Cu2 stainless steel?

0Cr18Ni12Mo2Cu2 is a chromium-nickel-molybdenum austenitic stainless steel with good general and local corrosion resistance. The addition of molybdenum provides better chloride pitting and general corrosion performance than conventional chromium-nickel austenitic stainless steels such as 304 and 316L. In addition, 0Cr18Ni12Mo2Cu2 has excellent weldability due to its low carbon content. It can be used in various environments such as those exposed to chemicals, acids and salt water. Some typical applications for 0Cr18Ni12Mo2Cu2 include chemical storage tanks, process piping, pressure vessels and heat exchangers.

In summary, 0Cr18Ni12Mo2Cu2 stainless steel is an excellent choice for many applications due to its corrosion resistance and mechanical strength. It is an ideal material for environments with high humidity or chemical exposure due to its excellent resistance to pitting corrosion and excellent weldability compared to other grades of stainless steel. With its long-lasting durability and low maintenance requirements, it is no surprise that 0Cr18Ni12Mo2Cu2 stainless steel is gaining popularity in the industrial sector.