Introduction and Application Scenarios of SA194-7 Nut

2023-04-26 14:45:25

Nuts are commonly referred to as nuts in daily life and are usually used together with bolts. A194-7 is an ASME (or ASTM) standard nut material, which is the specification for carbon steel and alloy steel bolts in high-temperature and high-pressure equipment. A194-7 high-temperature and high-pressure nuts are suitable for high-temperature and high-pressure equipment, such as high-pressure valves, marine, shipbuilding, chemical, fluid engineering, pressure vessels, petrochemical equipment, etc.

A194-7 is a common stainless steel material whose chemical composition determines its performance and use. It belongs to austenitic stainless steel and has excellent corrosion resistance, processability, and wear resistance. It is commonly used in the manufacturing of high-strength bolts, nuts, bearings, or certain automotive components. Its chemical composition includes chromium (Cr), nickel (Ni), sulfur (S), and molybdenum (Mo).

 Chromium is the most important element among them, which can improve the corrosion resistance and thermal stability of stainless steel, Nickel can improve the plasticity, corrosion resistance, and strength of steel, while molybdenum can improve the hardness and strength of steel. Carbon and sulfur are impurities in stainless steel, which can reduce its corrosion resistance and mechanical properties. In summary, the chemical composition of A194-7 determines its performance and use. 

It has excellent corrosion resistance, mechanical properties, and wear resistance, and has been widely used in engineering and manufacturing fields.