Two: chemical composition:
c:≤0.08 Mn:≤ 1.00 Si:≤0.75 Ni:2.0-5.0 Cr:23.00-28.00。
Sulfur S: ≥ 0.03 phosphorus P: ≤ 0.040 molybdenum Mo: 1.00-2.00
Three. Scope of application Application field:
It is a high-hardness and high-strength austenitic stainless steel imported from Japan, which has good plasticity, toughness, weldability and corrosion resistance, and has good corrosion resistance in oxidation and reduction media. Used for manufacturing acid-resistant equipment, such as corrosion-resistant containers and equipment linings, transportation pipelines and parts of nitric acid-resistant equipment.
Four: Physical attributes
Tensile strength σ b (MPa): ≥ 590 Conditional yield strength σ 0.2 (MPa): ≥ 390 Elongation δ 5 (%): ≥ 18.
Area shrinkage ψ (%): ≥ 40
V. Overview
In practical application, steel resistant to weak corrosive medium is usually called stainless steel, while steel resistant to chemical medium is called acid-resistant steel. Because of the different chemical composition, the former is not necessarily resistant to the corrosion of chemical media, while the latter is generally stainless. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel.