K401 Chemical Composition Elements (WT%):
Carbon c: 010
Cr: 140～17.0
Molybdenum mo: 030
Nickel ni: margin.
Cobalt co: —
Tungsten w: 700～1.00
Al-al: 450～5.50
Niobium nb: —
Titanium ti: 150～2.00
Fe: 20
Silicon si : 080
Manganese mn : 080
Phosphorus p : 0015
Sulfur s : 0010
Other( )b 003～0.10
Physical Function: Density : 924g/cm3
Melting point : 1330-1380
The minimum value of the mechanical function of the alloy at room temperature:
Tensile strength rm n mm2 : 690
Yield strength rp02n/mm2 ： 310
Elongation a5 % 40
K401 cast alloy has the following characteristics:
1.The content of iron and chromium is controlled at a low level to prevent the formation of phase Ni4Mo.
2.It has excellent corrosion resistance to reducing environments.
3.Good corrosion resistance to medium concentrations of sulfuric acid and many non-oxidizing acids.
4.Good resistance to chloride-reducing stress corrosion cracking (SCC).
5.It has good corrosion resistance to various organic acids.
K401 superalloy has high strength and hardness, and its plasticity and toughness are also maintained. This alloy has good heat resistance and corrosion resistance, which is mainly reflected in the following aspects:
First of all, K401 alloy can operate stably for a long time in a high-temperature environment. In a high-temperature environment, many alloys will have problems such as thermal oxidation and corrosion, but K401 alloy can maintain good heat resistance and maintain its mechanical properties.
Secondly, K401 alloy has very good corrosion resistance. This alloy is resistant to a wide range of chemical corrosion and oxidation in extreme environments, without corrosion, cracking and fracture of the material.
Finally, K401 alloy can be used in a variety of harsh environments. Whether under rolling friction, high pressure or high temperatures, this alloy guarantees the stability of its mechanical and chemical properties, ensuring that the equipment will not have problems in use.
In short, K401 superalloy, as a high-quality material, has very high heat resistance and corrosion resistance, and can perform well in many high-temperature environments. In the future, with the continuous development of science and technology, this superalloy will be more widely used.