AL-6XN Super Austenitic Stainless Steel N08367, A 240, E NiCrMo-3

AL-6XN (N08367, 1.4501) Super Austenitic Stainless Steel Overview:

AL-6XN (N08367, 1.4501) is a typical 6 molybdenum (high molybdenum content of 6.3%) super austenitic stainless steel. The ability to resist chloride pitting, crevice corrosion and stress corrosion is better than 3 series stainless steel, and the cost is lower than that of corrosion-resistant nickel-based alloys. AL-6XN (N08367, 1.4501) super austenitic stainless steel shows good corrosion resistance in various severe corrosive environments and is suitable for high chloride aqueous solutions and chloride corrosive environments. Used in a variety of high chloride environments: bleach (sodium hypochlorite, chlorine dioxide), halogen and salt or seawater-rich chemicals.

AL-6XN (N08367, 1.4501) super austenitic stainless steel is also a super austenitic stainless steel with excellent resistance to chloride ion pitting and crevice corrosion. As a corrosion-resistant alloy with good cost performance, its comprehensive resistance Corrosion ability has a great leap forward compared to 316L. At the same time, its corrosion resistance is close to other corrosion-resistant nickel-based alloys such as C-276, and the cost advantage is obvious. Because the significant nitrogen component is added to the alloy, the Al-6XN material has higher tensile strength than conventional austenitic stainless steel (such as 304, 316, 317, etc.), while maintaining excellent material toughness and impact strength, ASME standard The allowable stress value specified in the specification is that Al-6XN is 40% higher than 316L and nearly double that of copper-nickel alloy.

 

Chemical composition of AL-6XN (N08367, 1.4501) super austenitic stainless steel:

C≤	Si≤	Mn≤	P≤	S≤	Cr	Ni	Mo	N	Cu≤
0.03	1.00	2.0	0.040	0.030	20.0 22.0	23.5 25.5	6.00 7.00	0.45 0.55	0.75

 

AL-6XN (N08367, 1.4501) Super austenitic stainless steel physical and mechanical properties (21 ℃ at room temperature):

Density: 8.24g / cm3.

Tensile strength: σb≥744Mpa.

Yield strength: σb≥365Mpa.

Elongation: δ≥47%.

 

AL-6XN (N08367, 1.4501) Super austenitic stainless steel material characteristics:

AL-6XN (N08367, 1.4501) stainless steel has higher pitting, crevice corrosion and pressure crevice corrosion resistance to chloride ions than standard 300 series alloys. In stainless steel, Cr, Mo, Ni, and C are different for different media. Resistant to corrosion. Cr is representative of corrosion resistance in natural and oxidizing environments. Increasing the content of Cr, Mo, and Ni increases the resistance to pitting corrosion, nickel provides austenite structure, and nickel and molybdenum increase the pressure crevice corrosion resistance and decrease the resistance to chloride ions. Environmental corrosion resistance. High nickel (24%) and molybdenum (6.3%) AL-6XN stainless steel has better resistance to crevice corrosion. Molybdenum has resistance to chloride ion pitting, nickel further enhances pitting resistance, and can provide higher strength than 300 austenitic stainless steel, so it is often used in thinner parts of equipment. In AL-6XN stainless steel, higher levels of chromium, molybdenum, and nickel also provide corrosion resistance when stainless steel is formed and welded. In addition AL-6XN stainless steel also has the following

1. Excellent resistance to pitting and crevice corrosion in the environment containing chloride ion.

2. Excellent resistance to stress corrosion in sodium chloride salt solution.

3. High strength and good toughness.

 

AL-6XN （N08367,1.4501） Super austenitic stainless steel main application:

AL-6XN high chromium, molybdenum, nickel and nitrogen make AL-6XN have better resistance to chloride pitting and crevice corrosion, which makes AL-6XN applied to many environments: flue gas desulfurization spray tower; reverse osmosis method Seawater desalination equipment and pumps; chemical reactors and pipelines; heat exchangers using seawater medium; crude oil split distillation towers and metal packings; offshore oil and gas extraction equipment; scrubber drums, pressure rollers, tanks, pipes, etc. in pulp bleaching systems .