00Cr22Ni5Mo3N, 022Cr19Ni5Mo3Si2N, 00Cr18Ni5Mo3Si2, F51 dual phase steel alloy

00Cr22Ni5Mo3N duplex stainless steel overview:

00Cr22Ni5Mo3N dual-phase steel is a new product successfully researched and developed in 2000. 00Cr22Ni5Mo3N dual-phase steel is a nitrogen-added duplex stainless steel (2205 dual-phase steel for short), 00Cr22Ni5Mo3N dual-phase steel is composed of 21% chromium, 2.5% molybdenum and 4.5 Duplex stainless steel composed of% nickel-nitrogen alloy. At present, the domestic 00Cr22Ni5Mo3N dual-phase steel products include welded pipes, seamless pipes, steel plates, bars, forgings, and strips. The early duplex stainless steels can withstand moderate strength uniform corrosion and chloride stress corrosion cracking, but when used under welding conditions, their performance will be greatly reduced. In order to improve this situation, 00Cr22Ni5Mo3N duplex steel was added to the nitrogen, which not only improved the corrosion resistance, but also used it well. It has high strength, good impact toughness, and good overall and local resistance to stress corrosion.

The yield strength of 00Cr22Ni5Mo3N duplex steel is twice that of austenitic stainless steel. This feature allows designers to reduce weight when designing products, making this alloy more cost-effective than 316,317L. This alloy is particularly suitable for use in the -50 ° F / + 600 ° F temperature range. Applications outside this temperature range can also be considered for this alloy, but have some limitations, especially when applied to welded structures. Due to the special performance characteristics of 00Cr22Ni5Mo3N dual-phase steel, it has a wide range of applications. It is by far the most widely used grade in dual-phase steel.

 

00Cr22Ni5Mo3N duplex stainless steel chemical composition:

C≤	Si≤	Mn≤	P≤	S≤	Cr	Ni	Mo	N
0.03	1.00	2.00	0.030	0.020	21.0 23.0	4.50 6.50	2.50 3.50	0.08 0.20

 

00Cr22Ni5Mo3N duplex stainless steel mechanical properties:

Heat treatment system ℃	σb(Mpa) ≥	σs(Mpa)≥	δ%≥	Brinell	Rockwell
1020~1100	620	450	25	290	30.5

 

00Cr22Ni5Mo3N duplex stainless steel application:

00Cr22Ni5Mo3N has medium strength to high strength and good resistance to ordinary corrosion / stress, corrosion / cracking. Applications include pumps, valves, flanges and piping systems that are widely used in the oil and gas, chemical, power and brewing industries.