NAS 74N

We could produce NAS 74N forging parts,NAS 74N forged rings, NAS 74N Rolled Rings,NAS 74N forging flanges, NAS 74N forging round bars, NAS 74N forged disks, NAS 74N forging bushings,NAS 74N forging discs,NAS 74N forged tubes, NAS 74N forging sleeves,NAS 74N forging tube sheets, NAS 74N forging shafts,NAS 74N forging pipes as per the requirement of the client
NAS 74N is a duplex alloy stainless steel
We could delivery NAS 74N forging material as per the standard of DIN
We use EAF+VOD-ESR melting methods to melt the material of NAS 74N 
NAS 74N  has excellent resistance to chloride stress corrosion and high thermal conductivity, with a low coefficient of thermal expansion. The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion
The Chemical Composition of NAS 74N  is as follows:

	Super Duplex 2507
Ni	6 – 8
Cr	24 – 26
Fe	Balance
Mo	3 – 5
C	0.030 max
N	0.24 – 0.32
Mn	1.20 max
Cu	0.50 max
Si	0.80 max
P	0.035 max
S	0.020 max

 
The mechanical property of NAS 74N is as follows:

Tensile Strength	Psi – 116000 , MPa – 800
Yield Strength (0.2%Offset)	Psi – 80000 , MPa – 550
Elongation	15 %

 
NAS 74N should be solution annealed and quenched after either hot or cold forming. Solution annealing should be done at a minimum of 1925ºF Annealing should be followed immediately by a rapid air or water quench. To obtain maximum corrosion resistance, heat treated products should be pickled and rinsed.
NAS 74N is requires an adjustment of tooling data and machining method, in order to achieve satisfactory results. Compared to Sanmac 316/316L, the cutting speed must be reduced by approximately 50-55% when turning NAS 74N with coated, cemented carbide tools. Much the same applies to other operations. Feeds should only be reduced slightly and with care
Due to special mechanical properties of NAS 74N forging parts, there are many wide uses as followings:
NAS 74N seamless rolled rings and  NAS 74N forging shafts that is used in used in the power generation, marine, petrochemical and chemical engineering industries.
NAS 74N forged shafts,NAS 74N forging pipes, NAS 74N forged tubes ,forged tube sheets, forged flanges that are used separator and heat exchanger parts, in the injection and ballast water systems,Chemical process industries, heat exchangers, vessels, and piping
NAS 74N forging shafts,NAS 74N forging flanges ,NAS 74N forged rings,NAS 74N forging pipes that is used in downhole service in Oil and gas industry equipment,Offshore platforms, heat exchangers, process and service water systems, fire fighting systems
NAS 74N forged bushing,NAS 74N  forged sleeves,NAS 74N forged disks,NAS 74N  forged discs that is used in Offshore and onshore industry, such as subsea and deepwater offshore oil production systems, industrial air compressors, power generators and nitrogen generators
NAS 74N open die forging parts,forging pieces,forging nozzles forged crankshaft that is used in Pulp and paper digesters, liquor tanks and paper machines
NAS 74N forged valve stem, forged valve parts, forged valve seat ring,forged valve blocks,forged bodies that are used in ball valves, check valves, strainers ,globe valve, gate valve,Plug valve and so on
NAS 74N forging rings, NAS 74N forging spindles, NAS 74N forging bars,NAS 74N forging gears that are used in power transmission, turbine,gas compressor,gear boxes and so on
NAS 74N forged products,NAS 74N forged nozzles,NAS 74N forging eccentric shaft that are used on Mechanical and structural components, high strength, corrosion-resistant parts,Power industry FGD systems
NAS 74N forged wheels, forged manifold,forging rolls that are used in Desalination plants, high pressure RO-plant and seawater piping
Our NAS 74N forged parts will be Ultrasonic testing as per standard, EN10228-3,Sep1921,ASTM A388 and so on
We could supply NAS 74N  super allloy forging parts certificate as per the standard of EN10204-3.1 or EN10204-3.2 of third party
Please send us the size or drawing of NAS 74N forged material that you need, we are glad to quote the best price for your side