NAS 75N duplex stainless steel

NAS 75N equal material: S32760, 1.4501, X2CrNiMoWN25-7-4 , SUS329J2L

NAS 75N is a kind of high alloying super duplex stainless steel, mainly used in all kinds of strong corrosive environment. Its strength and corrosion resistance is stronger, is mainly used in chemical processing,petrochemical and underwater equipment. It has strong ability to resist chloride compound corrosion,high thermal conductivity and low thermal expansion coefficient. High chromium, molybdenum and nitrogen content in it has the very high corrosion resistance to pitting corrosion, crevice corrosion and general ability.

NAS 75NChemical composition

	C	Si	Mn	P	S	Ni	Cr	Mo	N	Cu	W	PRE*
Min	―	―	―	―	―	6.0	24.0	3.0	0.20	0.50	0.50	40
Max	0.030	1.00	1.00	0.030	0.010	8.0	26.0	4.0	0.30	1.00	1.00	―

NAS 75Nstainless steel physical properties

Specific heat (J/kg･K)		460
resistivity (μΩ･cm)		90.0
Thermal conductivity (W/m･K)		12.8
The average thermal expansion coefficient (10-6/ degree )	20–100 degree	13.5
	20–200 degree	13.8
	20–300 degree	13.8
	20–400 degree	14.0
The longitudinal elastic modulus (Map)		19.0 x 104
Strong magnetic		Yes
Melting point ( degree )		1400-1450

NAS 75Nstainless steel Mechanical properties

0.2% yield strength (N/mm2)	Tensile strength (N/mm2)	Elongation (%)	hardness (HB)
550 MPa	750 MPa	25	270

NAS 75NProduct form:
Super Duplex Plate/Sheet
Super Duplex Seamless & Welded Tube
Super Duplex Seamless & Welded Pipe
Super Duplex Round Bar
Super Duplex Flanges F53/F55
Super Duplex Specialty Forgings
Super Duplex Seamless & Welded BW Fittings

NAS 75Nduplex stainless steel application:
Oil and gas industry equipment for offshore platforms, heat exchanger, underwater equipment, fire equipment chemical processing industry, vessels and pipes, high pressure RO desalination plants plants and submarine pipeline mechanical parts (high strength, corrosion resistant parts).

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