X5 NiCrAlTi 31-20

Product:X5 NiCrAlTi 31-20 is a fully austenitic low-carbon nickel - iron - chromium alloy in the same series of With X5 NiCrAlTi 31-20, the cobalt content of alloy can be strictly controlled under 0.01%. X5 NiCrAlTi 31-20 ability a lot of corrosion medium corrosion. Its high content of nickel in the aqueous corrosion condition has the very good resistance to stress corrosion cracking performance. X5 NiCrAlTi 31-20HT alloy steel usually applied in nitric acid condenser, nitric acid corrosion resistance, steam heating pipe and so one which request 500 degree working environment. X5 NiCrAlTi 31-20HT alloy steel usually be delivered with annealed state.

X5 NiCrAlTi 31-20 equal material: W.Nr.1.4876, X10NiCrAlTi3220, Z8NC32.21, NA15, Incoloy 800H, FeNi32Cr21AlTi

2. X5 NiCrAlTi 31-20 Chemical composition

%	Ni	Cr	Fe	Mo	Co	C	Mn	Si	S	P	Cu	Al	Ti
min	30.0	19.0				0.06						0.15	0.15
max	35.0	23.0	39.5			0.1	1.5	1.0	0.015		0.75	0.60	0.60

3. X5 NiCrAlTi 31-20 Physical properties :
X5 NiCrAlTi 31-20 alloy steel Density: 8.0g/cm3
X5 NiCrAlTi 31-20 alloy steel Melting temperature range :1350-1400 degree
4. X5 NiCrAlTi 31-20 Mechanical properties at room temperature (minimum)

X5 NiCrAlTi 31-20HT alloy steel product	specifications	yield strength RP0.2 N/mm2	yield strength RP1.0 N/mm2	Tensile strength Rm N/mm2	elongation A50%	hardness HB
cold rolling strip hot rolled plate	0.5-6.4	240	265	585	30	<=200
	5-100					135-165
bar Cold working Hot working	1.6-64
	25-100
	>100-240	220	250	550	35
pipe Cold working Hot working	64-240	180	-	530	30	-
	5-100	240	265	585	30
Condensation and heat exchanger	16-76

Application: X5 NiCrAlTi 31-20 alloy steel are widely used in various industrial sectors whose working temperature does not exceed 550 degree.
Typical applications are:
sulfuric acid pickling factories with the heating pipe, containers, baskets, and chain, etc.
water cooling heat exchanger, Marine products pipeline system, acidic gas pipeline environment.
heat exchanger in phosphoric acid production, evaporator, washing, dip tube, etc.
air heat exchanger in petroleum refining
food engineering
chemical process
and high pressure oxygen flame retardant alloy application.

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