Inconel 690 Alloy 690 Pipe

Alloy 690 Pipe Inconel 690 Pipe (UNS N06690) is a high-chromium, nickel-based alloy with excellent resistance to corrosion by a variety of aqueous media and high-temperature atmospheres. It also has high strength, good metallurgical stability and excellent processing characteristics.

Alloy 690 Pipe Inconel 690 Pipe Application
The alloy’s ability to resist sulfur-containing atmospheres makes it used as a coal gasification device, a burner and furnace tube for sulfuric acid treatment, a petrochemical furnace, a heat exchanger tube, an incinerator, and a glass curing equipment for disposal of radioactive waste. The alloy shows excellent low corrosion rate and stress corrosion resistance in various types of high-temperature water, so it is widely used in steam generator heat transfer tubes, separators, tube sheets and nuclear power components.

Inconel 690 Pipe Specification :

Specifications : ASTM B444, B705 / ASME SB444, SB705

Standard : ASTM, ASME and API

Pipe Size : 15 NB UP TO 600 NB IN SCH 5S, 10S,10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS

Tube Size : 1 mm OD upto 400 mm OD in 0.2 TO 20 mm thickness.

Type : Seamless, ERW, Welded, Fabricated, LSAW.

Length : Single Random, Double Random & Required Length, Cut Length or As per customer's requirement

End : Plain End, Beveled End, Treaded

Inconel Grade 690 Chemical Composition & Equivalent Standards

Grade	C	Mn	Mo	Co	Si	P	S	Ni	Cr	Fe	Al	Ti	Nb + Ta
Inconel 690	0.10 max	0.50 max	8.0 – 10.0	max	0.50 max	0.015 max	0.015 max	58.0 min	20.0 – 23.0	5.0 max	0.40 max	0.40 max	3.15 – 4.15

STANDARD	JIS	BS	WERKSTOFF NR.	UNS	AFNOR	EN	OR	GOST
Inconel 690	NCF 690	NA 21	2.4856	N06690	NC22DNB4M	NiCr22Mo9Nb	ЭИ602	ХН75МБТЮ

Alloy 690 Pipe Inconel 690 Pipe Physical properties：

Alloy 690 Density, kg/dm³	8.19
Permeability	1.001
Melting range, ℃	1343~1377
Electrical resistivity, μΩ•m	1.148
Thermal conductivity, W/m•℃	13.5
Poisson’s ration	0.289
Coefficient of expansion _(0~100°C), ×10^-6/℃	14.06
Young Modulus, GPa	211