Inconel 690 Alloy 690 Pipe

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

GradeCMnMoCoSiPSNiCrFeAlTiNb + Ta
Inconel 6900.10 max0.50 max8.0 – 10.0max0.50 max0.015 max0.015 max58.0 min20.0 – 23.05.0 max0.40 max0.40 max3.15 – 4.15
Inconel 690NCF 690NA 212.4856N06690NC22DNB4MNiCr22Mo9NbЭИ602ХН75МБТЮ


Alloy 690 Pipe Inconel 690 Pipe Physical properties:

Alloy 690 Density, kg/dm38.19
Melting range, ℃1343~1377
Electrical resistivity, μΩ•m1.148
Thermal conductivity, W/m•℃13.5
Poisson’s ration0.289
Coefficient of expansion (0~100°C), ×10-6/℃14.06
Young Modulus, GPa211


Inconel 690 Pipes and Tubing are extensively applied in extremely corrosive conditions in the below Industries.

  • Oil & Gas Industry
  • Petrochemicals Plants
  • Chemical Plants
  • Industrial Machinery
  • Power Industry
  • Paper & Pulp Industry
  • Food Processing Industry
  • Refineries



Alloy 690 Product forms & sizes (mm):

Alloy 690 Bar: Φ12~Ф450

Alloy 690 Wire: Φ0.5~Ф12

Plate & Strip: δ0.2~δ350

Alloy 690 Tube: Φ4~Ф400

Other Forms & sizes: Negotiable