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Product Detail
Inconel 690
Brand: A-one Alloy
Original: 0.00
Detail

Inconel* 609(UNSN06690)

Introduction

INCONEL 690 is a high-chromium nickel alloy  having excellent resistance to many corrosive aqueous media and  high-temperature atmospheres. The alloy's high chromium content gives it  excellent resistance to aqueous corrosion by oxidizing acids (especially  nitric acid) and salts, and to sulfidation at high-temperatures. In addition  to its corrosion resistance, Inconel 690 has high strength, good  metallurgical stability, and favorable fabrication characteristics

Character

The substantial chromium content gives  the alloy outstanding resistance to oxidizing chemicals and to  high-temperature oxidizing gases.

The high level of nickel imparts resistance to stress-corrosion cracking  in chloride-containing environments as well as to sodium hydroxide solutions.

Application

The properties of INCONEL 690 are  useful for various applications involving nitric or nitric/hydrofluoric acid  solutions.  Examples are tail-gas reheaters  used in nitric acid production and heating coils and tanks for  nitric/hydrofluoric solutions used in pickling of stainless steels and  reprocessing of nuclear fuels.

The alloy’s resistance to sulfur-containing gases makes it an attractive  material for such applications as coal-gasification units, burners and ducts  for processing sulfuric acid, furnaces for petrochemical processing, recuperators,  incinerators, and glass vitrification equipment for radioactive waste  disposal.

In various types of high-temperature water, Inconel 690 displays low  corrosion rates and excellent resistance to stress-corrosion cracking.  Thus, the alloy is widely used for steam  generator tubes, baffles, tubesheets, and hardware in nuclear power generation.

Equal grades

NS315,NS3105,2.4642,NC30Fe,ISO NW6690

Chemical  composition

Nickel . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . 58.0 min.

Chromium. . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . 27.0-31.0

Iron . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . 7.0-11.0

Carbon . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . 0.05 max.

Silicon . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . 0.50 max.

Manganese . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . 0.50 max.

Sulfur . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . 0.015 max.

Copper. . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . 0.50 max

Standards

Wire, rod, bar and forging - ASTM B / ASME SB 166, ASTM B 564  /ASME SB 564, ASME Code Case N-525, ISO 9723, MIL-DTL-24801

Seamless pipe - ASTM B / ASME SB 163, ASTM B 167 /  ASME SB 829, ASTM B 829 /ASME SB 829, ASME Code Cases 2083, N-20, N-525, ISO  6207, MIL-DTL-24803

Plate, sheet, strip -ASTM B / ASME SB 168 /906, ASME  N-525, ISO 6208, MIL-DTL-24802

Forms available  at A-one Alloy

Plate, sheet, strip, wire, bar, rod,  pipe, tube, forging

Delivery

Contact A-one Alloy for confirmation

北京PK10注册官网* INCONEL is a trademark of the SpecialMetals Corporation group of companies.


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