Alloy 600, UNSN06600

Alloy 600

 

Alloy 600 (UNS N06600)

Summary

A nickel-chromium alloy with good oxidation resistance at high temperatures and resistance to chloride-ion stress-corrosion cracking, corrosion by high-purity water, and caustic corrosion. Used for furnace components, in chemical and food processing, in nuclear engineering, and for sparking electrodes.

Standard Product Forms

Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire.

Chemical Composition Wt,%

 

Min

Max.

 

Min.

Max.

 

Min.

Max.

Ni

72.0

 

Cu

 

0.5

C

 

0.15

Cr

14.0

17.0

Co

 

 

Si

 

0.5

Fe

6.0

10.0

Al

 

 

P

 

 

Mo

 

 

Ti

 

 

S

 

 

W

 

 

Mn

 

1.0

N

 

 

Physical

Constants

Density,g/ 8.47

Melting Range,℃ 1354-1413

Typical Mechanical Properties

(Annealed)

Tensile Strength, ksi 95

Mpa 655

Yield Strength (0.2% Offset),ksi 45

Mpa 310

Elongation, % 40

 


Microstructure

Alloy 600 has a face-centered cubic structure and is a stable, austenitic solid-solution alloy.


Characters

A good corrosion resistance to the media of reducing, oxidation and nitridation;

Virtual immunity to chloride-ion stress-corrosion cracking even at elevated temperatures;

Very good resistance ti high-temperature corrosion in drychlorine and hydrogen chloride.


Corrosion Resistance

The composition of Alloy 600 enables it to resist a variety of corrosives. The chromium content of the alloy makes it superior to commercially pure nickel under oxidizing condition, and its high nickel content enables it to retain considerable resistance under reducing condition. The nickel content also provides excellent resistance to alkaline solutions.

The alloy has fair resistance to strongly oxidizing acid solution. However, the oxidizing effect of dissolved air alone is not sufficient to insure complete passivity and freedom from attack by air-saturated mineral acids and certain concentrated organic acids.


Applications

1. Pressurised-water-reactor steam-generator tube;

2. Heat exchangers for sodium hydroxide;

3. Component used in the manufacture of photographic materials and film processing;

4. Oxychlorinator internals in vinyl chloride production;

5. Strip for flight recorders.


We have products:

seamless pipe,seamless tube,

 

 

 

 

 

welded pipe,welded tube,

pipe fitting,flange,bar,plate


Complete inspection equipment and quality system.
Eddy current test, Ultrasonic detector, hydraulic test equipment, Universal testing machine, Arldirect-reading spectrometer...... Recently we have replaced a new set of advanced PMI equipment, OXFORD INSTRUMENTS X-MET7000
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Advanced equipment and technological process.
We have 5 bright annealed furnace with 30 mtrs in length, the highest temperature can reach 1350℃, and the tolerance between the set and real temperature could be within 2℃, and it ensures the mechanical properities and the quality of the pipe surface.
Straightening Machine, this equipment can ensure the straightness of our big OD pipes
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