UNS Number N06200

A copper-bearing Ni-Cr-Mo material with exceptional resistance to sulfuric acid Hastelloy C-2000 alloy is unique among the versatile nickel-chromium-molybdenum materials in having a deliberate copper addition. This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.
Like other nickel alloys, it is ductile, easy to form and weld, and possesses exceptional resistance to stress corrosion cracking in chloride-bearing solutions (a form of degradation to which the austenitic stainless steels are prone). It is able to withstand a wide range of oxidizing and non-oxidizing chemicals, and exhibits outstanding resistance to pitting and crevice attack in the presence of chlorides and other halides.

Available Forms of Hastelloy C-2000 at Rooplaxmi Steels:

•  Bar
•   Sheet
•   Plate
•   Pipe & Tube (welded and seamless)
•   Pipe Fittings
•   Wire

Characteristics of Hastelloy C-2000:

•  Developed to resist corrosion in a wider range of media
•   Resistant to an extensive range of corrosive chemicals including sulphuric, hydrochloric & hydrofluoric acids
•   Superior pitting resistance and crevice corrosion resistance to Hastelloy C-276
•   Excellent corrosion resistance to reducing media
•   Good oxidising resistance

Hastelloy C-2000 Chemical Composition, %:

Ni	Mo	Cr	Fe	Co	Mn	C	Cu
59 Balance	16	23	3 max	2 max	0.5 max	0.01 max	1.6

Al	Si
0.5 max	0.08 max

 

Application of Hastelloy C-2000:

•  Chemical process industry reactors
•   Heat exchangers
•   Columns and Piping
•   Pharmaceutical industry reactors and dryers
•   Flue gas desulfurization system components.

Machining and Fabrication with Hastelloy C-2000:

Hastelloy C2000 can be easily welded by shielded metal arc welding, gas tungsten arc welding and gas metal arc welding methods. The unsuitable welding techniques are Oxy-acetylene and submerged-arc welding.
Post weld stress reduction up to 1202oF or 650oC is unsuitable for Hastelloy alloys. However this kind of heat processing is not important, but if followed, a complete solution annealing at 1149oC or 2100oF then water cooling should be done.

Hastelloy C-2000 ASTM Specification:

Pipe Smls	Pipe Welded	Tube Smls	Tube Welded	Sheet / Plate	Bar	Forging	Fitting
B622	B619	B622	B626	B575	B574	B564	B366

 

Mechanical Properties of Hastelloy C-2000:

Tensile strength(@ 1” Thick)	752 MPA or 109000 psi
Yield strength (@68°F, 0.5” thick)	(0.2% offset) 345 MPA or 50000 psi
Elongation at break (0.25” thick)	62 %