Hastelloy C-2000 (UNS N06200/2.4675)

Hastelloy C-2000 (UNS N06200/2.4675) 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.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Hastelloy C-2000	NS3405	–	Hastelloy C-2000	N06200	NiCr23Mo16Cu	2.4675	–	–	–	–

Chemical Composition, %

Alloy

Hastelloy C-2000

≤0.01

≤0.08

≤0.50

≤0.025

≤0.010

22.0-24.0

Bal

≤2.0

15.0-17.0

≤0.50

1.3-1.9

17.0-20.0

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HB
8.50	1328-1358	760	363	64	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	ASTM B462, ASTM B472, ASTM B564, ASTM B574, ASME SB462, ASME SB472, ASME SB564, ASME SB574
Plate, Sheet and Strip	ASTM B575, ASME SB575
Pipe and Tube	ASTM B619, ASTM B622, ASTM B626, ASME SB619, ASME SB622, ASME SB626
Welding Product	AWS A5.14 ERNiCrMo-17, ASME Ⅱ SFA-5.14 ERNiCrMo-17, ASME Ⅸ F-No.43
Others	ASTM B366, ASTM B462, ASME SB366, ASME SB462, DIN 17744

Features

Designed to resist an extensive range of corrosive chemicals, including sulfuric, hydrochloric, and hydrofluoric acids
Unlike previous Ni-Cr-Mo alloys, which were optimized for use in either oxidizing or reducing acids, C-2000 alloy extends corrosion resistance in both types of environments
The combination of molybdenum and copper (at levels of 16 and 1.6 wt. %, respectively) provide the outstanding resistance to reducing media, while oxidizing acid resistance is provided by a high chromium content (23 wt. %).