Hastelloy C (UNS N10002 / W.Nr. 2.4819)

Hastelloy C (UNS N10002 / W.Nr. 2.4819) is a corrosion resistant alloy with many excellent properties which are very resistant to oxidizing and medium reducing corrosion. It has excellent resistance to stress corrosion cracking and good local clothing ability, and has satisfactory corrosion resistance in many chemical process media, including strong corrosion of inorganic acid solution, chlorine and chlorides, dry chlorine, formic acid and acetic acid, sea water and salt water.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Hastelloy C	NS3303	–	Hastelloy C	N10002	NiMo16Cr15W	2.4819	–	NA 45	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	W	Fe
Hastelloy C	≤0.08	≤0.10	≤1.00	≤0.04	≤0.03	15.0-17.0	Bal	3.0-4.5	4.0-7.0

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HB
8.89	1325-1370	760	365	62	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	ASTM B462, ASME SB462, ASTM B564, ASME SB564, DIN 17752/17753/17754, ISO 9723/9724/9725 DIN 17752, ISO 9723
Plate, Sheet and Strip	ASTM B575, ASME SB575, ASTM B906, ASME SB906, DIN 17750, ISO 6208
Pipe and Tube	ASTM B622, ASME SB622, ASTM B619, ASME SB619, ASTM B626, ASME SB626, ASTM B751, ASME SB751, ASTM B775, ASME SB775, DIN 17751, ISO 6207
Welding Product	AWS A5.14/ERNiCrMo-4, AWS A5.11/ENiCrMo-4
Others	ASTM B366, ASME SB366, ASTM B564, ASME SB564

Features

Control of iron and chromium in the lowest content, prevent the formation of beta phase Ni4Mo.
Excellent corrosion resistance to the reduction environment.
Excellent resistance to moderate sulphuric acid and many non oxidizing acids.
Good resistance to chloride stress reduction stress corrosion cracking (SCC).
Excellent ability to endure a variety of organic acid corrosion.

Applications

Hastelloy C is widely used in the field of chemical, petrochemical, energy manufacturing and pollution control, especially in sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid and other industries.