Hastelloy B (UNS N10001 / W.Nr. 2.4800)

Hastelloy B (UNS N10001 / W.Nr. 2.4800) is a nickel-molybdenum based alloy that is highly resistant to corrosion in reducing environments such as hydrochloric acid and performs well under high temperature conditions.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Hastelloy B	NS3201	–	Hastelloy B	N10001	S-NiMo30	2.4800	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Mo	V	Fe
Hastelloy B	≤0.05	≤1.0	≤1.0	≤0.04	≤0.03	≤1.0	Bal	26.0-30.0	0.2-0.4	4.0-6.0

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HB
9.22	1370-1418	885	400	58	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	ASTM B335, ASME SB335, ASTM B366, ASME SB366, ASTM B564, ASME SB564, ASTM B472, ASME SB472
Plate, Sheet and Strip	ASTM B333, ASME SB333
Pipe and Tube	ASTM B622, ASME SB622, ASTM B619, ASME SB619
Welding Product	AWS A5.11 (ENiMo-10), AWS A5.14 (ERNiMo-10)
Others	ASTM B366, ASME SB366, ASTM B564, ASME SB564

Features

Control the iron and chromium elements at the lowest level to prevent the formation of β phase Ni4Mo
Excellent corrosion resistance to the reduction environment
Excellent medium concentration of sulfuric acid and many non oxidizing acid corrosiveness
Good resistance to chloride ion reduction of stress corrosion cracking (SCC)
Excellent ability to endure a variety of organic acid corrosion

Applications

Hastelloy B has a wide range of applications in the fields of chemical, petrochemical, energy manufacturing and pollution control, especially in sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid and other industries.