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Hastelloy˘ B-3
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Hastelloy˘ B-3

Available in any of the 'profile options'

This Nickel-Molybdenum alloy gives excellent resistance to hydrochloric acid at all concentrations and temperatures from ambient to high. It also withstands sulphuric, acetic, formic and phosphoric acids and other non oxidizing media. B-3 also has excellent resistance to pitting corrosion and to stress-corrosion cracking. Hastelloy B-3 is not recommended in the presence of ferric or cupric salts.

Chemical Composition Specifications Designations Key Features Typical Applications
Element Min % Max %
Ni 65.00
Cr 1.00 3.00
Mo 27.00 32.00
Fe 1.00 3.00
W 3.00
C 0.01
Si 0.10
Co 3.00
Mn 3.00
V 0.20
P 0.03
S 0.01
Ti 0.20
Cu 0.20
Al 0.50
Zr 0.10
Nb/Cb 0.20
Ta 0.20
Ni+Mo 94.00 98.00
ASTM B335
ASTM B619
W.Nr 2.4600
UNS N10675
AWS 051
Excellent corrosion resistance to hydrochloric acid at all concentrations and temperatures
Withstands sulphuric, acetic, formic & phosphoric acids & other non-oxidising media
Excellent resistance to pitting corrosion & stress corrosion cracking
Chemical processing
Density 9.22 g/cm³ 0.333 lb/in³
Melting Point 1418°C 2585°F
Coefficient of Expansion 10.6 μm/m °C (20 – 100°C) 5.7 x 10-6 in/in °F (70 – 212°F)
Modulus of Rigidity 83 kN/mm² 12038 ksi
Modulus of Elasticity 216 kN/mm² 31329 ksi
Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Annealed or Spring Temper Stress Relieve 400 – 450 750 – 840 2 Air
Properties
Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 1000 – 1200 145 – 174 -200 to +400 -330 to +750
Spring Temper 1600 – 2000 232 – 290 -200 to +400 -330 to +750

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Haynes International

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