This Nickel-Molybdenum alloy gives excellent resistance to hydrochloric
acid at all concentrations and temperatures. 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-2 is not recommended in the presence of ferric or cupric salts.

 

Applications include:

  • Chemical Processing
Approximate Chemical Composition
Ni 65%
Mo 28.5%
Cr 1.5% max
Fe 1.5% max
Co 3% max
W 3% max
Mn 3% max
DENSITY 9.22 g/cm3 0.333 lb/in3
MELTING POINT 1418oC 2585oF
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/m2 12038 ksi
MODULUS OF ELASTICITY 216 kN/m2 31329 ksi
 
CONDITION OF SUPPLY HEAT TREATMENT (AFTER FORMING)
Annealed/Spring Temper Stress relieve at 400oC - 450oC (750oF - 840oF) for 2 hours and air cool.
 
CONDITION  

APPROX TENSILE STRENGTH

  

APPROX SERVICE TEMPERATURE
Annealed 1000-1200 N/mm2 145-174 ksi -200o to +400oC -330o to +750oF
Spring Temper 1600-2000 N/mm2 232-290 ksi -200o to +400oC -330o to +750oF
 
STANDARDS
ASTM B335 ASTM B619
 
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