G-30 is a high Nickel based alloy which shows superior corrosion resistance over most other Nickel and Iron based alloys in phosphoric acids as well as many complex environments containing highly oxidising acids such as nitric, hydrofluoric and sulphuric acids.
 

Applications include:

  • Nuclear Fuel Reprocessing
  • Nuclear Waste Processing
  • Pickling Operations
  • Petrochemical Processing
     
Approximate Chemical Composition
Ni 43%
Cr 28-31.5%
Fe 13-17%
Mo 4-6%
Co 5% max
W 1.5-4%
DENSITY 8.22 g/cm3 0.297 lb/in3
MELTING POINT 1399oC 2550oF
COEFFICIENT OF EXPANSION 12.8 µm/m °C
( 20 - 100°C)
7.1 x 10-6 in/in °F
( 70 - 212°F)
MODULUS OF RIGIDITY 77.6 kN/m2 11255 ksi
MODULUS OF ELASTICITY 202 kN/m2 29298 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 650-900 N/mm2 94-131 ksi -200o to +400oC -330o to +750oF
Spring Temper 1000-1500 N/mm2 145-218 ksi -200o to +400oC -330o to +750oF
 
STANDARDS
ASTM B619
 


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