What is G30 material?
(Nickel Alloy G-30) Strip, Coil, Foil, Wire, ASTM B582
Application areas
Gas scrubbers, acid production and pickling
describe
Hastelloy G-30 is an improved version of the nickel-chromium-iron-molybdenum-copper alloy G-3. With its higher chromium content, added cobalt and tungsten, G-30 exhibits superior corrosion resistance than most other nickel- and iron-based alloys in commercial phosphoric acid and in complex environments containing highly oxidizing acids. The alloy's resistance to the formation of grain boundary deposits in the heat affected zone makes it suitable for use in most chemical process applications under welding conditions.
chemical typical
Nickel: Balanced
Chrome: 28.00 - 31.50
Iron: 13.00-17.00
Molybdenum: 4.00 - 6.00
Copper: 1.00 - 2.40
Tungsten: 1.5-4.0
Cobalt: Max 5.00
Manganese: Max 1.50
Columbium + tantalum: 0.30-1.50
Carbon: 0.03 max
Phosphorus: 0.04 maximum
Silicon: Max 0.80
Sulfur: 0.02 maximum
physical properties
Density: 0.297 lbs/in3, 8.22 g/cm3
Average coefficient of thermal expansion: in/in/°F (mm/m/°C):
70-212°F (20-100°C): 7.1 x 10-6 (12.8)
Thermal Conductivity: BTU-in/h-ft-°F (W/m-°K): 70 °F (21 °C): 71 (10.2)
Modulus of elasticity: ksi (MPa) 29.3 x 103 (202 x 103) tensile
Melting point (approximately): 2550 °F (1399 °C)
