Product Description
Key Specifications/Special Features:
Introduction
Super alloys or high performance alloys are used in environments with very high temperature above 540ºC (1000ºF) where deformation resistance and high surface stability are chiefly required
They have good oxidation and creep resistance
Cobalt-base, nickel-base and iron-base alloys are the three major types of super alloys
Iron-base super alloys are generally wrought alloys provided with stainless steel technology Nickel-base and cobalt-base super alloys may be cast or wrought based on its composition or application
Super alloys can be generally forged, rolled to sheet or produced in different shapes
Highly alloyed compositions are formed as castings
They can be strengthened using hardening techniques like work hardening, solid-solution hardening and precipitation hardening
HASTELLOY(r) G30(r) alloy is corrosion resistant and has the ability to oxidize acids
The following sections will provide a detailed description of HASTELLOY(r) G30(r) alloy
Other designations
Equivalent materials to HASTELLOY(r) G30(r) alloy are the following:
ASTM B366
ASTM B581
ASTM B582
ASTM B619
ASTM B622
DIN 2.4603
Fabrication and heat treatment
Machinability
HASTELLOY(r) G30(r) alloy can be machined using conventional techniques employed for iron based alloys
Quality of the alloy can be improved with the utilization of water-base coolants
Heavy duty machining tools and equipment can be used prior to cutting in order to reduce chattering or work-hardening of the alloy
Forming
HASTELLOY(r) G30(r) alloy can be formed through conventional forming methods
Welding
Welding of HASTELLOY(r) G30(r) alloy is performed through commonly used welding techniques like gas tungsten arc welding, shielded metal-arc welding, metal-arc welding and submerged-arc welding
However, an alloy filler metal that suits this alloy should be used
Heat treatment
HASTELLOY(r) G30(r) alloy is capable of being annealed
However, this alloy must be solution-annealed after hot forming in order to restore its resistance to corrosion
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