Model Number: WDH028 Brand Name: Bozhong Metal Key Specifications/Special Features: IntroductionSuper alloys or high performance alloys are used in environments with very high temperature above 540C (1000F) where deformation resistance and high surface stability are chiefly requiredThey have good oxidation and creep resistanceCobalt-base, nickel-base and iron-base alloys are the three major types of super alloysIron-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 applicationSuper alloys can be generally forged, rolled to sheet or produced in different shapesHighly alloyed compositions are formed as castingsThey can be strengthened using hardening techniques like work hardening, solid-solution hardening and precipitation hardeningHASTELLOY(r) G30(r) alloy is corrosion resistant and has the ability to oxidize acidsThe 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
Forging
As HASTELLOY(r) G30(r) alloy has good ductile property, it can be forged easily
Cold working
HASTELLOY(r) G30(r) alloy can be cold worked using standard tooling methods
As plain carbon steels produce galling, they are not preferred for forming HASTELLOY(r) G30(r) alloy
Galling can be minimized with the help of heavy duty lubricants

Applications
Following are the major applications of HASTELLOY(r) G30(r) alloy:

• Chemical process equipment
• Reheated tubes
• Pump components
• Agitator blades
• Re-boilers in nuclear waste reprocessing