UNS R30605 High-Temperature Alloy Specifications
# UNS R30605 High-Temperature Alloy Specifications
## Introduction to UNS R30605
UNS R30605 is a high-temperature alloy known for its exceptional resistance to oxidation and corrosion at elevated temperatures. This alloy is widely used in industries such as aerospace, power generation, and chemical processing where materials must withstand extreme conditions.
## Chemical Composition
The chemical composition of UNS R30605 plays a crucial role in its performance characteristics:
Element | Percentage
Nickel (Ni) | 58.0 min
Chromium (Cr) | 20.0-23.0
Iron (Fe) | 5.0 max
Molybdenum (Mo) | 8.0-10.0
Cobalt (Co) | 0.5-2.5
Tungsten (W) | 0.2-1.0
Aluminum (Al) | 0.2-0.5
Titanium (Ti) | 0.2-0.6
Carbon (C) | 0.05-0.15
Boron (B) | 0.003-0.010
Zirconium (Zr) | 0.01-0.10
## Mechanical Properties
UNS R30605 exhibits excellent mechanical properties at both room and elevated temperatures:
– Tensile Strength: 120-150 ksi (827-1034 MPa)
– Yield Strength: 80-110 ksi (552-758 MPa)
– Elongation: 20-30%
– Hardness: 200-250 HB
## Temperature Resistance
This alloy maintains its structural integrity across a wide temperature range:
– Continuous Service: Up to 1200°C (2192°F)
– Short-term Exposure: Up to 1300°C (2372°F)
– Excellent thermal fatigue resistance
– Good creep resistance at high temperatures
## Applications
UNS R30605 is commonly used in:
Keyword: uns r30605
– Gas turbine components
– Combustion chambers
– Heat exchangers
– Nuclear reactor components
– Chemical processing equipment
– Aerospace engine parts
## Fabrication and Welding
The alloy can be fabricated using standard techniques:
– Hot working: 1050-1200°C (1922-2192°F)
– Cold working: Possible with intermediate annealing
– Welding: Recommended methods include GTAW and GMAW
– Post-weld heat treatment often required
## Standards and Specifications
UNS R30605 meets various industry standards:
– ASTM: B435, B572
– AMS: 5872, 5873
– UNS: R30605
– DIN: 2.4633
– EN: NiCr20Co18Ti
## Conclusion
UNS R30605 is a premium high-temperature alloy offering exceptional performance in extreme environments. Its combination of oxidation resistance, mechanical strength, and fabricability makes it a preferred choice for critical applications where reliability at elevated temperatures is paramount.