Inconel 738 LC Nickel Alloy Bar Stainless Steel Round OD 150mm

Inconel 738 is a precipitation hardenable nickel-base alloy with superior corrosion resistance and high temperature creep-rupture strength. IN-738 is used in gas turbine blades and other high-temperature industrial applications. American Elements manufactures Inconel 738 in varying compositions and forms such as powder, plate, rod, wire, and sputtering target. We offer standard sizes and shapes in addition to manufacturing unique custom alloys which are tailored to customer requirements. Bulk quantities and term contracts are available for all of our alloy materials. Please contact us with your specifications to receive a quote for materials.

Inconel™ 738 offers a combination of outstanding high-heat creep-rupture strength and corrosion resistance better than many high-strength superalloys with lower chromium content. Inconel 738 is a nickel-based alloy, vacuum-cast and precipitation-hardened, offering exceptional mechanical properties to 1800°F (982°C). IN-738 holds up to the hot corrosive environments found in the turbine industry.

CHEMICAL COMPOSITION OF INCONEL™738

• Carbon 0.15-0.20
• Cobalt 8.00-9.00
• Chromium 15.70-16.30
• Molybdenum 1.50-2.00
• Tungsten 2.40-2.80
• Tantalum 1.50-2.00
• Columbium 0.60-1.10
• Aluminum 3.20-3.70
• Titanium 3.20-3.70
• Aluminum and titanium 6.50-7.20
• Boron 0.005-0.015
• Zirconium 0.05-0.15
• Iron 0.50 max
• Manganese 0.20 max
• Silicon 0.30 max
• Sulfur 0.015 max
• Nickel remainder

HEAT TREATMENT OF INCONEL™738

• 2050°F (1121°C) for 2 hours
• Air cool
• 1550°F (843°C) for 24 hours
• Air cool

APPLICATIONS OF INCONEL™ 738

• Inconel 738 is most commonly used for gas turbine blades and vanes for industrial use.

MACHINABILITY OF INCONEL™ 738

• Sturdy and short drills, reamers, taps and end mills
• Positive feeds with no tool dwelling
• High-speed tools in turning operations
• Carbide tools for tapping, reaming and drilling
• Lubricate continuously
  • Chemical emulsions for turning
  • Chlorinated oil for tapping, reaming, drilling and milling
• 6000 rpm wheel speed for surface grinding, using highly sulfurized oil
• Normal finish grinding techniques

CORROSION RESISTANCE OF INCONEL™ 738

• Exceeds strong superalloys
• Resists oxidation to 2000°F (1093°C)
• Improved sulfidation resistance up to 1800°F (982°C)
• Demonstrated resistance atmospheres with hydrogen sulfide and sulfur dioxide to 1800°F (982°C)

Inconel 738 Alloy Properties (Theoretical)

 

Inconel 738 Alloy Health & ety Information