Copper Nickel

C61400 Aluminum Bronze

Strength and Performance in Extreme Environments

C61400 Aluminum Bronze is a copper alloy that incorporates zinc, iron, and aluminum, providing outstanding performance in marine environments. This alloy exhibits corrosion resistance and high-velocity seawater erosion resistance comparable to C71500 70/30 Copper Nickel, while offering superior strength and fatigue resistance. Primarily available in wrought plate form, C61400 is commonly used in seawater service applications, including steam condensers, oil coolers, and various heat exchangers. Tubesheets made from C61400 Aluminum Bronze are frequently paired with copper-nickel tubes in seawater-cooled condensers and heat exchangers, optimizing efficiency and durability. The unique combination of strength, corrosion resistance, and thermal conductivity makes C61400 an excellent choice for demanding industrial applications, ensuring reliable performance under challenging conditions. This versatility establishes Aluminum Bronze 61400 as a preferred material for engineers and manufacturers seeking robust solutions for their heat exchange systems.

Available Shapes for

C61400 Aluminum Bronze

Plate
Plate
Forging
Forging

Applications for

C61400 Aluminum Bronze

Marine Hardware
Mixing Troughs
Nuts
Tanks
Tubesheets
Wear Plates

Description

C61400 Aluminum Bronze is a copper alloy that incorporates zinc, iron, and aluminum, providing outstanding performance in marine environments. This alloy exhibits corrosion resistance and high-velocity seawater erosion resistance comparable to C71500 70/30 Copper Nickel, while offering superior strength and fatigue resistance. Primarily available in wrought plate form, C61400 is commonly used in seawater service applications, including steam condensers, oil coolers, and various heat exchangers. Tubesheets made from C61400 Aluminum Bronze are frequently paired with copper-nickel tubes in seawater-cooled condensers and heat exchangers, optimizing efficiency and durability. The unique combination of strength, corrosion resistance, and thermal conductivity makes C61400 an excellent choice for demanding industrial applications, ensuring reliable performance under challenging conditions. This versatility establishes Aluminum Bronze 61400 as a preferred material for engineers and manufacturers seeking robust solutions for their heat exchange systems.

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  • Specifications
  • Mechanical Properties
  • Composition
  • Physical Properties
  • Applications
ASTM ASTM ASME ASME Military
Plate ASTM 169 ASTM B171 ASME SB-169 ASME SB-171 QQ-C-450
PLATE
Commercial
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
M20 / O25 up to 1/2″ 72 32 35
over 1/2″ to 2″ 70 30 35
over 2″ to 5″ 65 28 35
      QQ-C-450
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
Soft up to 1/2″ 72 32 35
Soft over 1/2″ to 2″ 70 30 35
Soft over 2″ to 5″ 65 28 35
Hard up to 1/2″ 80 45 25
Hard over 1/2″ to 1″ 70 40 30
COMMERCIAL
UNS No. Copper + Silver Manganese Lead Iron Zinc Aluminum Phosphorus
C61400 Remainder 1.0 max 0.01 max 1.5-3.5 0.20 max 6.0-8.0 0.015 max
QQ-C-450
UNS No. Copper + Named Elements Manganese Lead Iron Zinc Aluminum Phosphorus
C61400 99.5 1.0 max 0.01 max 1.5-3.5 0.20 max 6.0-8.0 0.015 max
Density @ 68o F 0.285 lb/in3
Melting Range 2084-2192o F
Hot Formability Good
Cold Formability Fair
Machinability rating (C360 = 100) 30
Brazing Fair
Soldering Not Recommended
Gas-shielded arc welding Fair
Oxy-acetylene welding Not recommended
Carbon-arc welding Fair
Coated metal-arc welding Fair
Resistant welding: spot and seam Good
Resistance Welding: butt Good
* Chutes
* Tubesheets
* Condenser Head Plates
* Vessel Bodies
* Tanks
* Marine Hardware
* Blending Chambers
* Mixing Troughs
* Wear Plates
* Nuts
* Machine Parts