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ASTM B505

  • Industrial
  • Fasteners
  • Marine
  • Electrical

Typical Uses

Electrical Connectors, Fasteners Stripped Nuts, Industrial Welding Jaws, Pickling Hooks, High Strength Clamps, Valve Bodies, Pickling Baskets, Bearing Segment for the Steel Industry, Large Hold Down Screws, Pressure Blocks for the, Steel Industry, Gears, Cams, High Temperature Applications, Mining Machine Parts, Marine Covers for Marine Hardware, Marine Equipment

Bar Length : 10ft - 12ft
Square : up to 5''
Hollow : 1 1/2"X3/4" - 11 1/2"X10 1/2"
Round : 1" - 11 3/4"
Rectangle : up to 11'' W
Product availabillity

C95300

Chemical Composition

(%max, unless shown as range or min)

Cu Al Fe
Min/Max 86.0 min 9.0-11.0 0.8-1.5

Applicable Specifications

* ASTM B505
* SAE J461, SAE J462

Fabrication Processes

* Continuous Casting

Fabrication Properties

Joining Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Excellent
Coated Metal Arc Welding Good
Machinability Rating 55

Mechanical Properties (ASTM B505)

Tensile Strength, minA Yield Strength, at 0.5% Extension Under Load, minA Elongation in 2 in.
or 50 mm, min, %
ksi MPa ksi MPa
70 483 26 179 25

A Minimum tensile strength and yield strength shall be reduced 10% for cast bars having a cross section, thickness, diameter, or wall of 4 in. (102 mm) or more. The cross sections are the diameter of a round solid, the distance across the flats of a solid hexagon, the thickness of a rectangle, and the wall thickness of a tube.

Physical Properties

US Customary Metric
Melting Point – Liquidus 1913 F 1045 C
Melting Point – Solidus 1904 F 1040 C
Density 0.272 lb/in3 at 68 F 7.53 gm/cm3 at 20 C
Specific Gravity 7.53 7.53
Electrical Resistivity 80.2 ohms-cmil/ft at 68 F 13.33 microhm-cm at 20 C
Electrical Conductivity 13 %IACS at 68 F 0.075 MegaSiemens/cm at 20 C
Thermal Conductivity 36.3 Btu · ft/(hr · ft2·°F) at 68 F 62.8W/m ·°K at 20 C
Coefficient of Thermal Expansion 9.0·10-6 per °F (68-572 F) 16.2·10-6 per °C (20-300 C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 F 377.1J/kg · °K at 20 C
Modulus of Elasticity in Tension 16000 ksi 110000 MPa
Magnetic Permeability* 1.070 1.07

* TQ 50 Temper, Field Strength 16 kA/m
** As Cast, Field Strength 16 kA/m

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