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ASTM B505, SAE 430 B

  • Industrial
  • Marine
  • Electrical

Typical Uses

Wear Rings for Forming Dies for Wood Pulp Industry, Large Valve Stems, Hydraulic Cylinder Parts, Propellers, Bridge Pins, Forming Dies for Wood Pulp Industry, Cams, Gib, Gears, Hydraulic Cylinder Parts, Slow Speed, Heavy Load Bearings, Bushings, High Strength Machine Parts, Hooks, Frames, Struts, Brackets,  Electrical Components, Switches, Screw Down Nuts, Screw Down Nuts,  Marine Hardware, Rudders, Covers for Marine Hardware, Clamps, Boat Parts

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"
Hexagonal : up to 3''
Rectangle : up to 11'' W
Product availabillity

C-86300

Chemical Composition

(%max, unless shown as range or min)

Cu Al Fe Mn Ni Pb Sn Zn
Min/Max 60-66 5.0-7.5 2.0-4.0 2.5-5.0 1.0 0.2 0.2 22.0-28.0

Note: Cu + Sum of Named Elements, 99.5% min.

Applicable Specifications

* ASTM B505

Fabrication Processes

* Continuous Casting

Fabrication Properties

Joining Technique Suitability
Soldering Poor
Brazing Poor
Oxyacetylene Welding Poor
Gas Shielded Arc Welding Poor
Coated Metal Arc Welding Good
Machinability Rating 80

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
110 758 62 427 14

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 1693 F 923 C
Melting Point – Solidus 1625 F 885C
Density 0.283 lb/in3 at 68 F 7.46 gm/cm3 at 20 C
Specific Gravity 7.83 7.83
Electrical Resistivity 130.8 ohms-cmil/ft at 68 F 21.74 microhm-cm at 20 C
Electrical Conductivity 8 %IACS at 68 F 0.0746 MegaSiemens/cm at 20 C
Thermal Conductivity 20.5 Btu . ft/(hr .ft2. oF)at 68F 35.5 W/m ·°K at 20 C
Coefficient of Thermal Expansion 12.0·10-6 per °F (68-572 F) 21.6·10-6 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 15500 ksi 107000 MPa

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