ASTM B455 Extruded Leaded-Brass Rod and Bar

  • UNS C38000, UNS C38500
  • Round: Dia. 2.4 – 200mm
  • Hexagonal & Octagonal: 3 – 50mm
  • Square: 5-38mm
  • Rectangular: T: 5-38mm x W: 5-65mm

Features

ASTM B455 Extruded Leaded-Brass Rod and Bar

Chemical Composition (wt.%)
Element UNS C38000 (%) UNS C38500 (%)
Copper 55.0 – 60.0 55.0 – 59.0
Lead 1.5 – 2.5 2.5 – 3.5
Zinc Remainder Remainder
Iron (max) 0.35 0.35
Tin (max) 0.3 Not Specified
Aluminum (max) 0.5 Not Specified
Mechanical Properties
Property UNS C38000 and C38500
Tensile Strength, min (ksi [MPa]) 48 [330]
Yield Strength at 0.5% extension, min (ksi [MPa]) 16 [110]
Elongation in 2 in. (50.8 mm), min (%) 15

Technical Specifications

Specification Value
Standard ASTM B455 Extruded Leaded-Brass Rod and Bar
Grade UNS C38000 (CuZn40Pb2, CW617N, EN 2.0402), UNS C38500 (CuZn39Pb3, CW614N, EN 2.0401)
Type of Alloy Copper-Zinc-Lead Alloy
Manufacturing Process Extruded
Shape of Bars Round, Hexagonal and Octagonal, Square and Rectangular
Density 8.9g/cm³
Diameter Round: Dia. 2.4 – 200mm; Hexagonal & Octagonal: 3 – 50mm; Square: 5-38mm; Rectangular: T: 5-38mm x W: 5-65mm
Length 1000 – 6000mm
Inspection Certificate EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection)
NDE Tests UT/ET, Chemcial Analysis, Tensile Test
Packing

Small diameter packed in plywood box; large diameter packed on plywood pallets.

Application

UNS C38000: This alloy is used in architectural hardware, plumbing fittings, and general engineering components due to its excellent machinability, moderate strength, and good corrosion resistance.
UNS C38500: Employed in decorative applications, building hardware, and valve components, this alloy features enhanced machinability and corrosion resistance, making it ideal for both aesthetic and functional uses in mild corrosive environments.

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