UNS C26800 is a type of Yellow Brass (Copper-Zinc Alloy) with 66% Copper content. It is fair to excellent corrosion resistance, moreover, C26800 has excellent cold workability. CW506L is the EN numeric designation for this material. C26800 is the UNS number. Additionally, the EN chemical designation is CuZn33. The British Standard (BS) designation is CZ107.

Chemical Composition:

Elements
Value(1)CuPbZnFe
(1) Cu + Sum of Named Elements 99.7% min.
Min (%)64.0
Max (%)68.50.09Rem0.05

Mechanical Properties:

PropertiesMetricImperial
Hardness, Rockwell F5858
Hardness, HR30T1515
Tensile strength,315 MPa45700 psi
Yield strength97.0 MPa14100 psi
Elongation at break65.00%65.00%
Shear strength220 MPa31900 psi

Physical Properties:

Melting Point – Liquidus°F1710
Melting Point – Solidus°F1660
Density lb/cu in. at 68°F0.306
Specific Gravity8.47
Electrical Conductivity% IACS at 68°F27
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F67
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F)11.3
Specific Heat CapacityBtu/ lb /°F at 68°F<0.09
Modulus of Elasticity in Tensionksi15000
Modulus of Rigidityksi5600

UNS C26800 Plate Dimension:

Alloy

ProcessSize (mm)
ThicknessWidth

Length

C26800

Hot Rolled4-8600-2000≤4000

8-60

600-3000≤6000

>60-120

600-2000≤4000
Cold Rolled0.3-0.5≤600

≤2000

>0.5-3.0≤1000

≤3000

>3.0-10≤3000

≤6000

Available products forms:
Welded Tube: ASTM B537
Plate, Sheet, Strip: ASTM B36/36M, SAE J461, SAE J463
Rod, Bar & Shapes: ASTM B927/B927M, ASTM B36/B36M, SAE J461, SAE J463

Applications:
Radiator cores, tanks, flashlight shells, lamp fixtures, fasteners, locks, hinges, plumbing accessories, pins, and rivets.