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) Cu Pb Zn Fe
(1) Cu + Sum of Named Elements 99.7% min.
Min (%) 64.0
Max (%) 68.5 0.09 Rem 0.05

Mechanical Properties:

Properties Metric Imperial
Hardness, Rockwell F 58 58
Hardness, HR30T 15 15
Tensile strength, 315 MPa 45700 psi
Yield strength 97.0 MPa 14100 psi
Elongation at break 65.00% 65.00%
Shear strength 220 MPa 31900 psi

Physical Properties:

Melting Point – Liquidus°F 1710
Melting Point – Solidus°F 1660
Density lb/cu in. at 68°F 0.306
Specific Gravity 8.47
Electrical Conductivity% IACS at 68°F 27
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 67
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 Tensionksi 15000
Modulus of Rigidityksi 5600

UNS C26800 Plate Dimension:

Alloy

 Process Size (mm)
Thickness Width

Length

C26800

 Hot Rolled 4-8 600-2000 ≤4000

8-60

 600-3000 ≤6000

>60-120

 600-2000 ≤4000
Cold Rolled 0.3-0.5 ≤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.