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Brass Strip

C27200 Brass Strip

Product description:High mechanical strength, good thermos-plasticity, good cutting performance, easy to dezincification and stress cracking in some cases Specifications: Thickness 0.05-3.0mm, width 10-1050mm States: M (soft), Y2 (1/ 2 hard), Y (hard) Applications: Lamps, zippers, medals, hardware accessories, etc.
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Chemical Composition


Alloy Grade Cu Fe Pb Ni Zn Impurity
C28000 57.0-60.0 0.3 0.5 0.5 margin 1
C28000 60.5-63.5 0.15 0.08 0.5 margin 0.5
C27000 63.5-68.0 0.1 0.03 0.5 margin 0.3
C26200 67.0-70.0 0.1 0.03 0.5 margin 0.3
C26000 68.5-71.5 0.1 0.03 0.5 margin 0.3
C24000 79.0-81.0 0.1 0.03 0.5 margin 0.3
C23000 84.0-86.0 0.1 0.03 0.5 margin 0.3
C22000 88.0-91.0 0.1 0.03 0.5 margin 0.2
C21000 95.0-97.0 0.1 0.03 0.5 margin 0.2


Mechanical Properties


Alloy Grade

Melting Temperature

Boiling

Point

Density

kg·(kg·mˉ3

J·(kg·℃)ˉ1

Coefficient 

of Linear 

Expansion

Thermal

Conductivity

W·(m·K)ˉ1

Conductivity

%IACS

Conductivity

%IACS

Resistivity

μΩ·m

Liquidus Solidus

Solid

state

Liquid

state

C28000 896 886 8400 21.0X10ˉ6 125.1 0.0025
C28000 906 899 8430 20.6X10ˉ6 116.7 27 0.071 0.0017
C27000 936 906 8470 20.1X10ˉ6 116.7 27 0.067
C26200 939 910 8500 20.0X10ˉ6 116.7 27 0.064 0.0015
C26000 951 916 ≈ 1150 8530 0.09 19.9X10ˉ6 120.9 28 0.062 0.39 0.0015
C25000 981.2 8630 19.6X10ˉ6 120.9 30 0.057
C24000 1001.2 966 ≈ 1240 8660 0.093 19.1X10ˉ6 141.7 32 0.054 0.33 0.0015
C23000 1026.3 991 ≈ 1300 8750 0.095 18.7X10ˉ6 151.7 37 0.047 0.29 0.0016
C22000 1046.4 1026.3 ≈ 1400 8800 0.095 18.4X10ˉ6 187.6 44 0.04 0.27 0.0018
C21000 1071.4 1056.4 ≈ 1600 8850 0.093 18.0X10ˉ6 243.9 57 0.031 0.24 0.0027


Introduction


Copper plate is a highly stable, low maintenance roofing and curtain wall material that is environmental, safe to use, easy to process and highly resistant to corrosion. A stable protective layer allows the life of the copper plate to exceed 100 years. The economic performance of copper plate is one of the best metal roofing materials.

1) The yield strength of the copper plate is inversely proportional to the elongation. The hardness of the copper plate after bending processing is extremely high, but it can be reduced by heat treatment.

2) Among all the metal materials used in construction, copper has the best extension properties and has great advantages in architectural modeling.

3) The copper plate is not limited by the processing temperature, and is not brittle at low temperature, and can be hot-melt welded by oxygen blowing at a high melting point.

4) Fireproof, non-combustible material.

5) Even in extremely corrosive atmospheres, copper plates form a strong, non-toxic passivation protective layer, which is commonly called "verdigris." The chemical composition depends on the air conditions in the area, but the "verdigris" of various compositions has the same protective effect on the copper. This layer of passive film is very stable and can be repaired automatically by damage. It is difficult to distinguish with the naked eye.

Application

The copper plate has excellent processing adaptability and strength, and is suitable for arcing, trapezoidal, cornering etc. in various processes and systems such as a flat lock system, a vertical edge occlusion system, a BEM system, a unit wall plate, and a rain drainage system.

 A variety of surface treatments to meet different architectural needs.

(1) A copper oxide sheet can form a uniform brown appearance.

(2) The patina board is used for renovation of old buildings or new construction with special requirements.

(3) The original copper plate has a gradual change in metallic luster, making the building as life-like.

(4) Tin-copper plate can achieve the effect of titanium-zinc plate.


sashafu@cycopper.com