CuZn37

Brass Sheet

Available formats: Badges and plates.

Typical applications and uses

Broncesval Brass Sheet, with a chemical composition CuZn37 is used for a wide variety of purposes that involve cold work by forming, stretching, turning, etc.

 

Lamp covers and switch components. Strip and wire for springs and contacts

 

To avoid this, the 64/36 composition is now more commonly used. Except in particularly aggressive environments, CuZn37 slowly fades to a uniform opaque bronze color without bites or localized attacks. Its original appearance can be preserved, if necessary, by regular lacquering or polishing.

 

Since these bronzes do not contain arsenic to inhibit decincification, they are not recommended for service in contact with seawater. However, they are the standard materials for the central pipes and head tanks of car radiators and similar coolers that operate with fresh water recirculation or inhibited antifreeze solutions, and are completely satisfactory for that purpose.

Heat treatments:

Known as "common brass," this is a good general purpose alloy suitable for simple formation.

 

The CuZn37 brass, with 63% Cu and 37% Zn, has a zinc content very close to the maximum for all alpha brass. Modern methods of band production involve rapid cooling after annealing and can result in small amounts of beta phase being retained, with the consequent reduction in corrosion resistance.

 

For less demanding fabrications, such as spring contacts in a household outlet, an alloy with a higher zinc content (and therefore a lower price) can be used, such as CuZn37 (common brass). This alloy is not as ductile as CuZn30, although other mechanical properties are similar. They are perfectly suitable for all the most severe cold work operations.

Chemical Composition According to EN 12165

%
Cu
Al
Ace
Fe
Mn
Neither
Pb
Sn
Zn
Others
Specific weight
Approx. g / cm3

Min.

62

-

-

-

-

-

-

-

Rem.

-

-

Max.

64

0,05

-

0,1

-

0,3

0,1

0,1

-

0,1

8,4

Chemical Composition According to EN 12165

Element
Min.%
Max. %

Cu


Al


Ace


Fe


Mn


Neither


Pb


Sn


Zn


Others


Specific Weight Approx. g / cm3

62


-


-


-


-


-


-


-


Rem.


-


-

64


0,05


-


0,1


-


0,3


0,1


0,1


-


0,1


8,4

International Equivalences

BRONCESVAL
ISO / EN
UNE
ASTM (UNS)
JIS
BS
W Nr / DIN
Old DIN

BRASS SHEET

CuZn37

C-6137

C27200, C27400

C2700, C2720

Cz108

CW508L

2.0321

International Equivalences

BRONCESVAL BRASS SHEET
ISO / EN CuZn37
UNE C-6137
ASTM (UNS) C27200, C27400
JIS C2700, C2720
BS Cz108
W Nr / DIN CW508L
Old DIN 2.0321

Mechanical properties

Tensile strength
(MPa)
Elastic limit
(MPa)
Elongation
(%)
Hardness
Rockwell b

510

379

10

80

Mechanical properties

Tensile strength
(MPa)
510
Elastic limit
(MPa)
379
Elongation
(%)
10
Hardness
Rockwell b
80

Physical Properties

Melting point 920 º C
Density 8.45 g / cm³
Specific heat 380 J / Kg ° K
Thermal conductivity (RT) 125 W / m ° K
Coefficient of thermal expansion (20-200 ° C) 21 x 10-6 º C
Electric conductivity 26 % IACS
Electrical resistivity 0.066 ohm mm2 / m
Modulus of elasticity 103.4 GPa

Manufacturing Properties

Hot working temperature range 720 - 820 º C
Hot formability Good
Cold formability Good
Cold reduction between annealing 65 %
Machinability rating (brass free cut = 100) 35 %
Temp. Annealing Range 450 - 650 º C
Temp. To relieve stress Rank 250 - 350 º C

Formats

  • CuZn37 Brass Plates
  • CuZn37 Brass Plates

Specialized Technical Advice

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(+34) 961 340 776

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