IN 1982 CW453K | CuSn8

B8 | Bronze Copper Alloy Tin

Available formats: Bars, Tubes, Caps, Plates and Plates.

features

Bronze alloys such as phosphorous B8 such as C52100, also known as C521, consist of copper with 0.50? 11.00% of tin and 0.01? 0.35% of phosphorus.

 

Tin increases corrosion resistance and alloy strength. Phosphorus increases the wear resistance and rigidity of the alloy. These
Alloys are notable for their toughness, strength, low coefficient of friction and fine grain.

 

CuSn8 is used for elastic applications where high strength and wear resistance are required. Special features, such as extra-fine particle size or thermal-mechanical stress relief, improve mechanical properties and provide greater strength and greater malleability.

Applications

Architecture: bridge support plates.

Building: Thermostat

Consumer: Bellows. Energy conductor for electrosurgical pencil.

Electric: Miniaturized connectors, contact springs, Relais springs, electronic connectors, electrical connectors, cold head parts, electrical flex contact sheets, wire brushes, switch parts, fuse clips.

Fasteners: cotter pins, fasteners, heavy duty, lock washers.

Industrial: cold head parts, thrust bearings, reinforcement wire, pneumatic hammers, paper industry, pipe, drilling equipment, clutch discs, welding wire, diaphragms, mixer bar, bellows, springs, helical extension, helical torsion, clips , gears, pinions, textile machinery, perforated blades, chemical hardware, heavy duty, sleeve bushings.

Chemical composition

%
Cu
Neither
P
Pb
Sn
Zn
Al
Fe
S
Sb
Others
Si

Min.

-

-

0,03

-

7

-

-

-

-

-

-

-

Max.

99,5

-

0,35

0,05

9

0,2

-

0,1

-

-

-

-

Chemical composition according to ASTM B505 / B505M-18

features

Bronze alloys such as phosphorous B8 such as C52100, also known as C521, consist of copper with 0.50? 11.00% of tin and 0.01? 0.35% of phosphorus.

 

Tin increases corrosion resistance and alloy strength. Phosphorus increases the wear resistance and rigidity of the alloy. These
Alloys are notable for their toughness, strength, low coefficient of friction and fine grain.

 

CuSn8 is used for elastic applications where high strength and wear resistance are required. Special features, such as extra-fine particle size or thermal-mechanical stress relief, improve mechanical properties and provide greater strength and greater malleability.

Applications

Architecture: bridge support plates.

Building: Thermostat

Consumer: Bellows. Energy conductor for electrosurgical pencil.

Electric: Miniaturized connectors, contact springs, Relais springs, electronic connectors, electrical connectors, cold head parts, electrical flex contact sheets, wire brushes, switch parts, fuse clips.

Fasteners: cotter pins, fasteners, heavy duty, lock washers.

Industrial: cold head parts, thrust bearings, reinforcement wire, pneumatic hammers, paper industry, pipe, drilling equipment, clutch discs, welding wire, diaphragms, mixer bar, bellows, springs, helical extension, helical torsion, clips , gears, pinions, textile machinery, perforated blades, chemical hardware, heavy duty, sleeve bushings.

Chemical composition

Element
Min.%
Max. %

Cu


Neither


P


Pb


Sn


Zn


Al


Fe


S


Sb


Others / Alloys


Si

-


-


0,03


-


7


-


-


-


-


-


-


-

99,5


-


0,35


0,05


9


0,2


-


0,1


-


-


-


-

Chemical composition according to ASTM B505 / B505M-18

International Equivalences

BRONCESVAL
ISO / EN
W Nr / DIN
UNS / CDA
SAE
BS
DIN / ISO
ASTM

B8

CuSn8

CW453K

C52100

J461

PB104

-

B139M

Mechanical properties

Tensile strength
(MPa)
Elastic limit
(MPa)
Elongation
(%)
Brinell hardness
(HB)
Observations

415- 585

-

12-20

93

-

Mechanical properties according to ASTM B505 / B505M-18 depending on the temper.

International Equivalences

BRONCESVAL B8
ISO / EN CuSn8
W Nr / DIN CW453K
UNS / CDA C52100
SAE J461
BS PB104
DIN / ISO -
ASTM B139M

Mechanical properties

Tensile strength (MPa) 415- 585
Elastic Limit (MPa) -
Elongation (%) 12-20
Brinell hardness (HB) 93
Observations -

Mechanical properties according to ASTM B505 / B505M-18 depending on the temper.

General Physical Properties

Melting Point (Liquid) 1027 ° C
Melting Point (Solid) 882º C
Density 8.8 gm / cm at 20 ° C
Specific weight 8,8
Electric conductivity 0.076 MegaSiemens / cm at 20 ° C
Thermal conductivity 62.3 W / m at 20 ° C
Thermal expansion coefficient 17.4 · 10 -6 per ° C (20 ° -200 ° C)
Specific heat capacity 377 J / kg at 293 ° C
Tension Elasticity Module 110310 Mpa
Stiffness module 41370 MPa

Physical properties provided by CDA

Manufacturing Properties

Welding Excellent
Braised Excellent
Oxyacetylene Welding Half
Gas arc welding Good
Coated Metal Arc Welding Half
Machinability Classification 20

Manufacturing properties provided by CDA

Formats

  • B8 Bronze Bars
  • B8 Bronze Tubes
  • B8 Bronze Caps
  • B8 Bronze Plates
  • B8 Bronze plates

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