bedra52100

Phosphor Bronze

Characteristics:

It is a phosphor bronze alloy consisting of approximately 8% tin. The tin enhances its corrosion resistance and strength, while the phosphorus improves its wear resistance and stiffness. This alloy is typically manufactured in a hard temper, resulting in very high tensile strength that makes it suitable for high-load applications, especially given its excellent fatigue properties.

Typical applications:

It is mainly used in high-impact bearing and load-bearing applications that require excellent wear resistance. Additionally, it is employed in electrical connectors and elastic components such as springs and reeds.

Standardization and composition

UNS C52100
EN CuSn8 (CW453K)
JIS C5212
GB C52100 (QSn8-0.3)
Cu balance
Pb ≤0.02%
P 0.01-0.4%
Sn 7.5-8.5%
Fe ≤0.1%
Ni ≤0.2%

Physical properties①

Note①:The testing temperature is 20℃. Note②:The testing temperature range is 20℃ to 300℃.

Density (g/cm³) 8.8
Metling temperature (℃) 1027
Electrical conductivity (%IACS) 13
Thermal conductivity (W / m x K) 62
Coefficient of thermal expansion② (10-6/K) 17.5
Modulus of elasticity (GPa) 110.3

Fabrication Properties

Note③:C36000 = 100%

Cold workability Good
Hot workability Poor
Brazing Excellent
Machinability rating③ 20%

Mechanical Properties④

Note④:bedra technical standards

Temper Diameter (mm) Tensile Strength (MPa min.) Yield Strength (MPa min.) Elongation (% min.) Hardness (HB min.)
R450 20≤Φ≤50 450 280 26 140
R400 50<Φ≤100 400 280 26 100

Dimension Tolerance and Delivery Form

Note④:The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.

      Straight bar  
Diameter (mm) Tolerance④ (mm) Ovality (mm) Length (mm. max.) Straightness (mm/m max.)
20 ≤ Φ < 30 0.17 0.09 3000 2.0
30 ≤ Φ < 50 0.20 0.10 3000 3.0
50 ≤ Φ < 80 0.37 0.20 3000 4.0
80 ≤ Φ ≤ 100 0.50 0.25 2000 4.0

Other Delivery Forms

Tubes, Profiles

Further product information

Please contact us

Sales Asia-Pacific (Excluding-India)

Tracy Lu

Tracy Lu

Sales Director Asia-Pacific (Excluding India)

Leo Zhang

Leo Zhang

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Jacob Kuvvarapu

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Jay Davda

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Supervisor of Inside Sales

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Sales & Marketing Director North America

Stephen Garner

Stephen Garner

Sales Manager North America

Tom Zhou

Tom Zhou

Supervisor of Inside Sales

Sales Europe

Tony Zeng

Tony Zeng

General Manager Sales/Marketing of Rod & Wire Europe

Wolfram Schillinger

Wolfram Schillinger

Director of Technical Marketing Rod & Wire Europe

Anthony Dick

Anthony Dick

Sales Manager Rod & Wire Europe

Helen Yang

Helen Yang

Supervisor of Inside Sales

Berkenhoff GmbH (headquarters)

  • Kinzenbach plant
  • Berkenhoffstrasse 14
  • 35452 Heuchelheim
  • Germany

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  • 35745 Herborn
  • Germany

bedra Vietnam Alloy Material Co., Ltd

  • Lot CN-06, Hoa Phu Industrial Park,
    Mai Dinh Commune,
    Hiep Hoa District, Bắc Ninh Province,
    Vietnam
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