Phosphor Bronze

WEAR RESISTANCE

Excellent

CORROSION RESISTANCE

Excellent (marine)

DENSITY

8.86 g/cm³

HARDNESS

180–230 HB

CONDUCTIVITY

15% IACS

Technical Data

Composition, Mechanical & Equivalent Grades

Chemical Composition — C51000 (CuSn5)

CUSNPZNPBFE
Bal.4.2–5.80.03–0.35≤ 0.30≤ 0.05≤ 0.10

Mechanical Properties (hard temper)

PROPERTYUNITVALUE
Tensile StrengthMPa550–650
Yield Strength (0.2%)MPa480–550
Elongation A50%8–15
HardnessHB180–230
Densityg/cm³8.86
Melting Range°C975–1060
Electrical Conductivity% IACS15

International Equivalent Grades

STANDARDGRADE
ENCW451K • CuSn5
ASTMC51000
DIN2.1018
BSPB101
JISC5191

Why This Alloy

Engineering highlights

  • Excellent fatigue & spring properties
  • High wear resistance — ideal for bushings
  • Good corrosion resistance in marine & chemical service
  • Non-magnetic, non-sparking

Applications

Industrial applications

Bushings & sliding bearings
Springs & contacts
Pump & valve components
Marine fasteners
Electrical connectors
Manufacturing Capability
  • Centrifugal casting
  • Continuous casting
  • CNC turning
  • Cold rolling
Surface Finishes
  • As-cast
  • Machined
  • Polished
Industries Served
  • Marine
  • Electrical
  • Industrial Machinery
  • Automotive

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