Copper Alloys Phosphor Bronze C51900

 Product Data Sheet – Copper Alloys

Phosphor Bronze, 5-7% Tin  UNS-C51900

Chemical Composition

% Max, unless shown as range or Minimum

Copper Iron Lead Phosphorus Tin Zinc
Min/Max
Remainder
0.10
0.05
0.03-0.035
5.0-7.0
0.30
Nominal
93.8
0.20
6.0

Note: Cu + Sum of Named elements, 99.5% min

 

Applicable Specifications

Product Specification
Bar, Rolled
ASTM B103
Plate
ASTM B103
Sheet
ASTM B103
Strip
ASTM B103

Fabrication Properties

Joining Technique Suitability
Soldering
Excellent
Oxy Acetylene Welding
Fair
Gas Shielded Arc Welding
Good
Coated Metal Arc Welding
Poor
Spot Weld
Good
Seam Weld
Poor
Butt Weld
Excellent
Fabrication Technique Suitability
Capacity for Being Cold Worked
Excellent
Capacity for Being Hot Worked
Excellent
Machinability Rating
20

 

Mechanical Properties

AS1566 Rolled Flat Products & AS1567 Wrought Rods, Bars & Sections.

Temper
Section Size
Tensile Strength Minimum
Yield Strength (0.2% offset) Elongation
mm
MPa
MPa %
H02
0.0
496
434
25
H04
0.127
607
586
13
H06
0.0
689
662
6
H08
0.0
738
710
4
H10
0.0
765
731
2
HR02
0.0
496
400
30
HR04
0.0
607
531
17
HR06
0.0
689
614
12
HR08
0.0
738
655
10
HR10
0.0
765
669
9
OS101
0.127
379
45
OS015
0.0
386
200
45
OS025
0.0
365
193
56
OS035
0.0
358
186
61
OS050
0.0
345
179
66

 

Typical Uses

Electrical: Electronic Connectors, Electrical Connectors, Electrical Flexing Contact Blades.

 

Physical Properties

Property
Metric Units
Imperial Units
Melting Point (Liquidus)
1040°C
1900°F
Melting Point (Solidus)
930°C
1700°F
Density
8.84 gm/cm³ @ 20°C
0.319 lb/in³ @ 68°F
Specific Gravity
8.84
8.84
Coefficient of Thermal Expansion
18.0 x 10 -6 / °C (20-300°C)
10.0 x 10 -6 / °F (68-392°F)
Themal Conductivity
65.8 W/m. °K @ 20°C
38 BTU/ft³/ft/hr/°F @ 68°F
Thermal Capacity (Specific Heat)
377.1 J/kg. °K @ 20°C
0.09 BTU/lb/°F @ 68°F
Electrical Conductivity (Annealed)
0.081 MegaSiemens/cm@ 20°C
14% IACS @ 68°F
Electrical Resistivity (Annealed)
12.2 microhm.cm @ 20°C
74 ohms (circ mil/ft)@ 68°F
Modulus of Elasticity (tension)
110,300 MPa
16,000 ksi
Modulus of Rigidity (torsion)
14,370 MPa
6,000 ksi

 

The technical advice and recommendations made in this Product Data Sheet should not be relied or acted upon without conducting your own further investigations, including corrosion exposure tests where needed. Please consult current editions of standards for design properties. Austral Wright Metals assumes no liability in connection with the information in this Product Data Sheet. Austral Wright Metals supplies a comprehensive range of stainless steels, copper alloys, nickel alloys and other high performance metals for challenging service conditions. Our engineers and metallurgists will be pleased to provide further data and applications advice.

 

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