ANSONIA COPPER & BRASS, INC.

 

 

 

 

COPPER ALLOY DATA SHEET

 

C50700

 

Nominally composed of 98.1% copper, 1.75% tin, and 0.15% phosphorus, Low-Tin Phosphor Bronze C50700 is noted for its excellent corrosion resistance, ductility, and good resistance to fatigue.  It also has good electrical and thermal conductivity and flexibility.

 

Hot Working:  C50700 has good hot workability.

 

Cold Working:  C50700 has excellent cold workability and is well suited to all forms of cold work.  When annealed, the alloy can be readily bent and formed.  With the proper temper in wire, a good combination of high strength and high percent reduction in area can be achieved making it excellent for cold heading.

 

Joining:  Joining by soldering and brazing is excellent.  Joining by oxyacetylene welding is fair, while good by gas shielded arc welding and spot welding.

 

Applications:  Typical applications include messenger wire for railroad electrification and resistance wire.

 

Applicable Specifications:  When so specified, C50700 will be manufactured to the latest revision of the following specification:  ASTM B105.

 

Standard Forms Available:  Rod and wire.  For other forms, please consult Ansonia Copper & Brass, Inc.

 

 

 

 

 

ADS No. C50700

Rev. No. 2

Rev. Date 1/11/01

C50700

 

P. O. Box 109 - Ansonia, Connecticut 06401

725 Bank St. - Waterbury, Connecticut 06708

Tel.:  1-800-521-1703        FAX 203-735-3787

Tel.:  1-800-243-3204            FAX 203-756-1330

 

 

 

 

PROPERTIES OF C50700

 

 

Nominal Composition:                      98.1% Copper

                                                                1.75% Tin

                                                          0.15% Phosphorus

 

Physical Properties:

 

            Melting Point (Liquidus):                                            1070°C (1958°F)

            Density at 68°F:                                                         0.321 Lbs./In.3

            Coefficient of Linear Thermal Expansion per °F:     9.9 x 10-6 (68-572°F)

            Electrical Conductivity at 68°F (volumetric):           35% IACS (in the annealed condition; lower in hard temper)

            Thermal Conductivity Btu/ft.2/ft./hr./°F at 68°F:       95

            Modulus of Elasticity - Tension:                                 17,000 ksi

            Modulus of Rigidity:                                                    6,400 ksi

 

Fabrication Properties:

 

            Hot Working Temperature:                   800-875°C (1450-1600°F)

            Annealing Temperature:                        475-650°C (900-1200°F)

            Approximate Relative Machinability:    20 (free cutting brass arbitrarily rated at 100.)

 

 

Mechanical Properties: 

 

Size

(Inch)

Tensile Strength

(psi)

% Elongation

(in 10")

 

 

 

 

 

0.080 Dia. Wire

 

 

 

Hard (80%)

79,000

1

 

 

 

 

 

0.460 Dia. Wire

 

 

 

Hard (70%)

72,000

4

 

 

 

 

 

 

 

ADS No. C50700

Rev. No. 2

Rev. Date 1/11/01

C50700

 

The statements and data provided on this data sheet are to be considered only as a general guide.  Commercial variations in material properties are expected, so values listed here are not intended to be used for specifications.  Please consult the appropriate industry specifications where applicable.  Ansonia Copper & Brass, Inc. also cannot assume responsibility for performance of these products in service because we do not control or supervise subsequent use of our products.