ANSONIA COPPER & BRASS, INC.

 

COPPER ALLOY DATA SHEET

 

C64200 and C64210

 

Nominally composed of 91.2% copper, 7.0% aluminum, and 1.8% silicon, Everdur C64200 is an engineering alloy at least as resistant to corrosion as copper itself, but much stronger.  In an annealed condition, this alloy has a tensile strength of 88,000 psi.  It is also non-magnetic and has good fatigue and galling resistance.  It has the highest machinability rating of bronzes and brasses without lead addition. Its combination of machinability, strength, hot forgeability, corrosion and wear resistance make it a remarkable alloy.  It is one of the lightest of the copper base alloys.

 

For special applications requiring certification to the Chlorine Institute, Ansonia Copper & Brass also produces C64210, which has a stricter chemistry than C64200.  Aluminum and silicon are held to tighter ranges resulting from lower maximum limits set for each.  The nominal composition of C64210 is 91.6% copper, 6.65% aluminum, and 1.75% silicon.

 

Hot Working:  C64200 and C64210 have excellent hot workability and are used for hot forging.

 

Cold Working:  C64200 and C64210 have poor cold workability, so cold working is not recommended.

 

Joining:  Joining by soldering or oxyacetylene welding is not recommended.  Joining by brazing and other welding methods such as gas shielded arc welding is fair.

 

Applications:  C64200 and C64210 are manufactured mostly in the form of round, hexagonal, and octagonal rods for hot forming and free machining.  Although not recommended for cold working or welding, these alloys have exceptionally high strength.  Studs, bolts, and forgings are well suited for heavy switchgear and electrical hardware, especially in outdoor construction.  C64200 and C64210 are considered to be two of the best valve stem alloys.  Other applications include gears, marine hardware, nuts, pole line hardware, and valve bodies and components.

 

Applicable Specifications:  When so specified, C64200 and C64210 will be manufactured to the latest revision of the following specifications:  ASTM Specifications  B124 and B150; AMS Specifications 4633 and 4634, Chlorine Institute No. 112.

 

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

 

ADS No. C64200 & C64210

Rev. No. 2

Rev. Date 2/8/01

C64200 C64210

 

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 C64200 and C64210

 

 

Nominal Composition:                         C64200                                C64210

                                                          91.2% Copper                      91.6% Copper

                                                         7.0% Aluminum                    6.65% Aluminum

                                                            1.8% Silicon                         1.75% Silicon

 

Physical Properties:

 

            Melting Point (Liquidus):                                            1005°C (1840°F)

                                    (Solidus):                                             985°C (1800°F)

            Density at 68°F:                                                         0.278 Lbs./In.3

            Coefficient of Linear Thermal Expansion per °F:     1.00 x 10-5 (68-572°F)

            Electrical Conductivity at 68°F (volumetric):           8% IACS (in the annealed condition; lower in hard temper)

            Thermal Conductivity Btu/ft.2/ft./hr./°F at 68°F:       26

            Modulus of Elasticity - Tension:                                 16,000 ksi

            Modulus of Rigidity:                                                    6,000 ksi

 

Fabrication Properties:

 

            Hot Working Temperature:                   700-870°C (1300-1600°F)

            Annealing Temperature:                        600-700°C (1100-1300°F)

            Approximate Relative Machinability:    60 (free cutting brass arbitrarily rated at 100)

 

Mechanical Properties:

 

 

 

 

Size and Temper

Tensile Strength

(psi)

Yield Strength

(0.5% EUL) (psi)

% Elongation

(in 2")

Rockwell Hardness

 

 

 

 

 

0.500" Dia. Rod

 

 

 

 

O50 Light Anneal

92,000

58,000

22

HRB 98

 

 

 

 

 

0.750" Dia. Rod

 

 

 

 

M30 As Hot Extruded

75,000

35,000

32

HRB 77

O50 Light Anneal

90,000

55,000

28

HRB 89

HR50 Drawn and SR

102,000

68,000

22

HRB 94

 

 

 

 

 

1.500" Dia. Rod

 

 

 

 

HR50 Drawn and SR

93,000

60,000

26

HRB 90

 

 

 

 

 

0.750" Bar

 

 

 

 

M30 As Hot Extruded

75,000

35,000

32

HRB 77

 

ADS No. C64200 & C64210

Rev. No. 2

Rev. Date 2/8/01

C64200 C64210

 

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.