Manufacturer of Custom Machined Parts

Cast C67600

C67600 manganese bronze is a versatile extruded and drawn alloy known for its high strength and good corrosion resistance. In addition, C676 has a fairly low melting temperature and a moderately low heat capacity.

Information

PRODUCT DESCRIPTION: Manganese Bronze
TEMPERS: H02 Half Hard, H04 Hard
SOLIDS: 3/4" to 3" O.D.
HEX: Consult Mill
RECTANGLES: Consult Mill
STANDARD LENGTHS: 144”

Typical Uses

INDUSTRIAL: gate valve stems, valve balls, welding rod

Similar or Equivalent Specification

CDAASTMSAEAMSFederalMilitaryOther
C67600B138 B138MQQ-B-728

Chemical Composition

Cu%1Pb%Sn%Zn%Fe%Mn%
57.00-60.000.50-1.000.50-1.50Rem.0.40-1.300.05-0.50

Chemical Composition according to ASTM B138/B138M-12(2017)

¹Cu value includes Ag
Note:Single values represent maximums.

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb / in³ at 68 °F)
C67600600.302

Mechanical Properties

Mechanical Properties according to ASTM B138/B138M-11(2017)

H02 Half Hard
Size Range: Up to 1" Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4x Diameter or Thickness of Specimen, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
72496362481390

Size Range: Over 1" to 2 1/2" Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4x Diameter or Thickness of Specimen, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
70483352411590

Size Range: Over 2 1/2"

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4x Diameter or Thickness of Specimen, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
65448322211790

H04 Hard
Size Range: Up to 1" Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4x Diameter or Thickness of Specimen, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
80552563868

Size Range: Over 1" to 2 1/2" Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4x Diameter or Thickness of Specimen, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
765245235910

Size Range: Over 2 1/2"

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4x Diameter or Thickness of Specimen, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
684694531016

Physical Properties

 US CustomaryMetric
Melting Point - Liquidus1630 °F 888 °C
Melting Point - Solidus1590 °F 866 °C
Density0.302 lb/in³ at 68 °F 8.36 gm/cm³ at 20 °C
Specific Gravity8.368.36
Electrical Conductivity24% IACS at 68 °F 0.14 MegaSiemens/cm at 20 °C
Thermal Conductivity61 Btu/sq ft/ft hr/°F at 68 °F 105.65 W/m at 20 °C
Coefficient of Thermal Expansion 68-57211.8 · 10-6 per °F (68-572 °F)20.4 · 10-6 per °C (20-300 °C)
Specific Heat Capacity0.09 Btu/lb/°F at 68 °F377.1 J/kg at 20 °C
Modulus of Elastic in Tension15000 ksi103422 MPa
Modulus of Rigidity5600 ksi38611 MPa

Fabrication Properties

TechniqueSuitability
SolderingExcellent
BrazingExcellent
Oxyacetylene WeldingGood
Gas Shielded Arc WeldingFair
Spot WeldGood
Capacity for Being Cold WorkedPoor
Capacity for Being Hot FormedExcellent
Forgeability Rating80
Machinability Rating30

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