Manufacturer of Custom Machined Parts

Cast C31600

C31600, or leaded commercial bronze (nickel bearing), combines the natural corrosion resistance and machinability of C31400 with a higher tensile and yield strength resulting from the controlled addition of nickel. Alloy C316 possesses cold workability as well as resistance to stress corrosion cracking.

Information

PRODUCT DESCRIPTION: Leaded Commercial Bronze (nickle-bearing)
TEMPERS: H02 Half Hard, H04 Hard
SOLIDS: 3/8” to 2” O.D.
HEX: 3/8" to 2" O.D.
RECTANGLES: Consult Mill
STANDARD LENGTHS: 144”

Typical Uses

BUILDERS HARDWARE: hardware
ELECTRICAL: connectors
FASTENERS: fasteners, nuts, screws
INDUSTRIAL: screw machine parts

Similar or Equivalent Specification

CDAASTMSAEAMSFederalMilitaryOther
C31600B140 B140MMIL-V-18436

Chemical Composition

Cu%Pb%Zn%Fe%Ni%
87.50-90.501.30-2.50Rem.0.04-0.100.70-1.20

Chemical Composition according to ASTM B140/B140M-12(2017)

Note: Cu + Sum of Named Elements, 99.6% min. Single values represent maximums.

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb / in³ at 68 °F)
C31600800.320

Mechanical Properties

Mechanical Properties according to ASTM B140/B140M-12(2017), H02 Half Hard

Size Range: 1/2" Diameter and Under

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 2 in. or 50 mm min Rockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
5034530205761

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

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 2 in. or 50 mm min Rockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
45310271851061

Size Range: Over 1" Diameter

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 2 in. or 50 mm min Rockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
40275251701258

H04 Hard
Size Range: 2" Diameter and Under

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 2 in. or 50 mm min Rockwell "B" HardnessRemarks
ksiMPaksiMPa%typical HRB
6041550345672

Physical Properties

 US CustomaryMetric
Melting Point - Liquidus1900 °F 1038 °C
Melting Point - Solidus1850 °F 1010 °C
Density0.32 lb/in³ at 68 °F 8.86 gm/cm³ at 20 °C
Specific Gravity8.868.86
Electrical Conductivity32% IACS at 68 °F 0.187 MegaSiemens/cm at 20 °C
Thermal Conductivity81 Btu/sq ft/ft hr/°F at 68 °F 140.2 W/m at 20 °C
Coefficient of Thermal Expansion 68-57210.2 · 10-6 per °F (68-572 °F)17.6 · 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 Tension17000 ksi117212 MPa

Fabrication Properties

TechniqueSuitability
SolderingExcellent
BrazingGood
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Spot WeldNot Recommended
Seam WeldNot Recommended
Butt WeldFair
Capacity for Being Cold WorkedGood
Capacity for Being Hot FormedPoor
Machinability Rating80

Thermal Properties

TreatmentMinimum *Maximum *
Annealing8001200

* Temperature is measured in Fahrenheit

Ready for a Quote?

Randall Bearings has a team of experts ready to assist you in selecting the proper materials and manufacturing your custom part.

Scroll to Top