Silicon Bronze 655 Material Property Data Sheet

Herculoy®, High-Silicon Bronze A, UNS C65500, H06 (50%) Temper rod

Subcategory: Bronze; Copper Alloy; Metal; Nonferrous Metal

Key Words: HCDA 655, CS101, ISO CuSi3Mn1, CEN CS101, copper-silicon, silicon bronze

Component    Wt. % Cu 97   Fe Max 0.8   Mn Max 1.5   Ni Max 0.6   Pb Max 0.5   Si 2.8 - 3.8   Zn Max 1.5

Material Notes:
Good to excellent corrosion resistance. Excellent hot and cold workability. Fabricated by blanking, drawing, forming and bending, heading and upsetting, hot forging and pressing, roll threading and knurling, shearing, squeezing, and swaging.

Applications: hydraulic pressure lines, anchor screws, bolts, cable clamps, cap screws, machine screws, marine hardware, nuts, pole-line hardware, rivets, U-bolts, electrical conduits, heat exchanger tubing, welding rod, propeller shafts.

Physical Properties	Metric	English	Comments
Density	8.53 g/cc	0.308 lb/in³	at 20°C (68°F)
Mechanical Properties
Hardness, Rockwell B	95	95
Tensile Strength, Ultimate	745 MPa	108000 psi
Tensile Strength, Yield	415 MPa	60200 psi	0.5% extension under load
Elongation at Break	13 %	13 %	In 50 mm
Modulus of Elasticity	105 GPa	15200 ksi
Poisson's Ratio	0.346	0.346
Machinability	30 %	30 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	39 GPa	5660 ksi
Shear Strength	425 MPa	61600 psi
Electrical Properties
Electrical Resistivity	2.46e-005 ohm-cm	2.46e-005 ohm-cm	at 20°C (68°F)
Thermal Properties
CTE, linear 250°C	18 µm/m-°C	10 µin/in-°F	from 20-300°C (68-570°F)
Heat Capacity	0.38 J/g-°C	0.0908 BTU/lb-°F
Thermal Conductivity	36 W/m-K	250 BTU-in/hr-ft²-°F
Melting Point	970 - 1025 °C	1780 - 1880 °F
Solidus	970 °C	1780 °F
Liquidus	1025 °C	1880 °F
Processing Properties
Annealing Temperature	475 - 700 °C	887 - 1290 °F
Hot-Working Temperature	700 - 875 °C	1290 - 1610 °F
Recrystallization Temperature	4.44 °C	40 °F	C37700 (forging brass) = 100%

References are available for this material.