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C93400 High Leaded Tin Bronze

Similar or Equivalent Specification

CDA	ASTM	ASARCON	SAE	AMS	Federal	Ingot#	Military	Other Desc
C93400	B505	88			QQ-C-390 B TYPE III	311	MIL-B-11553 COMP. 8
					QQ-B-1005 COMP. 8

Chemical Composition (according to ASTM B505-08)

Cu%	Sn%	Pb%	Zn%	Fe%	Ni%	Sb%	P%	S%	Al%	Mn%	Si%
Note: Single values represent maximums. † In determining copper minimum, copper may be calculated as copper plus nickel.
82.00-85.00	7.00-9.00	7.00-9.00	0.80	0.20	1.00†	0.50	1.5	0.08	0.005	N/A	0.005

Mechanical Properties (according to ASTM B505-08)

Tensile Strength (min)		Yield Strength (at .5% extention under load min)		Elongation (in 2in. or 50mm min, %)	Brinell Hardness (min)	Remarks
Ksi	MPa	Ksi	MPa
34	234	20	138	8

Machinability

Alloy	Rating	Density
C93400	70	0.320

Physical Properties (provided by CDA)

	US Customary	Metric
Density	0.320 lb/in3 at 68 F	8.86 gm/cm3 @ 20 C
Specific Gravity	8.860	8.86
Electrical Resistivity	85.90 ohms-cmil/ft @ 68 F	14.29 microhm-cm @ 20 C
Electrical Conductivity	12 %IACS @ 68 F	0.07 MegaSiemens/cm @ 20 C
Thermal Conductivity	33.60 Btu · ft/(hr · ft2·°F)at 68F	58.2 W/m · °K at 20 C
Coefficient of Thermal Expansion	10 ·10-6 per oF (68-392 F)	18.0 ·10-6 per °C (20-200 C)
Specific Heat Capacity	0.090 Btu/lb/°F at 68 F	377.1 J/kg · °K at 293 K
Modulas of Elasticity in Tension	11000 ksi	75800 MPa

Fabrication Properties (provided by CDA)

Joining Technique	Suitability
Soldering	Good
Brazing	Good
Oxyacetylene Welding	Not Recommended
Gas Shielded Arc Welding	Not Recommended
Coated Metal Arc Welding	Not Recommended

Thermal Properties (provided by CDA)

Treatment	Temp./Time - US	Temp./Time - SI
Stress Temperature	500	260
Solution Minimum
Solution Maximum
Solution Time	0.0
Solution Medium	None
Precipitation Value
Precipitation Time
Precipitation Medium	None
Annealing Minimum
Annealing Maximum
Annealing Time
Hot Works Minimum
Hot Works Maximum