Cast Copper Alloys: Bronzes (C90000 - C95999)

Standard Designation for Cast Copper Alloys

C90000-C91999: Copper-Tin Alloys (Tin Bronzes)
C92000-C92900: Copper-Tin-Lead Alloys (Leaded Tin Bronzes)
C93000-C94500: Copper-Tin-Lead Alloys (High-Leaded Tin Bronzes)
C94600-C94999: Copper-Tin-Nickel Alloys (Nickel-Tin Bronzes)
C95000-C95999: Copper-Aluminum-Iron and Copper-Aluminum-Iron-Nickel Alloys (Aluminium Bronzes)

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UNS #	Cu		Pb		Sn		Zn		Fe		P		Ni		Al		Mg		Mn		S		Sb		Si		Other Named Elements		Status
UNS #	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Min%	Max%	Status
C90200	91.0⁽¹⁾⁽²⁾	94.0		0.30	6.0	8.0		0.50		0.20		0.05⁽³⁾		0.50⁽⁴⁾		0.005						0.05		0.20		0.005			active
C90250 Tin Bronze	89.0	91.0		0.30	9.0	11.0		0.50		0.25		0.05		2.0		0.005				0.20		0.05		0.02		0.005			active
C90280*	87.0	90.0⁽⁵⁾		.09	9.0	11.0			.30	.6		.05									.30	.6							active
C90300 Tin Bronze	86.0	89.0⁽¹⁾⁽²⁾		0.30	7.5	9.0	3.0	5.0		0.20		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.05		0.20		0.005			active
C90400* Tin Bronze	86.0⁽⁶⁾	89.0		0.09	7.5	8.5	1.0	5.0		0.40		0.05		1.0		0.005				0.01	0.10	0.65		0.02		0.005		0.10 B 0.10 Zr	active
C90410* Tin Bronze	86.0	89.0⁽⁶⁾		0.09	7.5	8.5	1.0	5.0		0.40		0.05		1.0		0.005			0.01	0.20	0.10	0.65		0.02		0.005		0.10 B 0.10 Zr	active
C90420* Tin Bronze	86.0⁽⁶⁾	89.0		0.09	7.5	8.5	1.0	5.0		0.40		0.05		1.0						0.20	0.10	0.65		0.02				0.10 B 0.10 C 0.10 Ti 0.10 Zr	active
C90430* Low-Lead Tin Bronze	86.0⁽⁶⁾	89.0		0.09	7.5	8.5	1.0	5.0		0.40		0.05		1.0						0.20	0.10	0.65	0.10	1.5				0.10 B 0.10 C 0.10 Ti 0.10 Zr	active
C90500 Gun Metal	86.0	89.0⁽⁷⁾⁽¹⁾		0.30	9.0	11.0	1.0	3.0		0.20		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.05		0.20		0.005			active
C90700 Tin Bronze, 65	88.0	90.0⁽²⁾⁽¹⁾		0.50	10.0	12.0		0.50		0.15		0.30⁽³⁾		0.50⁽⁴⁾		0.005						0.05		0.20		0.005			active
C90710		Rem⁽¹⁾⁽²⁾		0.25	10.0	12.0		0.05		0.10	0.05⁽³⁾	1.2		0.10⁽⁴⁾		0.005						0.05		0.20		0.005			active
C90800 Tin Bronze	85.0	89.0⁽²⁾⁽¹⁾		0.25	11.0	13.0		0.25		0.15		0.30⁽³⁾		0.50⁽⁴⁾		0.005						0.05		0.20		0.005			active
C90810		Rem⁽²⁾⁽¹⁾		0.25	11.0	13.0		0.30		0.15	0.15	0.8⁽³⁾		0.50⁽⁴⁾		0.005						0.05		0.20		0.005			active
C90900	86.0⁽¹⁾⁽²⁾	89.0		0.25	12.0	14.0		0.25		0.15		0.05⁽³⁾		0.50⁽⁴⁾		0.005						0.05		0.20		0.005			active
C91000	84.0⁽²⁾⁽¹⁾	86.0		0.20	14.0	16.0		1.5		0.10		0.05⁽³⁾		0.8⁽⁴⁾		0.005						0.05		0.20		0.005			active
C91100	82.0⁽¹⁾⁽²⁾	85.0		0.25	15.0	17.0		0.25		0.25		1.0⁽³⁾		0.50⁽⁴⁾		0.005						0.05		0.20		0.005			active
C91300	79.0⁽²⁾⁽¹⁾	82.0		0.25	18.0	20.0		0.25		0.25		1.0⁽³⁾		0.50⁽⁴⁾		0.005						0.05		0.20		0.005			active
C91500 Copper Tin Alloy		Rem	2.0	3.2	9.0	11.0						0.50	2.8	4.0															inactive 01/73
C91600	86.0	89.0⁽²⁾⁽¹⁾		0.25	9.7	10.8		0.25		0.20		0.30⁽³⁾	1.2	2.0⁽⁴⁾		0.005						0.05		0.20		0.005			active
C91700 Nickel Gear Bronze	84.0⁽²⁾⁽¹⁾	87.0		0.25	11.3	12.5		0.25		0.20		0.30⁽³⁾	1.2⁽⁴⁾	2.0		0.005						0.05		0.20		0.005			active
C92200 Navy M Bronze	86.0⁽¹⁾⁽⁶⁾	90.0	1.0	2.0	5.5	6.5	3.0	5.0		0.25		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92210	86.0	89.0⁽¹⁾⁽⁶⁾	1.7	2.5	4.5	5.5	3.0	4.5		0.25		0.03⁽³⁾	0.7	1.0⁽⁴⁾		0.005						0.05		0.20		0.005			active
C92220⁽⁶⁾	86.0⁽¹⁾	88.0	1.5	2.5	5.0	6.0	3.0	5.5		0.25		0.05⁽³⁾	0.50⁽⁴⁾	1.0															active
C92300 Leaded Tin Bronze	85.0⁽⁶⁾⁽¹⁾	89.0	0.30	1.0	7.5	9.0	2.5	5.0		0.25		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92310		Rem⁽⁶⁾⁽¹⁾	0.30	1.5	7.5	8.5	3.5	4.5						1.0⁽⁴⁾		0.005				0.03						0.005			active
C92400	86.0⁽¹⁾⁽⁶⁾	89.0	1.0	2.5	9.0	11.0	1.0	3.0		0.25		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92410		Rem⁽¹⁾⁽⁶⁾	2.5	3.5	6.0	8.0	1.5	3.0		0.20				0.20⁽⁴⁾		0.005				0.05				0.25		0.005			active
C92500	85.0	88.0⁽⁶⁾⁽¹⁾	1.0	1.5	10.0	12.0		0.50		0.30		0.30⁽³⁾	0.8	1.5⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92600⁽⁶⁾	86.0⁽¹⁾	88.5	0.8	1.5	9.3	10.5	1.3	2.5		0.20		0.03⁽³⁾		0.7⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92610		Rem⁽¹⁾⁽⁶⁾	0.30	1.5	9.5	10.5	1.7	2.8		0.15				1.0⁽⁴⁾		0.005				0.03						0.005			active
C92700 Leaded Tin Bronze	86.0	89.0⁽⁶⁾⁽¹⁾	1.0	2.5	9.0	11.0		0.7		0.20		0.25⁽³⁾		1.0⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92710		Rem⁽⁶⁾⁽¹⁾	4.0	6.0	9.0	11.0		1.0		0.20		0.10⁽³⁾		2.0⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92800	78.0⁽⁶⁾⁽¹⁾	82.0	4.0	6.0	15.0	17.0		0.8		0.20		0.05⁽³⁾		0.8⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92810	78.0	82.0⁽¹⁾⁽⁶⁾	4.0	6.0	12.0	14.0		0.50		0.50		0.05⁽³⁾	0.8	1.2⁽⁴⁾		0.005						0.05		0.25		0.005			active
C92900	82.0	86.0⁽⁶⁾⁽¹⁾	2.0	3.2	9.0	11.0		0.25		0.20		0.50⁽³⁾	2.8	4.0⁽⁴⁾		0.005						0.05		0.25		0.005			active
C93100		Rem⁽⁸⁾⁽¹⁾	2.0	5.0	6.5	8.5		2.0		0.25		0.30⁽³⁾		1.0⁽⁴⁾		0.005						0.05		0.25		0.005			active
C93200	81.0	85.0⁽⁸⁾⁽¹⁾	6.0	8.0	6.3	7.5	1.0	4.0		0.20		0.15⁽³⁾		1.0⁽⁴⁾		0.005						0.08		0.35		0.005			active
C93400	82.0⁽¹⁾⁽⁸⁾	85.0	7.0	9.0	7.0	9.0		0.8		0.20		0.50⁽³⁾		1.0⁽⁴⁾		0.005						0.08		0.50		0.005			active
C93500	83.0⁽¹⁾⁽⁸⁾	86.0	8.0	10.0	4.3	6.0		2.0		0.20		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.08		0.30		0.005			active
C93600	79.0	83.0⁽⁶⁾	11.0	13.0	6.0	8.0		1.0		0.20		0.15⁽³⁾		1.0⁽⁴⁾		0.005						0.08		0.55		0.005			active
C93700 Bearing Bronze	78.0⁽⁸⁾	82.0	8.0	11.0	9.0	11.0		0.8		0.7⁽⁹⁾		0.10⁽³⁾		0.50⁽⁴⁾		0.005						0.08		0.50		0.005			active
C93720	83.0⁽⁸⁾		7.0	9.0	3.5	4.5		4.0		0.7		0.10⁽³⁾		0.50⁽⁴⁾										0.50					active
C93800 Anti-acid Metal	75.0⁽⁸⁾	79.0	13.0	16.0	6.3	7.5		0.8		0.15		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.08		0.8		0.005			active
C93900 79-6-15	76.5	79.5⁽¹⁰⁾	14.0	18.0	5.0	7.0		1.5		0.40		1.5⁽³⁾		0.8⁽⁴⁾		0.005						0.08		0.50		0.005			active
C94000	69.0	72.0⁽¹¹⁾	14.0	16.0	12.0	14.0		0.50		0.25		0.05⁽³⁾	0.50	1.0⁽⁴⁾		0.005						0.08⁽¹²⁾		0.50		0.005			active
C94100	72.0⁽¹¹⁾	79.0	18.0	22.0	4.5	6.5		1.0		0.25		0.50⁽³⁾		1.0⁽⁴⁾		0.005						0.08⁽¹²⁾		0.8		0.005			active
C94200 Cast High-Leaded Tin Bronze	68.5	75.5	3.0	4.0	3.0	4.0		3.0		0.35				0.50										0.50					inactive 03/92
C94300 Soft Bronze	67.0	72.0⁽⁸⁾	23.0	27.0	4.5	6.0		0.8		0.15		0.08⁽³⁾		1.0⁽⁴⁾		0.005						0.08⁽¹²⁾		0.8		0.005			active
C94310		Rem⁽⁸⁾	27.0	34.0	1.5	3.0		0.50		0.50		0.05⁽³⁾	0.25⁽⁴⁾	1.0										0.50					active
C94320		Rem⁽⁸⁾	24.0	32.0	4.0	7.0				0.35																			active
C94330	68.5⁽⁸⁾	75.5	21.0	25.0	3.0	4.0		3.0		0.7		0.10⁽³⁾		0.50⁽⁴⁾										0.50					active
C94400		Rem⁽⁸⁾	9.0	12.0	7.0	9.0		0.8		0.15		0.50⁽³⁾		1.0⁽⁴⁾		0.005						0.08		0.8		0.005			active
C94500		Rem⁽⁸⁾	16.0	22.0	6.0	8.0		1.2		0.15		0.05⁽³⁾		1.0⁽⁴⁾		0.005						0.08		0.8		0.005			active
C94700* Cast Nickel-Tin Bronze	85.0	90.0⁽¹¹⁾		0.09⁽¹³⁾	4.5	6.0	1.0	2.5		0.25		0.05	4.5⁽⁴⁾	6.0		0.005				0.20		0.05		0.15		0.005			active
C94800	84.0⁽¹¹⁾	89.0	0.30	1.0	4.5	6.0	1.0	2.5		0.25		0.05	4.5	6.0⁽⁴⁾		0.005				0.20		0.05		0.15		0.005			active
C94900	79.0⁽²⁾	81.0	4.0	6.0	4.0	6.0	4.0	6.0		0.30		0.05	4.0	6.0⁽⁴⁾		0.005				0.10		0.08		0.25		0.005			active
C95200*	86.0⁽⁸⁾								2.5	4.0					8.5	9.5													active
C95210*	86.0⁽⁸⁾			0.05		0.10		0.50	2.5	4.0				1.0⁽⁴⁾	8.5	9.5		0.05		1.0						0.25			active
C95220*		Rem⁽⁵⁾							2.5	4.0				2.5⁽⁴⁾	9.5	10.5				0.50									active
C95300*	86.0⁽⁸⁾								0.8	1.5					9.0	11.0													active
C95400*	83.0⁽⁵⁾								3.0	5.0				1.5⁽⁴⁾	10.0	11.5				0.50									active
C95410*	83.0⁽⁵⁾								3.0	5.0			1.5	2.5⁽⁴⁾	10.0	11.5				0.50									active
C95420*	83.5⁽⁵⁾								3.0	4.3				0.50⁽⁴⁾	10.5	12.0				0.50									active
C95430* Copper Aluminum Iron Alloy		Rem												0.50	10.5	12.0				0.50									inactive 03/92
C95500*	78.0⁽⁵⁾								3.0	5.0			3.0	5.5⁽⁴⁾	10.0	11.5				3.5									active
C95510*	78.0⁽¹⁴⁾					0.20		0.30	2.0	3.5			4.5	5.5⁽⁴⁾	9.7	10.9				1.5									active
C95520*	74.5⁽⁵⁾			0.03		0.25		0.30	4.0	5.5			4.2	6.0⁽⁴⁾	10.5	11.5				1.5						0.15		0.20 Co 0.05 Cr	active
C95600*	88.0⁽⁸⁾													0.25⁽⁴⁾	6.0	8.0									1.8	3.2			active
C95700*	71.0⁽⁵⁾								2.0	4.0			1.5⁽⁴⁾	3.0	7.0	8.5			11.0	14.0						0.10			active
C95710*	71.0⁽⁵⁾			0.05		1.0		0.50	2.0	4.0		0.05	1.5⁽⁴⁾	3.0	7.0	8.5			11.0	14.0						0.15			active
C95720* Copper Aluminum Iron Alloy	73.0⁽⁵⁾			0.03		0.10		0.10	1.5	3.5			3.0⁽⁴⁾	6.0	6.0	8.0			12.0	15.0						0.10		0.09 Cr	active
C95800*	79.0⁽⁵⁾			0.03					3.5⁽¹⁵⁾	4.5			4.0	5.0⁽¹⁵⁾	8.5	9.5			0.8	1.5						0.10			active
C95810* Cast Aluminum Bronze	79.0⁽⁵⁾			0.09				0.50	3.5⁽¹⁵⁾	4.5			4.0⁽¹⁵⁾	5.0	8.5	9.5		0.05	0.8	1.5						0.10			active
C95815	76.0	82.5⁽⁵⁾		0.03		0.10		0.40	4.0	5.5			4.0	5.3	8.8	10.0		0.05		2.5						0.10		0.05 Cr 0.01 Bi	active
C95820*	77.5⁽¹⁶⁾			0.02		0.20		0.20	4.0	5.0			4.5	5.8⁽⁴⁾	9.0	10.0				1.5						0.10			active
C95900*		Rem⁽⁵⁾							3.0	5.0				0.50⁽⁴⁾	12.0	13.5				1.5									active
* = are alloys registered with the U.S. EPA as Antimicrobial.
(1) = In determining Cu min., Cu may be calculated as Cu + Ni.
(2) = Cu + Sum of Named Elements 99.4% min.
(3) = For continuous castings P shall be 1.5% max.
(4) = Ni value includes Co.
(5) = Cu + Sum of Named Elements 99.5% min.
(6) = Cu + Sum of Named Elements 99.3% min.
(7) = Cu + Sum of Named Elements 99.7% min.
(8) = Cu + Sum of Named Elements 99.0% min.
(9) = Fe shall be 0.35% max. when used for steel-backed bearings
(10) = Cu + Sum of Named Elements 98.9% min.
(11) = Cu + Sum of Named Elements 98.7% min.
(12) = For continuous castings S shall be 0.25% max.
(13) = The mechanical properties of C94700 (heat treated) may not be attainable if the Pb content exceeds 0.01%.
(14) = Cu + Sum of Named Elements 99.8% min.
(15) = Fe content shall not exceed Ni content.
(16) = Cu + Sum of Named Elements 99.2% min.