Alloys

We are currently marketing the following alloys, in line with UK market requirements.
As we develop and manufacture all our own alloys, the complete range of Charles Booth alloys is effectively limitless.

To download a data sheet on a product, please click on the product’s name.

To order any of these products, please call us on 0800 917 7775

	BONDING ALLOYS
	BOCRAFT A	BOCRAFT D	BOCRAFT E	BOCRAFT G	BOCRAFT S	BOCRAFT Y	BOCRAFT R
Type	Ex Hard	Ex Hard	Hard	Hard	Ex Soft	Hard	Universal
Colour	White	White	White	Yellow	Yellow	Yellow	Yellow
Au	*	2.0	54.0	75.0	99.7	88.0	73.5
Pt				3.0		9.5	9.1
Pd	53.5	78.0	31.0	7.6
Ag	35.17			10.8			9.2
Cu		10.5	3.95				4.4
Zn	*		*			*	2.0
Sn	8.5			*			*
Ga		9.47
In	2.0		10.0	2.5	*	1.5	1.6
Other	0.83	0.03	1.05	1.1	0.3	1.0	0.2
Gold + PGM %	53.7	80.0	85.0	85.6	99.7	97.5	82.7
Melting Range °C	1150-1240	1120-1190	1100-1195	1100-1150	1035-1055	1030-1120	910-975
Cast Temp °C	1340	1290	1295	1250	1155	1220	1075
Fired	248	326	274	220	35	170	210
Fired	13	4	22	17	60	17	21
Density g/cm³	10.6	10.7	13.6	16.2	19.2	18.5	16.3
Expansion um/m/°K 25-500°C	14.9	13.9	13.8	14.9	15.4	14.7	16.6
Fired	785	817	713	545	113	516	560
Fired	520	727	555	453	49	420	517
Fired	91	92	88	70	79	68	70

	CASTING ALLOYS
	BOCAST N	CB2	BODENT 60	BODENT 75	BOPAL	BODENT P
Type	III	III	IV	IV	IV	IV
Colour	Yellow	Yellow	Yellow	Yellow	White	White
Au	20.0	40.0	60.0	71.0	3.34
Pt				4.0
Pd	20.0		3.0		30.0	33.34
Ag	40.0	40.0	17.0	12.0	46.69	46.66
Cu		9.7	19.0	12.0	18.97	19.0
Zn	2.0	*	*	*	*	*
In	18.0	9.8
Other		0.5	1.0	1.0	1.0	1.0
Gold + PGM %	40.0	40.0	63.0	75.0	33.34	33.34
Melting Range °C	865-940	680-780	850-880	870-920	970-1080	1000-1035
Cast Temp °C	1040	860	980	1020	1180	1140
Soft	145	100	175	165	178	180
Hard	205	190	280	255	290	285
Soft	14	63	30	55	30	15
Hard	12	21	6	17	3	3
Density g/cm³	10.9	12.0	13.6	15.4	10.7	10.6
Soft	370	367	452	525	570	580
Hard	480	537	775	690	810	790
Soft	248	277	353	350	380	480
Hard	350	468	730	520	760	780

NON PRECIOUS ALLOYS
	VICRON S	COBRAL G	YELLCAST Plus
Type	Hard	Ex Hard	III
Colour	White	White	Yellow
Cr	24.0	21.0
Co		63.3
Ni	61.5		4.5
Mo	10.5	6.5
Mn		*	2.0
Fe	1.5	*	3.0
Si	1.77	*
Ce	*
W		6.0
Nb		1.0
Zn			2.00
Al			7.00
Cu			81.5
Other	0.73	3.2
Gold + PGM %	0.73	3.2
Melting Range °C	1260-1310	1280-1350	970-1025
Cast Temp °C	1410	1450	1125
Fired	185	275	150
Fired	52	18	29
Density g/cm³	8.3	8.4	7.8
Expansion um/m/°K 25-500°C	13.8	14.3
Fired	496	666	290
Fired	290	540
Fired	200	197
Hardness			150
Elongation			29
Density			7.8
Tensile strength			415
0.2% stress			290