Specifications Brass ::::

Chemical Composition Of Brasses
Material	Normal Composition	Nearest Relevant Composition Specification
		BS : 2870	ISO	JIS
95/5 Cap Copper	95% Cu, 5% Zn	CZ 125	Cu Zn 5	H 3100 C 2100
90/10 Guilding Metal	90% Cu, 10% Zn	CZ101	Cu Zn 10 426/1	H 3100 C 2200
85/15 Guilding Metal	85% Cu, 15% Zn.	CZ102	Cu Zn 15 426/1	H 3100 C 2300
80/20 Brass	80% Cu, 20% Zn.	CZ103	Cu Zn 20 426/1	H 3100 C 2400
70/30 (Cartridge Brass)	70% Cu, 30% Zn.	CZ106	Cu Zn 30 426/1	H 3100 C 2600
65/35 (2 and 1 Brass)	65% Cu, 35% Zn.	CZ107	Cu Zn 35 426/1	H 3100 C 2680
63/37 (Common Brass)	63% Cu, 37% Zn	CZ108	Cu Zn 37 426/1	H 3100 C 3560
# Material confirming to other National Specification e.g. ASTM, DIN etc. is also provided. # Available in Strips, Sheets, Plates & Circles form.

BRASS AND GUILDING METAL TYPICAL MECHANICAL PROPERTIES AS PER : B.S. : 2870
Material	Temper	Tensile Strength N/mm2	Elongation % on 50 mm G.L.	Vickers Hardness VPN	ISO	JIS
95/5 Cap Copper	'O'			75 Max		H 3100 C 2100
90/10 Guilding Metal	'O' 1/2 H H	245 Min 310 Min 350 Min	35 Min 7 Min 3 Min	75 Max 95 Min 110 Min	Cu Zn 10 ISO : 426/1	H 3100 C 2200
85/15 Guilding Metal	'O' 1/2 H H	245 Min 325 Min 370 Min	35 Min 7 Min 3 Min	75 Max 95 Min 110 Min	Cu Zn 15 ISO : 426/1	H 3100 C 2300
80/20 Brass	'O' 1/2 H H	265 Min 340 Min 400 Min	40 Min 10 Min 5 Min	80 Max 95 Min 120 Min	Cu Zn 20 ISO : 426/1	H 3100 C 2400
70/30 (Cartridge Brass)	'O' 1/4 H 1/2 H H	280 Min 325 Min 350 Min 415 Min	50 Min 35 Min 20 Min 5 Min	80 Max 75 Min 100 Min 125 Min	Cu Zn 30 ISO : 426/1	H 3100 C 2600
65/35 Brass (2 and 1 Brass)	'O' 1/4 H 1/2 H H EH	280 Min 340 Min 385 Min 460 Min 525 Min	45 Min 35 Min 20 Min 5 Min	80 Max 75 Min 110 Min 135 Min 165 Min	Cu Zn 35 ISO : 426/1	H 3100 C 2680
63/37 Brass (Brass Metal)	'O' 1/4 H 1/2 H H EH SH	280 Min 340 Min 385 Min 460 Min 525 Min 660 Min	40 Min 30 Min 15 Min 5 Min - -	80 Max 75 Min 110 Min 135 Min 165 Min 185 Min	Cu Zn 37 ISO : 426/1	JIS 3100 C 3560
'O' : Annealed Condition. 1/4H: Quarter Hard, 1/2H : Half Hard, H: Hard, EH: Extra Hard, SH: Spring Hard.