Fin stock Specifications|Fin stock Applicable standards and Mechanical properties

Fin stock Specifications:

By meeting stringent specifications of globally competitive companies, Hindalco's flat fin stock has proved its worth in air conditioners, car radiators and heat exchangers. With the help of high-quality ingots, state-of-the-art gauge and shape control and precision slitting, we manufacture fin stock that has tight gauge tolerances and excellent slit edges. A tight build-up combined with internal sound metallurgical properties produce good drawability required for all types of finning;

Dimensions
Parameter	Range	Tolerance
Thickness (mm)	—0.25	+/-0.005 up to 0.12
	Partially annealed: 0.10 — 0.25	+/-0.01 for > 0.12
Width (mm)	100 — 1220	+/-0.5 for 100 — 250
		+/-1 for > 250
Coil I.D (mm)	With core: 70, 76, 150, 203, 300, 508	-
Coil O.D (mm)	300 — 1350 —550	-
Core	Plastic / M.S / AL	-

Flatness

Less than 20 I units (typical)

Fin stock Applicable standards
::	ASTM - B - 209M, Aluminium association — aluminium standards and data, Hindalco manufacturing limits (as applicable)

Fin stock Mechanical properties
Alloy (AA)	Temper	%E (min)	UTS(mpa)
			Min	Max
1050	H19	1	130	-
	H26	4	95	130
1100	O	20	70	110
	H14	3	105	140
	H16	2	125	150
	H22	20	95	130
	H24	8	110	145
	H26	4	130	165
1200	O	20	70	100
	H14	3	105	140
	H16	2	125	150
	H22	20	95	130
	H24	8	110	145
	H26	4	130	165
3003	O	20	95	130
	H14	3	130	180
	H18	2	185	-
8006	H25	8	120	145
	O	25	100	130
8011	O	25	85	115

Fin stock Chemical composition
Alloy (%)	AA1050	AA1100	AA1200	AA3003	AA8006	AA8011
Fe	0.40	0.95	1.00	0.70	1.4 0 — 1.60	0.6 — 1.00
Si	0.25	(Fe + Si)	(Fe + Si)	0.60	0.02	0.5 — 0.90
Mg	0.05	-	-	-	0.02	0.05
Mn	0.05	0.05	0.05	1.0 — 1.50	0.4 — 0.50	0.20
Cu	0.05	0.05 — 0.20	0.05	0.05 — 0.20	0.05	0.10
Zn	0.05	0.10	0.10	0.10	0.05	0.10
Ti	0.03	-	0.05	0.1(Ti+Zr)	0.03	0.08
Cr	-	-	-	-	-	0.05
Each(Others)	0.03	0.05	0.05	0.05	0.05	0.05
Total (Others)	-	0.15	0.125	0.15	0.15	0.15
Al	99.50	99.00	99.00	Remainder	Remainder	Remainder