ALLOY 3003

Alternative Designations : AS 3003: DIN AIMnCu: EN AW-3003; JIS A3003P; NF A3003 (formerly A-MI)

Note : Profiles products are routinely produced to AA specifications, but other National Standards may be met on request.

Chemical Composition :

Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Others		Al
Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Each	Total	Al
0.6	0.7	0.05 – 0.20	1.00 – 1.50	–	–	0.1	–	0.05	0.15	Reminder

(% max except where a range is given)

Characteristics :

Corrosion Resistance	Very Good
Anodising	Poor
Formability	Very Good
Machinability	Poor
Weldability	Very good
Brazcability	Excellent

Typical Uses : General sheet metal work requiring greater strength than is provided by 1000 series alloys; profiled building sheet (roofing and siding), insulation panels; holloware, food and chemical handling and storage equipment.

Note : Special grades are available for porcelain enameling, deep drawing and spinning, general purpose grades should not be used for these operations. 3003 is not recommended for decorative or architectural anodizing.

Note : H2-temper designations indicate that a different process has been used to achieve mechanical characteristic similar to those of the corresponding HI tempers, However, property limits of H2-tempers differ from the above in that the Maximum Tensile Strength and Minimum Yield Strength provisions do now apply. Where required, material supplied in H2-tempers can be produced to meet the mechanical property limits of the equivalent H1-tempers.

Modulus of Elasticity : 69,000 Mpa

Physical Properties (To AA Standards)

Standard	Temper	Thickness (mm)		UTS (N/mm²)		Yeild (N/mm²)	Elongation in 50mm (%)	Bend Radius
Standard	Temper	Over	Up to	Min	Max	Min	Min	180^o
ASTM B209M	“O”	0.32	0.63	95	130	35	20	0t
		0.63	1.20	95	130	35	22	0t
		1.20	6.30	95	130	35	25	0t
BS EN 485-2		0.20	0.50	95	135	35	15	0t
		0.50	1.50	95	135	35	17	0t
		1.50	3.00	95	135	35	20	0t
		3.00	6.00	95	135	35	23	1.0t
ASTM B209M	H12	0.40	0.63	120	160	85	3	0t
		0.63	1.20	120	160	85	4	0t
		1.20	6.30	120	160	90	6	0t
BS EN 485-2		0.20	0.50	120	160	90	3	1.5t
		0.50	1.50	120	160	90	4	1.5t
		1.50	3.00	120	160	90	6	–
		3.00	3.00	120	160	90	6	–
ASTM B209M	H14	0.32	0.63	140	180	115	2	0t
		0.63	1.20	140	180	115	3	0t
		1.20	3.20	140	180	115	5	0t
		3.20	6.30	140	180	115	5	2t
BS EN 485-2		0.20	0.50	145	185	125	2	2.0t
		0.50	1.50	145	185	125	2	2.0t
		1.50	3.00	145	185	125	3	2.0t
		3.00	6.00	145	185	125	4	–
ASTM B209M	H16	0.32	0.63	165	205	145	2	4t
		0.63	1.20	165	205	145	3	4t
		1.20	4.00	165	205	145	4	6t
BS EN 485-2		0.20	0.50	170	210	150	1	2.5t
		0.50	1.50	170	210	150	2	2.5t
		1.50	4.00	170	210	150	2	2.5t
ASTM B209M	H18	0.32	0.63	185	–	165	1	–
		0.63	1.20	185	–	165	2	–
		1.20	3.20	185	–	165	4	–
BS EN 485-2		0.20	0.50	190	–	170	1	–
		0.50	1.50	190	–	170	2	–
		1.50	3.00	190	–	170	2	–

Welding : 3003 is readily welded by the TIG and MIG processes. Commonly used filler alloys are 4043 and 1100. 4043 gives a greater weld strength, but if the assembly is to be anodized, 1100 filler metal will give a closer color match.

3003 may also be gas welded or resistance welded, but the resulting joints are not as strong or as corrosion resistant as the inert gas welded joints. Moreover, gas welding could result in excessive heat distortion and, in thinner gauges, may burn through. It is essential that all traces of flux used in welding or brazing are removed by scrubbing with hot water upon completion.

Annealing : 415°C ± 5°C, until all parts have reached the annealing temperature.

Weight Calculation : Weight per square meter in kilogrammes: 2.73 x thickness in mm.