5A03 Aluminum alloy sheet profile forgings

5A03 aluminium alloy sheet profile forgings is an alloy with moderate Mg content in 5 * * * system, with low strength and high plasticity. Cold deformation can improve its strength, but the plasticity will decrease. In aircraft manufacturing, we need to manufacture welded medium load parts, such as pipes, liquid containers and skeletons, which need high technological plasticity and high corrosion resistance.

The melting temperature of 5A03 is 700~750 ℃, and the casting temperature is 690~730℃. 5A03 alloy has quite high corrosion resistance. The die forging temperature of 5A03 is 420~475℃, and the deformation rate in this temperature range is more than 80%. 5A03 alloy wire does not form weld when it is made of solder, and the strength of the weld can be 90%~95% of the matrix material, and it has high plasticity at the same time. The machinability and grinding performance of the O state material are not good, and the H state material is better.

Calibration mechanical strength of 5A03 aluminum alloy sheet profile forgings
Technical standard	Type	Temper	δ  or d/mm	Tension strength Rm/Mpa	Rp0.2/Mpa	A/%
GB/T 3880	Aluminum sheet	O	0.5~4.5	≤195	≥100	≥16
		H14	>0.5~4.5	≥225	≥195	≥8
		H24
		H34
		H112	>4.5~10.0	≥185	≥80	≥16
			>10.0~12.5	≥175	≥70	≥13
			>12.5~25.0	≥175	≥70	≥13
			>25.0~80.0	≥165	≥60	≥12
GJB 2503	Aluminum sheet	O	0.5~4.0	≤196	≥98	≥15
		H×4	0.5~4.0	≥225	≥196	≥8
GJB 2662	Aluminum plate	H112	7~10	≥186	≥78	≥15
			>10~25	≥176	≥67	≥12
			>25~50	≥167	≥59	≥11
GB/T 3191	Extruded aluminum round bar	H112， O	≤150	≥176	≥78	≥13
GJB 2504	Extruded aluminum round bar		5~250
HB 5202	Extruded aluminum round bar		≤240
GJB 2507	Extruded aluminum round bar	H112， O	All	≥176	≥78	≥12
GB/T 4437	Aluminum pipe	H112	All	≥176	≥69	≥15
GJB 2381		H112， O	OD25~250 Wall thickness 5~35	≤240		－
GJB 2379	Cold drawn aluminum pipe	O	All	≤177	≥78	≥15
		H×4	All	≥215	≥127	≥8
GJB 2351	Free forgings, die forgings	H112	As agreed	≥186	≥78	≥15
HB 5204