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Alloy 7075 is Ioduced by Alcoa in 1943, alloy 7075 has been the standard workhorse 7XXX series alloy within the aerospace industry ever since. It was the first successful Al-Zn-Mg-Cu high strength alloy using the beneficial effects of the alloying addition of chromium to develop good stress-corrosion cracking resistance in sheet products. Although other 7XXX alloys have since been developed with improved specific properties, alloy 7075 remains the baseline with a good balance of properties required for aerospace applications.

7075ºÏ½ð±¡°åºÍÖкñ°å²úÆ·Ó¦Óñ鼰º½¿Õº½Ìì½á¹¹µ±ÖУ¬ÆäÖУ¬ÊÊÖеÄÈÍÐԺ͸¯Ê´ÐԵĸßÇ¿¶È½áºÏÊDzÄÁÏËù±ØÐë¾ßÓеġ£

Alloy 7075 sheet and plate products have application throughout aircraft and aerospace structures where a combination of high strength with moderate toughness and corrosion resistance are required.

Si	0.40	Zn . . .	5.1-6.1
Fe . . .	0.50	Ti . . .	0.20
Cu . . .	1.2-2.0	Others, each . . .	0.5
Mn . . .	0.30	Others, total . . .	0.15
Mg . . .	2.1-2.9	Balance, Aluminum
Cr . . .	0.18-0.28

Note: Value maximum if range not shown

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Temper	Thickness in.(mm)	TENSILESTRENGTH Ksi£¨Mpa£©	YIEID STRENGTH Ksi£¨Mpa£©	ELONGATION %
0	0.015-2.00	40 (max)	21 (max)	9-10
Sheet & plate T6	(0.38-50.80) 0.008-0.249	(276) 74-78	(145) 63-69	5-8
Sheet T651	(0.203-6.32) 0.250-4.000	(510-538) 78-67	(434-476) 67-54	9-3
Plate T76	(6.35-101.60) 0.125-0.249	(538-462) 73	(462-372) 62	8
Sheet T7651	(3.18-6.32) 0.250-1.000	(503) 72-71	(427) 61-60	8-6
Plate T73	(6.35-25.40) 0.040-0.249	(496-490) 67	(421-414) 56	8
Sheet T7351	(1.02-6.32) 0.250-4.000	(462) 69-61	(386) 57-48	7-6
Plate	(6.35-101.60)	(476-421)	(393-331)

7075ËùÓеÄÖµ¶¼ÊǵĺáÏò»úеÐÔÄܳý·ÇÁíÓÐ˵Ã÷£¨ALLOY 7075 All values are minimum long transverse mechanical properties except where noted£©
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7075

T651 T7351

26 (28.6) 30 (32.0)

22(24.2) 26 (28.6)

PLATE

Temper T651 T7651 Specification MIL-HDBK-5 Approved

BARE SHEET ALCLAD SHEET

Specification ,24 ,25,26 MIL-HDBK-5 Approved Approved

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