Aluminium 7050 Sheet Plate | AMS 4050 | UNS A97050 | DIN 3.4144

Aluminum 7050 Sheets, Aluminum 7050 Hot Rolled Plate, AISI 7050 Sheets, Aluminum Alloy 7050 Cold Rolled Sheet Manufacturer in Mumbai, India.

PM Industries manufactures, supplies, and stocks AMS 4050 Aluminium 7050 Sheet Plate (UNS A97050) in a range of thicknesses and sizes. AMS 4050 is the primary aerospace plate specification for Aluminium 7050, covering thick plate in T7451 temper to full aerospace mechanical property requirements including minimum values at multiple locations through the plate thickness. Aluminium 7050 is a zinc-copper-magnesium alloy with a zirconium addition that replaces the chromium used in 7075 as a recrystallization inhibitor. That zirconium addition is what gives 7050 its superior through-thickness mechanical property consistency in thick plate, which is the specific performance limitation that 7075 shows in sections above approximately 75mm thick.

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The development of 7050 addressed a practical structural design problem. Aircraft fuselage frames, wing spars, and bulkhead plate in wide-body commercial aircraft require plate thicknesses that were at the time beyond 7075's capability to deliver consistent strength and toughness properties throughout the cross-section. 7050's composition was optimized to provide reliable properties through thick sections, making it the standard specification for thick aerospace structural plate where 7075 is inadequate.

Through-thickness property consistency is 7050's defining technical advantage over 7075 in thick plate. In 7075 plate above approximately 75mm thickness, the center of the plate shows lower strength and toughness than the surface because the chromium-based grain structure control is less effective at the center of thick sections during quenching. 7050's zirconium addition provides more effective recrystallization control throughout the thickness of even very thick plate sections, delivering more uniform grain structure and more consistent mechanical properties from surface to center. For aircraft structural plate where the design stress calculation must be based on the minimum properties anywhere in the plate cross-section, that consistency allows a higher design stress to be used, reducing plate thickness and weight.

T7451 temper provides the over-aged condition required for acceptable stress corrosion cracking resistance in structural service. Like other high-strength 7xxx alloys, 7050 in peak-aged T6 temper is susceptible to SCC in the short transverse direction under sustained tensile stress. The T7451 over-aging treatment reduces SCC susceptibility to acceptable levels for structural service while retaining the majority of the peak strength. The T7451 designation also specifies stress relief by stretching, which reduces residual stress in the plate and improves dimensional stability during machining.

Machinability is good for a high-strength aluminium alloy in the T7451 condition. Aerospace structural components machined from 7050 plate include fuselage frames, bulkheads, wing spars, and machined structural fittings where large volumes of material are removed to produce the final component geometry. The reduced residual stress of the T7451 temper improves dimensional stability during heavy machining operations, which is a practical production advantage for large precision machined structural components.

Plate is available in T7451 temper across a range of thicknesses and sizes with full material certification to AMS 4050 and applicable specifications including ASTM B209. Contact PM Industries for thickness, width, length, quantity, and pricing.

Specification Aluminium 7050 Sheet & Plate | AMS 4050 | UNS A97050 | DIN 3.4144

Specifications	ASME SA 240/ASTM A 240
Standard Sizes	1000 x 2000 mm, 1220 x 2440 mm, 1500 x 3000 mm, 2000 x 2000 mm, 2000 x 4000 mm
Width	10-2500mm
Length	2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface	2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hairline, sand, blast, Brush, etching, etc
Thickness	0.1mm to 100 mm Thk
Hardness	Quarter Hard, Half Hard,Spring Hard, Soft, Hard
Stock available in form of	Shim Sheet, Rolls, Strip, Flats, Clad Plate, Plain Sheet, Plate, Sheet, Coils, Foils, Rolling Sheet, Rolling Plate, Flat Shim, Flat Sheet, Blank (Circle), soft annealed, sheared, annealed, tread plate,descaled, Checker Plate
Profiling	Plasma Plate Cutting
Value added services	Plasma cutting, Waterjet cutting, Laser cutting, welding, edge preparation, etc.
Test Certificates	EN 10204/3.1B, NACE MR0103, NACE MR0175
	Raw Materials Certificate
	100% Radiography Test Report
	Third Party Inspection Report, etc

Available Types of Aluminium 7050 Sheet & Plate

Aluminum 7050 Sheets & Plates – Equivalent Grades

UNS	DIN,WNr	EN	ISO
A97050	3.4144	EN3982	AlZn6CuMgZr

Aluminum 7050 Sheet & Plate – Chemical Composition

Weight %	Zn	Cu	Mg	Zr	Fe	Si	Mn	Ti	Cr	Others(total)
Minimum	5.7	2.0	1.9	0.08	–	–	–	–	–	–
Maximum	6.7	2.6	2.6	0.15	0.15	0.12	0.10	0.06	0.04	0.15

Aluminum 7050 Sheets & Plates – Mechanical Properties

Material	Temper	Tensile Strength (ksi)	Yield Strength (ksi)	Elongation in 2″ %
Aluminium Alloy 7050 Angle (AMS 4340)	T76511	79	69	7
Aluminium Alloy 7050 Angle (AMS 4340)	T73511	70	60	8
Aluminium Alloy 7050 Angle (AMS 4342)	T74511	73	63	7