7050 알루미늄 합금

What Is 7050 Aluminum?

7050 aluminum is a high-strength 7xxx series alloy built around zinc, magnesium, and copper, with zirconium for grain control. It is closely related to 7075 but performs better in thick sections because it is less sensitive to quench rate, so strength is retained deeper into the plate. The T7451 temper gives strong resistance to exfoliation and stress-corrosion cracking, which is why 7050 is a workhorse for aerospace structures such as bulkheads, fuselage frames, and wing skins. Linsy supplies 7050 in plate, tube, and bar with mill test certificates on every order.

Available 7050 Aluminum Products

플레이트

Available tempers: T73510, T73511, T74, T7451, T7452

성질	두께(mm)	너비(mm)	길이(mm)
T73510, T73511, T74, T7451, T7452	0.5 – 200	500 – 2600	500 – 16000 (cut-to-length)

튜브

Available tempers: T73510, T73511, T7451, T7452

성질	외경(mm)	벽 두께 (mm)	길이(mm)
T73510, T73511, T7451, T7452	6 – 300	0.5 – 40	500 – 12000

Bar / Rod

Available tempers: T73510, T73511, T7451, T7452

성질	지름(mm)	길이(mm)
T73510, T73511, T7451, T7452	3 – 300	500 – 12000

규격 및 등가 지정

7050 aluminum (EN AW-7050, AlZn6CuMgZr) is supplied to common wrought-alloy specifications. Typical standards by form: ASTM B209 (sheet and plate), ASTM B221 (extruded tube, bar, and profiles), ASTM B211 (bar and rod), ASTM B247 (forging stock), and ASTM B313 (welded tube). Always confirm the exact specification and temper with our team for your order.

화학 성분

요소	백분율(%)
Si	최대 0.12
Fe	최대 0.15
Cu	2.0 - 2.6
Mn	최대 0.10
Mg	1.9 – 2.6
Cr	최대 0.04
Zn	5.6 – 6.7
Ti	최대 0.06
Zr	0.08 – 0.15
기타(각)	0.05
기타(합계)	0.15
Al	잔액

열처리 상태에 따른 기계적 특성

성질	인장 강도(MPa)	항복 강도(MPa)	연신율 (%)	전단 강도(MPa)
T7451	490 – 570	390 – 500	3.8 – 5.9	290 – 330
T73510 / T73511	490 – 570	390 – 500	3.8 – 5.9	290 – 330

Values are typical for the overaged T7451 / T7351x tempers; confirm exact figures with the mill certificate.

템퍼 선택 가이드

• T7451 / T74 — Overaged plate; best exfoliation and stress-corrosion resistance. Primary aerospace temper.
• T73510 / T73511 — Overaged extruded tube and bar with the same corrosion advantage.
• T7452 — Stress-relieved die forging stock for machined aerospace parts.

주요 특징

Strength retained in thick sections

Less quench-sensitive than 7075, so plate stays strong through its depth.

Excellent stress-corrosion resistance

Overaged tempers resist cracking in aggressive service.

열처리 가능

Precipitation hardening delivers the specified strength.

Poor weldability

Generally supplied as a machined or formed part, not a welded assembly.

애플리케이션

• Aircraft bulkheads and fuselage frames
• Wing skins and spars
• Structural forgings
• Defense and space structures
• Heavy-duty machined components

가공 및 표면 마감 참고 사항

Linsy CNC-machines and laser-cuts 7050, then anodizes or paints for corrosion protection. Welding is not recommended; design parts as machined or formed components.

품질 문서 및 검사

Linsy is a Shenzhen-based aluminum supplier with more than 20 years of experience. Our quality system is certified to ISO 9001, ISO 14001, and ISO 45001. Every order ships with a mill test certificate (MTC). SGS third-party test reports are available on request. Typical custom lead time is 10–60 days depending on temper, size, and quantity.

Why Choose Linsy for 7050 Aluminum

• Shenzhen factory with 20+ years serving aerospace, automotive, and general engineering buyers
• Wide form range: sheet, plate, coil, tube, bar, wire, profile, and forging stock
• CNC machining, laser cutting, TIG/MIG welding, and anodizing / polishing / powder coating under one roof
• Mill test certificate with every order; SGS reports on request
• ISO 9001 / ISO 14001 / ISO 45001 certified operations

관련 자료

For deeper reading on 7xxx selection and fabrication, see our guides on aluminum alloy selection, welding 7000-series alloys, and aircraft-grade tempers. (Internal links to be connected to published Linsy blog articles.)

7050 Aluminum FAQ

How is 7050 different from 7075?

7050 is less sensitive to quench rate, so it keeps strength better in thick plate, and its overaged tempers resist stress corrosion far better than 7075-T6.

Which temper should I use?

T7451 is the standard for aerospace plate where corrosion resistance matters; T73510/T73511 for extruded sections.

Is 7050 weldable?

No, it is not a welding grade. Plan for machined or bonded assemblies.

What documents come with the order?

Every order ships with an MTC, and SGS third-party test reports are available on request.

주문 관련 일반적인 자주 묻는 질문

일반적인 리드 타임은 얼마인가요?

Custom aluminum orders typically ship in 10–60 days depending on alloy, temper, size, and quantity. Stock or standard sizes may be faster — ask our team.

Can I get a mill test certificate?

Yes. Every order includes an MTC. SGS third-party test reports are available on request.

Do you offer machining and finishing?

Yes. We provide CNC machining, laser cutting, welding, anodizing, polishing, and powder coating so parts can be delivered closer to finished form.

How do I request a quote?

Send your alloy, temper, dimensions, quantity, and required standard. Our team will confirm availability, lead time, and pricing.