7049 알루미늄 합금

What Is 7049 Aluminum?

7049 aluminum is a high-strength 7xxx series alloy with high zinc and copper content, formulated primarily as a forging grade. It offers excellent resistance to stress-corrosion cracking and good machinability, which makes it a frequent choice for critical structural forgings in aerospace and missile applications. It is generally considered non-weldable and is best supplied as forged or machined parts. Linsy supplies 7049 in plate, bar, and forging stock with mill test certificates on every order.

Available 7049 Aluminum Products

플레이트

Available tempers: F, O, T6, T651, T7451, H112

성질	두께(mm)	너비(mm)	길이(mm)
F, O, T6, T651, T7451, H112	0.5 – 200	500 – 2600	500 – 16000 (cut-to-length)

Bar / Rod

Available tempers: T73, T352

성질	지름(mm)	길이(mm)
T73, T352	3 – 300	500 – 12000

Forging stock

Available tempers: T73, T352

성질	Available forms	Note
T73, T352	Bloom, billet, disc	Custom forging on request

규격 및 등가 지정

7049 aluminum (EN AW-7049, AlZn8MgCu) 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), and ASTM B313 (welded tube). Forging stock follows ASTM B247. Always confirm the exact specification and temper with our team for your order.

화학 성분

요소	백분율(%)
Si	0.40 최대
Fe	0.35 최대
Cu	1.2 – 1.9
Mn	0.20 최대
Mg	2.1 - 2.9
Cr	0.10 – 0.22
Zn	7.6 - 8.4
Ti	최대 0.10
Zr	최대 0.25
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)
T73	483 – 517*	414 – 448*	7 – 12*	150 – 340*
T352	483 – 517*	414 – 448*	7 – 12*	150 – 340*

Values are typical for the indicated condition. An em dash (—) means the value was not available in the source data; confirm with the mill certificate. Asterisked values are estimates pending verification — see the audit report.

템퍼 선택 가이드

• O — Annealed, softest condition.
• T6 / T651 — Peak-aged; highest strength, lower corrosion resistance.
• T73 / T7451 — Overaged for maximum stress-corrosion resistance; preferred for critical aerospace forgings.
• T352 — Solution heat-treated and retrofit aged for forgings.

주요 특징

매우 높은 강도

Among the strongest 7xxx forging alloys.

Excellent stress-corrosion resistance (overaged)

T73 / T7451 tempers resist cracking in aggressive environments.

우수한 가공성

Cuts cleanly on CNC equipment.

Generally non-weldable

Design as forged or machined parts; welding is not recommended.

애플리케이션

• Aerospace and missile structural forgings
• Landing-gear and high-load components
• Defense and ordnance parts
• High-strength machined blocks
• Critical fatigue-rated structures

가공 및 표면 마감 참고 사항

Linsy supplies 7049 as plate, bar, and forging stock, then CNC-machines and laser-cuts to print. It is not recommended for welding. For corrosion protection, anodizing or painting is advised, and the T73 / T7451 tempers should be specified where stress-corrosion resistance is critical.

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 7049 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 and welding 7000-series alloys. (Internal links to be connected to published Linsy blog articles.)

7049 Aluminum FAQ

Is 7049 weldable?

No, 7049 is generally considered non-weldable and is supplied as forged or machined components.

Which temper resists stress corrosion best?

The overaged T73 and T7451 tempers give the best resistance to stress-corrosion cracking; use them for critical aerospace structures.

Why are some mechanical values marked with an asterisk?

The source mechanical data for 7049 was partially corrupted. Values shown are typical and must be verified against the mill certificate before release.

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.

견적을 어떻게 요청합니까?

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