6061 Alüminyum Alaşım

6061 aluminum alloy is a precipitation-hardened 6000 series aluminum alloy, primarily alloyed with magnesium and silicon. Known as one of the most versatile general-purpose aluminum grades, 6061 offers an excellent balance of strength, weldability, corrosion resistance, and machinability. Linsy supplies 6061 aluminum sheet, plate, coil, bar, tube, wire, and profiles in tempers O, T4, T6, T651, and T6511, with custom sizes, surface finishing, and MTC reports available.

Available forms: sheet / plate / coil / bar / tube / wire / profile
Common tempers: O / T4 / T6 / T651 / T6511
Processing support: CNC machining / laser cutting / TIG & MIG welding / anodizing / polishing
Quality documents: MTC report with every order, SGS testing on request

What Is 6061 Aluminum Alloy?

6061 aluminum alloy (UNS A96061) is one of the most widely used heat-treatable aluminum alloys. Originally developed in 1935 as “Alloy 61S”, it is a precipitation-hardened grade alloyed primarily with magnesium (Mg) and silicon (Si), which form magnesium silicide (Mg₂Si) during artificial aging. This composition gives 6061 its characteristic combination of moderate-to-high strength, excellent weldability, good corrosion resistance, and outstanding machinability — making it the most common general-purpose aluminum grade in structural engineering, transportation, and precision-machined components.

6061 is the second-most widely extruded aluminum alloy after 6063, and is supplied in nearly every product form — from sheet, plate, and coil to bar, tube, wire, and complex custom profiles. It accepts both cold and hot forming, responds well to anodizing, and is approved under major international standards including ASTM B209, B210, B211, B221, ISO 6361, and EN 573-3.

Available 6061 Aluminum Products

Linsy supplies 6061 aluminum in the full range of standard and custom product forms. Length, width, and dimensional tolerances can be tailored to your project requirements.

6061 Aluminum Sheet & Coil

Form Temper Kalınlık (mm) Genişlik (mm) Uzunluk (mm)
6061 Sheet / Coil F, O, T4, T6, T651, H112 0.3 – 6.0 500 – 2600 Customized

6061 Aluminum Plate

Form Temper Kalınlık (mm) Genişlik (mm) Uzunluk (mm)
6061 Plate F, O, T6, T651, H112 6.0 – 150 500 – 2600 500 – 6000

6061 Alüminyum Çubuk

Form Temper Çap (mm) Uzunluk (mm)
6061 Round Bar F, O, T6, T651, T6511, H112 3 – 300 1000 – 6000

6061 Alüminyum Boru

Form Temper Dış Çap (mm) Wall Thickness (mm) Uzunluk (mm)
6061 Tube (Seamless / Welded) F, O, T4, T6, T651, H112 6 – 300 1 – 50 1000 – 6000

6061 Alüminyum Tel

Parameter Şartname
Çap 0.8 – 30 mm
Temper F, O, T4, T6, H112
Coil Weight Min 50 kg
Boyut Toleransı ± 0,02 mm

Other Forms — Profile & Custom Shapes

6061 is one of the most commonly extruded aluminum alloys and is widely available in custom profile shapes. Linsy supports extrusion-grade 6061 billets and works with downstream partners for structural profiles, angles, channels, and bespoke cross-sections. Common applications include 6061-T6 angles, channels, and I-beams used in structural fabrication.

6061 Specifications & Equivalent Designations

Standard System Designation
UNS A96061
EN AW EN AW-6061 / AlMg1SiCu
ISO Al Mg1SiCu
AA / SAE 6061
JIS (Japan) A6061
GB / Chinese 6061 (LD30)

Common applicable standards:

  • ASTM B209 — Aluminum and aluminum-alloy sheet and plate
  • ASTM B210 — Aluminum and aluminum-alloy drawn seamless tubes
  • ASTM B211 — Aluminum and aluminum-alloy bar, rod, and wire
  • ASTM B221 — Aluminum and aluminum-alloy extruded bars, rods, wire, profiles, and tubes
  • ASTM B308 / B308M — 6061-T6 standard structural profiles
  • ISO 6361 — Wrought aluminum and aluminum alloy sheet, strip, and plate
  • EN 573-3 — Chemical composition and form of wrought products

Chemical Composition of 6061 Aluminum

Typical composition limits (per ASTM / EN standards, weight %):

Element Min % Max %
Magnezyum (Mg) 0.80 1.20
Silisyum (Si) 0.40 0.80
Demir (Fe) 0.70
Bakır (Cu) 0.15 0.40
Krom (Cr) 0.04 0.35
Çinko (Zn) 0.25
Manganez (Mn) 0.15
Titanyum (Ti) 0.15
Others, each 0.05
Others, total 0.15
Alüminyum (Al) Balance (≈ 95.85 – 98.56)

Mechanical Properties by Temper

Properties shown are typical values for 6061 in three common tempers. Specifications from ASTM B221 and equivalent standards govern minimum values.

Mülkiyet O (Tavlanmış) T4 (Solution + Natural Age) T6 / T651 (Solution + Artificial Age)
Çekme Dayanımı ≤ 150 MPa (≤ 22 ksi) ≥ 180 – 210 MPa (26 – 30 ksi) ≥ 290 MPa (≥ 42 ksi), typical 310 MPa
Yield Strength (0.2%) ≤ 83 – 110 MPa (12 – 16 ksi) ≥ 110 MPa (≥ 16 ksi) ≥ 240 MPa (≥ 35 ksi), typical 270 MPa
Kopma Uzaması 10 – 18 % 10 – 16 % 8 – 12 % (depends on thickness)
Kesme Dayanımı ≈ 84 MPa ≈ 110 MPa ≈ 210 MPa
Yorulma Dayanımı ≈ 97 MPa (5×10⁸ cycles)
Elastisite Modülü 69 GPa (10,000 ksi)

Temper Selection Guide for 6061 Aluminum

Choosing the right temper depends on whether you need formability, weldability, maximum strength, or dimensional stability after machining.

Temper İçin En İyisi Notlar
6061-O (Annealed) Deep drawing, complex forming, cold heading Lowest strength, maximum ductility. Softest and most formable condition.
6061-T4 Bent or formed parts that will naturally age Moderate strength. Used for parts that need forming before final aging.
6061-T6 Structural components, general engineering, machined parts Peak strength after artificial aging. Most common temper for finished parts.
6061-T651 Precision-machined parts with tight dimensional tolerance Stress-relieved by stretching after solution treatment. Reduces warping during machining.
6061-T6511 Extruded bar, rod, and profile with dimensional stability Stress-relieved extruded condition. Standard for precision-machined stock.
6061-H112 Products with strain-hardened properties from hot working Used for plate and bar in heavy sections. Strength between O and T6.

Key Characteristics of 6061 Aluminum

Balanced Strength-to-Weight Performance

6061-T6 reaches tensile strength above 290 MPa at a density of 2.70 g/cm³ — roughly one-third the weight of equivalent steel sections. This strength-to-weight advantage is why 6061 dominates bicycle frames, aircraft secondary structures, automotive chassis components, and robotics.

Mükemmel Kaynaklanabilirlik

6061 is one of the most weldable heat-treatable aluminum alloys. Standard TIG (GTAW) and MIG (GMAW) processes work well using 4043 or 5356 filler wire. Note that the weld zone softens to approximately 6061-T4 properties, with a typical strength reduction of about 40%. Designs that must retain full T6 strength across a weld should consider post-weld re-heat treatment or accept a 165 MPa design stress in the heat-affected zone.

İyi Korozyon Direnci

6061 offers good atmospheric and mild-corrosion resistance, and is well-suited for marine, architectural, and outdoor applications. It is not as corrosion-resistant as 5xxx-series alloys in prolonged seawater exposure, so for highly corrosive marine environments, 5083 or 5052 may be preferred.

Outstanding Machinability

6061 produces excellent chip characteristics in T6 and T651 conditions and is rated “Good (A)” on the aluminum machinability scale. T651 is the preferred temper for CNC-machined parts because the stress-relief process minimizes distortion during material removal.

Anodizing & Surface Finishing

6061 accepts standard anodizing (Type II) and hard anodizing (Type III) treatments, although 6063 generally produces a clearer and more uniform decorative anodized finish. Linsy provides in-house anodizing, polishing, powder coating, and PVC protective film options for finished 6061 components.

Common Applications of 6061 Aluminum

6061 is the most widely specified aluminum alloy for general engineering and structural applications:

  • Automotive & transportation: Chassis components, wheels, truck bodies, rail car parts, motorcycle frames
  • Structural & construction: Building facades, frameworks, bridges, scaffolding, ladders, structural angles and channels
  • Industrial equipment: Manifolds, fittings, valves, heat-exchanger frames, robotic arms, automation fixtures
  • Sporting goods: Bicycle frames, fishing reels, climbing equipment, archery risers, baseball bats
  • Pressure vessels & vacuum chambers: Low outgassing, weldable, machinable — ideal for high-vacuum and pressure applications

Processing & Surface Finish Notes for 6061

6061 is among the most processing-friendly aluminum grades, but a few specific notes will help you get the best results:

  • CNC machining: Use T651 for tight-tolerance parts to minimize post-machining distortion. Use sharp carbide tooling with proper coolant to avoid built-up edge.
  • TIG / MIG welding: Specify 4043 filler for crack-sensitive joints, or 5356 for higher as-welded strength. Expect a strength reduction in the HAZ — design accordingly.
  • Laser cutting: Suitable for sheet up to ~6 mm thickness. Thicker plate may require fiber laser with nitrogen assist for clean cuts.
  • Forming: O temper is best for severe forming; T4 for moderate bends; T6 should not be formed after aging.
  • Anodizing: 6061 accepts Type II (decorative) and Type III (hard) anodizing. Surface appearance may show grain contrast; for premium appearance consider 6063.
  • Surface protection: PVC film, paper interleaving, and protective oil are available for shipment.

Quality Documents & Inspection

Quality control at Linsy runs from raw material selection through finished product inspection. Every order is supplied with an MTC (Material Test Certificate) issued under Linsy Aluminum after production, including chemical composition and mechanical property results for the actual lot.

For customers who require third-party verification, SGS test reports are available on request at an additional testing cost. Available SGS reports include:

  • SGS Chemical Composition Report
  • SGS Mechanical Properties Report
  • SGS Ultrasonic Test Report (for thick plates)
  • SGS RoHS + REACH Report
  • SGS Dimensional Inspection Report

Why Choose Linsy for 6061 Aluminum

Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience, supplying 6061 and other 1000–8000 series alloys to customers across general engineering, automotive, marine, shipbuilding, construction, manufacturing, and power electronics.

For your 6061 sourcing, this means:

  • Broad inventory coverage across sheet, plate, coil, bar, tube, wire, profile, and custom sizes
  • Flexible order support — both standard and mixed-spec orders, including harder-to-find grades
  • Low-MOQ custom production for non-stock sizes, with typical custom lead time of 10–60 days
  • In-house processing and surface treatment — CNC machining, laser cutting, TIG/MIG welding, anodizing, polishing, powder coating, and PVC film
  • MTC with every order, plus optional SGS testing on request
  • Management system aligned with ISO 9001, ISO 14001, and ISO 45001 standards

Related Resources

Use these guides to make the right 6061 decision for your application:

6061 Aluminum FAQ

What is 6061 aluminum mainly alloyed with?

6061 is alloyed primarily with magnesium (0.8–1.2%) and silicon (0.4–0.8%), which combine during heat treatment to form Mg₂Si precipitates. Smaller amounts of iron, copper, chromium, zinc, manganese, and titanium provide additional grain control and strengthening effects.

Is 6061 weldable?

Yes, 6061 is one of the most weldable heat-treatable aluminum alloys. Use 4043 or 5356 filler wire and standard TIG or MIG processes. Be aware that the weld heat-affected zone softens to approximately T4 strength — about 40% lower than the parent T6 material.

What is the difference between 6061-T6 and 6061-T651?

T6 is the standard solution heat-treated and artificially aged condition. T651 adds a stress-relief step (stretching the material after quenching) to reduce residual stress. For precision CNC machining where flatness and dimensional stability matter, T651 is the preferred choice.

What is the difference between 6061 and 6063?

6061 is stronger and more suited for structural and load-bearing applications, while 6063 has slightly better formability, surface finish, and anodizing response. 6063 is typically used for architectural extrusions (window frames, decorative tubing), while 6061 is used for structural and machined parts.

What is the difference between 6061 and 7075?

7075 is a much higher-strength alloy (zinc-based) with roughly 1.5× the tensile strength of 6061-T6, but it is significantly harder to weld and more expensive. 6061 is preferred when you need a balance of strength, weldability, corrosion resistance, and cost. 7075 is preferred for aerospace and high-stress structural parts.

Can 6061 be anodized?

Yes, 6061 accepts both Type II (decorative) and Type III (hard) anodizing. For premium appearance with uniform color, 6063 is often preferred because it produces a cleaner anodized finish. Linsy offers in-house anodizing for 6061 components.

What standards apply to 6061 aluminum?

Common standards include ASTM B209 (sheet/plate), B210 (drawn seamless tube), B211 (bar/rod/wire), B221 (extruded products), B308 (structural profiles), ISO 6361, and EN 573-3. EN AW-6061 (AlMg1SiCu) is the European designation, and UNS A96061 is the unified numbering.

What is the density of 6061 aluminum?

6061 has a density of 2.70 g/cm³ (0.0975 lb/in³), identical to most other aluminum alloys. The weight advantage comes from the material’s strength, not from a different density.

Which regions do you ship to?

Linsy ships globally, with established supply coverage in Europe, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and South Asia.

Üretim Ekipmanları

Sertifikalar

Depo ve Stok

Sipariş Süreci

SSS

Biz hem bir üretici hem de bir distribütör.
ile 20 yılı aşkın süredir Alüminyum endüstrisindeki tecrübemizle, kendimizi saygın bir Çin alüminyum fabrikası ve distribütörü olarak kurduk.
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Alüminyum ürünlerimiz aşağıdaki gibi uluslararası kalite standartlarını karşılamaktadır ISO9001, SGS ve ASTM vb.
Üretimin her aşamasında kaliteye öncelik vererek en yüksek ürün kalitesini sağlamak.
Alüminyum ürünlerimiz aşağıdakiler de dahil olmak üzere çeşitli endüstrilerin standartlarını karşılar ve bunlara hizmet eder inşaat, otomotiv, gemi yapımı, deniz mühendisliği, ambalaj, havacılık, elektronik ve diğerleri.

Evet, biz sunuyoruz özelleştirilmiş alüminyum ürünler özel gereksinimlerinize göre uyarlanmıştır.

Biz küçük parti siparişi kabul etti, ve böylece biz mutlaka MOQ gerektirmez standart alüminyum ürünlerimizin çoğuna uygundur.

Çeşitli ödeme yöntemlerini kabul ediyoruz, T / T ve L / C dahil. Ödeme koşulları siparişinize göre tartışılabilir.

Evet, alüminyum ürünlerimizden örnekler sağlayabiliriz. Lütfen numune talep ediniz, ve size yardımcı olmaktan mutluluk duyarız.
Biz de çok hoş müşteri̇ler dünyanın dört bir yanından Çin'deki fabrikalarımızı ve depolarımızı ziyaret edin.

Kapsamlı bir garanti politikası sunuyoruz. Miktar veya kalite ile ilgili herhangi bir sorun varsa, alıcının şunları yapması gerekir malları teslim aldıktan sonra 60 gün içinde bildirmek boşaltma portunda.
Eğer şikayet geçerli ise, şunları yapacağız 30 gün içinde çözüme kavuşturun kararlaştırılan tazminat tutarını sağlayarak.
İçin ambalajlama sorunlari yükleme ve boşaltma sırasında kaba kullanımdan kaynaklanıyorsa, lütfen doğrudan sigorta şirketiyle iletişime geçin.

Teslim süreleri ürüne ve sipariş miktarına göre değişir.
Lütfen Bize ulaşın Özel siparişiniz için tahmini teslim süreleri için. 

Tüm ürünlerimiz Paketlemeden önce kalite açısından sıkı bir şekilde test edilmiştir, ve kalifiye olmayan ürünler imha edilecektir. 

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Linsy Alüminyum, havacılık, genel mühendislik, otomotiv, denizcilik, gemi yapımı ve diğer özel endüstriyel uygulamalar dahil olmak üzere çeşitli endüstrilere hizmet veren lider bir alüminyum işleme ürünleri tedarikçisidir.

Sertifikalarımızın da gösterdiği gibi, en yüksek kalite ve çevresel sorumluluk standartlarını sürdürmeye kararlıyız: ISO 9001:2008 , ISO 14001:2004 ve SGS.

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