Product Overview
Алюминиевая трубка 6061 is a precipitation-hardened aluminum-magnesium-silicon (Al-Mg-Si) alloy tube, one of the most versatile and widely used aluminum alloys for structural applications. It combines medium-to-high strength, excellent weldability, хорошая коррозионная стойкость, and superior machinability. Наш 6061 aluminum tubes are available as seamless tubes and extruded tubes, in T4, Т5, T6 and T6511 tempers, produced per ASTM B210, АСТМ Б221, ГБ/Т 4437, В 755 and JIS H4080 standards, with custom outer diameters, wall thicknesses, and lengths.

Химический состав (%), АСТМ Б221 / ГБ/Т 3190
Al (Алюминий): 95.8 – 98.6 (balance)
мг (Magnesium): 0.8 – 1.2
И (Кремний): 0.4 – 0.8
Cu (Медь): 0.15 – 0.40
Кр (Chromium): 0.04 – 0.35
Фе (Железо): 0.70 max
Зн (Zinc): 0.25 max
Мин. (Марганец): 0.15 max
Из (Titanium): 0.15 max
Others Each: 0.05 max, Others Total: 0.15 max
Механические свойства (Typical Values, Tube)
Temper T4 (Solution Heat Treated & Naturally Aged): Предел прочности 180-240 МПа, Предел текучести 110-170 МПа, Удлинение 14-18%
Temper T5 (Cooled & Artificially Aged): Предел прочности 230-270 МПа, Предел текучести 180-230 МПа, Удлинение 8-12%
Temper T6 (Solution Treated & Artificially Aged): Предел прочности 260-310 МПа, Предел текучести 240-290 МПа, Удлинение 8-12%
Temper T6511 (T6 + Stress Relieved): Предел прочности 260-310 МПа, Предел текучести 240-290 МПа, Удлинение 8-12%
Твердость: 95 HB (T6)
Прочность на сдвиг: 200 МПа (T6)
Усталость сила: 95 МПа (T6, at 5×10⁸ cycles)
Физические свойства
Плотность: 2.70 g/cm³ (0.0975 lb/in³)
Melting Point: 582-652° C. (1080-1205° F.)
Теплопроводность: 167 W/(m·K) at 25°C (T6)
Электрическая проводимость: 43% IACS (T6)
Electrical Resistivity: 4.0 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 23.6 × 10⁻⁶/K (20-100° C.)
Модуль упругости: 68.9 ГПа (10,000 кси)
Poisson Ratio: 0.33
Specifications
Standards: АСТМ Б210 (seamless), АСТМ Б221 (extruded), ГБ/Т 4437.1, В 755-2 / 755-5, JIS H4080, ASME SB210
Outer Diameter: 3 мм – 500 мм (0.12″ – 19.7″)
Толщина стены: 0.4 мм – 40 мм (0.016″ – 1.57″)
Длина: 1 m – 12 m (custom cutting available)
Характер: Т4, Т5, T6, T6511, T6 drawn
Тип: Seamless tube, extruded tube, drawn tube
Surface Finish: Отделка мельницы, Bright, Anodized (silver, black, bronze), Powder coated, Polished
Толерантность: ИЗ: ±0.1mm (drawn) to ±1.0mm (extruded), Wall: ±5-10%, Длина: ±5mm
Special Shapes: Круглый, square, rectangular, oval, hexagonal, and custom profiles
Key Features & Преимущества
- Medium-to-high strength with excellent strength-to-weight ratio
- Excellent weldability – fully weldable with 4043 или 5356 filler wire
- Good corrosion resistance – suitable for outdoor and marine-adjacent environments
- Outstanding machinability – ideal for precision-machined components
- Good formability – can be bent, flared, flanged, and formed
- Heat treatable – T6 condition delivers maximum mechanical properties
- Excellent anodizing response – attractive and durable finishes
- Available seamless or extruded to suit different applications
- Consistent dimensional accuracy with tight tolerances
- Легкий вес – reduces structural weight and handling costs
Приложения
- Structural frameworks – railings, handrails, ladders, scaffolding, support frames
- Automotive – drive shafts, air brake lines, trim, рамки, heat exchanger tubes
- Aerospace – hydraulic and pneumatic tubing, fuel lines, structural ducts
- Bicycle and motorcycle – рамки, handlebars, racks, suspension parts
- Hydraulic and pneumatic systems – cylinders, piping, pressure lines
- Heat exchangers – condenser and evaporator tubing, cooling coils
- Строительство – curtain wall mullions, canopies, gates, fencing
- Морской – masts, rigging, handrails, boat structures
- Machinery – conveyor rollers, guide tubes, shafts, machine guards
- Электроника – LED heat sink housings, antenna masts, enclosures frames
- General engineering – bus bars, кронштейны, spacers, standoffs, арматура

Quality Control & Testing
Every batch of our 6061 aluminum tubes undergoes strict quality control:
Chemical Analysis: Spectrometer verification of Mg, И, Cu, Cr content
Mechanical Testing: Tensile test, yield strength test, elongation test, hardness test (per temper)
Heat Treatment Verification: Hardness and conductivity testing to verify T6 treatment
Dimensional Inspection: ИЗ, wall thickness, roundness, straightness, and length checks
Surface Inspection: Visual inspection for scratches, die lines, pits, and stains
Pressure Testing: Hydrostatic or eddy current testing for seamless tubes (on request)
Documentation: Mill Test Certificate (MTC), material traceability, conformity certificate
Упаковка & Перевозки
Упаковка: Standard export packaging – tubes bundled with plastic caps on both ends, wrapped in waterproof kraft paper and plastic film, wooden pallets or crates, steel strapping; protective paper interleaving for anodized surfaces
Marking: Сплав, характер, размер, heat number, стандартный, manufacturer logo
Trade Terms: FOB, CIF, CFR, EXW, DDP
Payment: T/T (30% deposit, 70% перед отправкой), L/C at sight, Western Union, PayPal (sample orders)
Время выполнения: Standard sizes in stock – 3-7 дни; Custom sizes – 15-30 дни
минимальный заказ: 300 kg for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
почему выбрали нас
With over 15 years of experience in aluminum manufacturing and export, we are a trusted supplier of 6061 aluminum tubes to automotive, строительство, and machinery companies in more than 50 countries. Our factory is equipped with modern extrusion, drawing, heat treatment, and testing lines, ensuring consistent quality and dimensional accuracy. We maintain large inventory of standard sizes and tempers for immediate delivery, and our experienced team can provide technical consultation and customized solutions for your specific applications. Contact us today for a competitive quote!
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