진전
Product Overview
알루미늄 라운드 바 6061 is a precipitation-hardened aluminum-magnesium-silicon (Al-Mg-Si) alloy rod, one of the most versatile and widely machined aluminum products in the industry. It combines medium-to-high strength, excellent machinability, good weldability, and superior corrosion resistance. 우리의 6061 aluminum round bars are available in T4, T6, T651 and T6511 tempers, produced per ASTM B211, GB/T 3191, 안에 755 and JIS H4040 standards, with diameters from 3 mm to 500 mm and custom lengths.
화학적 구성 요소 (%), ASTM B211 / GB/T 3190
알 (알류미늄): 95.8 – 98.6 (balance)
마그네슘 (마그네슘): 0.8 – 1.2
그리고 (규소): 0.4 – 0.8
구리 (구리): 0.15 – 0.40
Cr (크롬): 0.04 – 0.35
철 (철): 0.70 max
아연 (아연): 0.25 max
망 (망간): 0.15 max
의 (티탄): 0.15 max
Others Each: 0.05 max, Others Total: 0.15 max
기계적 성질 (Typical Values, Bar)
Temper T4 (Solution Heat Treated & Naturally Aged): 인장강도 180-240 MPa, 항복 강도 110-170 MPa, 연장 14-18%
Temper T6 (Solution Treated & Artificially Aged): 인장강도 290-310 MPa, 항복 강도 240-290 MPa, 연장 8-12%
Temper T651 (T6 + Stress Relieved): 인장강도 290-310 MPa, 항복 강도 240-290 MPa, 연장 8-12%
Temper T6511 (T6 + Stress Relieved, Extruded): 인장강도 290-310 MPa, 항복 강도 240-290 MPa, 연장 8-12%
경도: 95 HB (T6)
전단강도: 205 MPa (T6)
피로 강도: 96 MPa (T6, at 5×10⁸ cycles)
물리적 특성
밀도: 2.70 g/cm3 (0.0975 lb/in³)
Melting Point: 582-652°C (1080-1205°F)
열 전도성: 167 W/(m·K) at 25°C (T6)
전기 전도도: 43% IACS (T6)
Electrical Resistivity: 4.0 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 23.6 × 10⁻⁶/K (20-100°C)
탄성 계수: 68.9 평점 (10,000 ksi)
Poisson Ratio: 0.33
Specifications
표준: ASTM B211 (rolled/drawn), ASTM B221 (extruded), GB/T 3191, 안에 755-2 / 755-3, JIS H4040, QQ-A-225/8
Diameter: 3 mm – 500 mm (0.12″ – 19.7″)
길이: 1 m – 12 m (custom cutting available)
성질: 영형, T4, T6, T651, T6511
유형: Extruded bar, rolled bar, drawn bar, precision ground bar
Surface Finish: Mill finish, Bright, Drawn, Precision ground (h7-h9), Anodized
Tolerance: Diameter: ±0.1mm (drawn) to ±1.0mm (extruded), Straightness: ≤1mm/m
Special: Precision ground bars with h7/h8/h9 tolerance for machining centers
Key Features & Advantages
- Excellent machinability – ideal for CNC turning, 갈기, and drilling
- Medium-to-high strength – reliable for structural and load-bearing parts
- Good corrosion resistance – suitable for indoor and outdoor applications
- Excellent weldability – fully weldable with 4043 또는 5356 filler
- Heat treatable – T6 temper provides maximum mechanical properties
- Good dimensional stability – stress-relieved tempers available
- Consistent roundness and straightness – tight tolerances
- 경량 – reduces component weight in machinery and transport
- Good anodizing response – attractive protective finishes
- Available in precision ground condition – ready for high-precision parts
Applications
- Machinery – 샤프트, spindles, rollers, 다리, 기어, valve stems
- Automotive – drive shafts, suspension parts, fasteners, spacers
- 패스너 – bolts, screws, studs, 리벳, nuts
- 건설 – structural members, 괄호, anchors, fittings
- Aerospace – non-critical structural parts, 괄호, fittings
- Marine – propeller shafts, fittings, hardware
- 전자제품 – heat sink rods, antenna elements, support rods
- Tooling – mold components, jigs, fixtures, mandrels
- 스포츠 장비 – archery components, climbing gear, poles
- General engineering – bushings, standoffs, 다웰, custom machined parts
Quality Control & Testing
Every batch of our 6061 aluminum round bars undergoes strict quality control:
Chemical Analysis: Spectrometer verification of Mg, 그리고, 구리, 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: Diameter, roundness, straightness, and length checks
Surface Inspection: Visual inspection for scratches, pits, laps, and die marks
Ultrasonic Testing: UT inspection for internal soundness (available on request)
선적 서류 비치: Mill Test Certificate (MTC), material traceability, conformity certificate
포장 & 배송
포장: Standard export packaging – bars bundled with steel straps or polypropylene straps, protective paper or film wrapping, wooden pallets or crates for heavy bundles; individual protective tubes for precision ground bars
Marking: 합금, 성질, size, heat number, standard, manufacturer logo
Trade Terms: 본선 인도, CIF, CFR, EXW, DDP
지불: T/T (30% deposit, 70% before shipment), L/C at sight, Western Union, PayPal (sample orders)
리드 타임: Standard sizes in stock – 3-7 날; Custom sizes – 15-30 날
MOQ: 300 kg for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
왜 우리를 선택 했습니까
With over 15 years of experience in aluminum manufacturing and export, we are a trusted supplier of 6061 aluminum round bars to machinery manufacturers, fastener producers, and automotive companies in more than 50 countries. Our factory is equipped with modern extrusion, drawing, heat treatment, and precision grinding lines, ensuring consistent quality and tight 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!
