進捗
Product Overview
Aluminum Round Bar 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. Our 6061 aluminum round bars are available in T4, T6, T651 and T6511 tempers, produced per ASTM B211, ギガバイト/トン 3191, で 755 and JIS H4040 standards, with diameters from 3 mm to 500 mm and custom lengths.
化学組成 (%), ASTM B211 / ギガバイト/トン 3190
アル (アルミニウム): 95.8 – 98.6 (balance)
マグネシウム (マグネシウム): 0.8 – 1.2
と (シリコン): 0.4 – 0.8
銅 (銅): 0.15 – 0.40
Cr (クロム): 0.04 – 0.35
鉄 (鉄): 0.70 max
亜鉛 (亜鉛): 0.25 max
ん (マンガン): 0.15 max
の (チタン): 0.15 max
Others Each: 0.05 max, Others Total: 0.15 max
機械的性質 (Typical Values, Bar)
Temper T4 (Solution Heat Treated & Naturally Aged): 抗張力 180-240 MPa, 降伏強さ 110-170 MPa, 伸長 14-18%
Temper T6 (Solution Treated & Artificially Aged): 抗張力 290-310 MPa, 降伏強さ 240-290 MPa, 伸長 8-12%
Temper T651 (T6 + Stress Relieved): 抗張力 290-310 MPa, 降伏強さ 240-290 MPa, 伸長 8-12%
Temper T6511 (T6 + Stress Relieved, Extruded): 抗張力 290-310 MPa, 降伏強さ 240-290 MPa, 伸長 8-12%
硬度: 95 HB (T6)
剪断強度: 205 MPa (T6)
疲労強度: 96 MPa (T6, at 5×10⁸ cycles)
物理的特性
密度: 2.70 g/cm3 (0.0975 lb/in³)
Melting Point: 582-652℃ (1080-1205°F)
熱伝導率: 167 W/(m·K) at 25°C (T6)
電気伝導性: 43% IACS (T6)
Electrical Resistivity: 4.0 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 23.6 × 10⁻⁶/K (20-100℃)
弾性率: 68.9 GPa (10,000 クシ)
Poisson Ratio: 0.33
Specifications
規格: ASTM B211 (rolled/drawn), ASTM B221 (extruded), ギガバイト/トン 3191, で 755-2 / 755-3, JIS H4040, QQ-A-225/8
Diameter: 3 んん – 500 んん (0.12″ – 19.7″)
長さ: 1 m – 12 m (custom cutting available)
気性: ○, T4, T6, T651, T6511
タイプ: Extruded bar, rolled bar, drawn bar, precision ground bar
Surface Finish: Mill finish, Bright, Drawn, Precision ground (h7-h9), Anodized
許容範囲: 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 & 利点
- Excellent machinability – ideal for CNC turning, milling, 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 または 5356 filler
- Heat treatable – T6 temper provides maximum mechanical properties
- Good dimensional stability – stress-relieved tempers available
- Consistent roundness and straightness – tight tolerances
- 軽量 – reduces component weight in machinery and transport
- Good anodizing response – attractive protective finishes
- Available in precision ground condition – ready for high-precision parts
アプリケーション
- Machinery – シャフト, spindles, rollers, ピン, 歯車, valve stems
- Automotive – drive shafts, suspension parts, fasteners, spacers
- ファスナー – bolts, ネジ, studs, リベット, ナッツ
- Construction – structural members, 括弧, anchors, fittings
- Aerospace – non-critical structural parts, 括弧, fittings
- 海洋 – propeller shafts, fittings, hardware
- エレクトロニクス – heat sink rods, antenna elements, support rods
- Tooling – mold components, jigs, fixtures, mandrels
- Sports equipment – archery components, climbing gear, poles
- General engineering – bushings, standoffs, ダボ, custom machined parts
Quality Control & Testing
Every batch of our 6061 aluminum round bars undergoes strict quality control:
Chemical Analysis: Spectrometer verification of Mg, と, 銅, 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)
ドキュメンテーション: Mill Test Certificate (MTC), material traceability, conformity certificate
Packaging & 運送
Packaging: 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: 合金, 気性, サイズ, heat number, standard, manufacturer logo
Trade Terms: FOB, CIF, CFR, EXW, DDP
支払い: T/T (30% deposit, 70% 出荷前に), L/C at sight, Western Union, PayPal (sample orders)
Lead Time: Standard sizes in stock – 3-7 日々; Custom sizes – 15-30 日々
MOQ: 300 kg for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
私たちを選ぶ理由
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 国. 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!
