Aluminum Round Bar 6061 and 7075 are essential materials for industrial manufacturing, mechanical components, CNC machining, automotive parts, aerospace structures, and precision equipment. Known for their high strength, corrosion resistance, lightweight performance, and machinability, aluminum round bars are widely adopted by OEM manufacturers, fabrication workshops, and industrial contractors.
Aluminum round bars offer a reliable, uniform cross-section ideal for shafts, pins, bushings, and mechanical supports. They reduce weight while maintaining structural integrity, making them suitable for applications where both strength and precision are critical.
목차
무엇인가요 알루미늄 라운드 바
An aluminum round bar is a solid cylindrical rod made from high-grade aluminum alloy. It is available in various diameters and lengths, and commonly supplied in alloys such as 6061 for general-purpose structural applications or 7075 for high-strength critical components.
Key features of aluminum round bar:
- 높은 강도 대 중량 비율
- 우수한 내식성
- Superior machinability for CNC and manual operations
- Uniform mechanical properties along the length

합금 및 기계적 특성
6061 Aluminum Round Bar
6061 aluminum is a heat-treatable alloy that provides:
- Tensile strength: 290–320 MPa
- Yield strength: 240–275 MPa
- 신장: 8–12%
- 우수한 내식성
- Good fatigue and weldability
It is ideal for medium-load structural components, automotive brackets, machinery parts, and CNC-machined components.
7075 Aluminum Round Bar
7075 aluminum is chosen for applications requiring very high strength:
- Tensile strength: 540–570 MPa
- Yield strength: 470–500 MPa
- Excellent fatigue resistance
- Lightweight and durable
7075 aluminum round bars are suitable for aerospace, automotive, and high-performance mechanical parts where weight reduction is critical.
기술 사양 개요
| 매개변수 | 일반적인 범위 | 노트 |
|---|---|---|
| 합금 | 6061 / 7075 | Industrial and aerospace grade |
| 지름 | 6mm – 300mm | 유효한 주문 크기 |
| 길이 | 1–6 meters | 표준 또는 컷 길이 |
| 표면 | Mill finish / Polished / Anodized | Application-dependent |
| 용인 | +/- 0.1mm | 정밀 옵션 |
| 기준 | 미국재료시험협회(ASTM) B211 / EN 755 | 국제 규정 준수 |
Custom diameters and precision tolerances are available to meet engineering and project requirements.
CNC 가공의 응용 분야
Aluminum round bars are ideal for CNC machining due to:
- 낮은 절단 저항
- 매끄러운 표면 마감
- Consistent dimensional accuracy
- Reduced tool wear and machining time
Common machined parts include shafts, pins, bushings, spacers, brackets, and housings.
자동차 및 항공우주 응용 분야
In the automotive and aerospace industries, aluminum round bars provide:
- Lightweight structural components
- High-strength brackets and supports
- Engine parts and transmission components
- CNC-machined high-precision elements
6061 is commonly used for structural and mechanical components, while 7075 is preferred for high-strength, critical load-bearing parts.
해양 및 실외 응용 분야
Aluminum round bars, especially 6061, resist corrosion and are suitable for:
- Marine hardware
- Outdoor structural supports
- Industrial frameworks exposed to weather
- Machined marine components
Surface treatments such as anodizing or powder coating further enhance durability and aesthetics.
제작 및 용접
Aluminum round bars can be:
- Welded using MIG/TIG processes
- CNC or manually machined
- Drilled, tapped, or threaded
- Polished or anodized for protective or decorative finishes
For T6 tempered aluminum, post-weld heat treatment may be applied to restore mechanical strength in critical applications.
표면 마감 옵션
- Anodizing for corrosion protection and hardness
- Polishing for aesthetic or high-precision applications
- Powder coating for color customization and protection
- Sandblasting for textured surface appearance

품질 관리 및 인증
전문 공급업체가 제공합니다:
- Alloy composition verification
- 기계적 인장 및 항복 강도 테스트
- 치수 검사
- 표면 마감 검증
- 밀 테스트 인증서(MTC)
Compliance with ASTM B211 and EN 755 ensures international quality and reliability.
공급 능력
Manufacturers typically offer:
- 대량 생산 및 수출
- Custom diameters and cut-to-length services
- Precision machining support
- Protective packaging for transport and storage
Stable supply chains allow OEM manufacturers and industrial contractors to maintain consistent production schedules.
시장 수요 전망
Demand for aluminum round bars continues to rise due to:
- Growth in CNC machining and precision manufacturing
- Lightweight structural solutions for automotive and aerospace
- High-performance industrial machinery components
- Marine and outdoor equipment requiring corrosion-resistant materials
Its combination of machinability, strength, and corrosion resistance makes it a preferred material for modern industrial applications.
결론
Aluminum Round Bar 6061 / 7075 delivers high strength, corrosion resistance, lightweight performance, and excellent machinability.
It is ideal for CNC components, automotive and aerospace parts, industrial structures, and mechanical assemblies.
Selecting certified aluminum round bars ensures reliable performance, precise dimensions, and long-term durability.
자주 묻는 질문
6061 과 7075 알루미늄 원형 바의 차이점은 무엇입니까?
6061 는 부식 저항하고 기계로 가공할 수 있습니다; 7075 는 긴요한 신청을 위한 고강도를 제안합니다.
알루미늄 둥근 막대기는 양극 처리될 수 있습니까?
예, 양극 산화 처리는 내식성과 표면 내구성을 향상시킵니다.
사용자 정의 직경을 사용할 수 있습니까?
예, 제조업체는 광범위한 직경과 컷-투-길이 서비스를 제공합니다.
알루미늄 라운드 바 용접 가능합니까?
그렇습니다,MIG 와 TIG 용접은 양립합니다. 포스트 용접 열처리는 T6 성미에 적용될지도 모릅니다.
대량 공급이 가능한가요?
Yes, suppliers support OEM and industrial-scale orders.

