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6262-T9 Free Machining Aluminum Bar Anodizing Compatible Precision Turned Parts Automatic Screw Machine Production
The 6262-T9 aluminum alloy bar offers a unique combination of excellent free-machining characteristics and outstanding anodizing response, making it the ideal material choice for precision turned parts requiring both high productivity and decorative surface finishing. As a bismuth-modified 6000-series alloy, 6262 eliminates the lead content found in traditional free-cutting alloys while delivering comparable machinability, meeting tightening global environmental regulations including RoHS and REACH requirements for lead-free manufacturing.
Hydraulic component manufacturers, automotive OEM suppliers, pneumatic fitting producers, and precision engineering companies choose 6262-T9 aluminum bars when their products demand screw machine productivity combined with bright anodized decorative finishes. The alloy bridges the gap between high-machinability 2011 aluminum with its limited anodizing capability and standard 6061 aluminum with its moderate machinability, providing a single-material solution for parts requiring both high-speed production and aesthetically demanding surface treatments.
Key Features
Free-Cutting Performance Without Lead: Bismuth micro-alloying provides excellent chip breaking and tool life comparable to leaded aluminum alloys, achieving high productivity in automatic screw machines while maintaining RoHS and REACH compliance.
Outstanding Anodizing Compatibility: Produces bright, uniform, and aesthetically superior anodized finishes in clear, black, colored, and hard anodizing processes, eliminating the blotchiness and discoloration issues common with free-cutting 2011 alloy.
Good Mechanical Strength: The T9 solution heat-treated, artificially aged, and cold-worked temper delivers a tensile strength of 290 MPa minimum, suitable for load-bearing precision components.
Excellent Corrosion Resistance: As a 6000-series magnesium-silicon alloy, 6262 offers atmospheric corrosion resistance substantially better than 2000-series free-machining alloys, reducing field service failures.
Consistent Surface Quality: Machined surfaces exhibit smooth, uniform appearance with minimal grain structure visibility, providing an excellent substrate for electroplating, powder coating, and chemical conversion coatings.
Wide Processing Window: Forgiving machining parameters allow consistent results across different spindle speeds, feed rates, and tool geometries, reducing setup time and improving first-pass yield in multi-spindle operations.
Technical Specifications
Alloy Grade
6262-T9
Chemical System
Al-Mg-Si with Bi (Pb-free free-cutting additive)
Tensile Strength
≥ 290 MPa
Yield Strength (0.2% Offset)
≥ 260 MPa
Elongation at Break
≥ 8%
Hardness
≥ 85 HB
Machinability Rating
Excellent (significantly superior to 6061-T6)
Diameter Range
6 mm - 180 mm
Length Options
1 m / 2 m / 3 m / Custom up to 6 m
Shape
Round Bar
Anodizing Quality
Excellent across Type II (decorative) and Type III (hard) processes
6262-T9 aluminum bars are purpose-engineered for precision turned components requiring both high-speed production and premium surface finishes. Primary applications include hydraulic system fittings and adapters, pneumatic quick-connect couplings, automotive brake system components, fuel injection system parts, electronic connector bodies with decorative anodized finishes, camera and optical instrument components, marine hardware with bright anodized protection, architectural hardware and door furniture, bicycle and motorcycle components, and consumer electronics housings.
The lead-free composition makes 6262-T9 particularly attractive for manufacturers exporting to EU, Japanese, and North American markets subject to RoHS and ELV regulations. The alloy excellent machinability enables production rates approaching those of 2011 aluminum while producing components with cosmetic anodized finishes suitable for visible exterior applications where appearance is critical.
Packaging & Quality Assurance
6262-T9 aluminum bars are packaged in export-standard seaworthy wooden pallets with VCI anti-corrosion paper and heavy-duty polyethylene wrapping to prevent moisture and salt spray exposure during transit. Individual bars are separated with protective interleaving to maintain pristine surface condition for subsequent anodizing processes.
Quality control includes optical emission spectroscopy for chemical composition verification of each heat, 100% dimensional inspection, surface roughness measurement on machined test coupons, anodizing response testing on sample sections, and mechanical property verification per ASTM B211. Mill test certificates with full chemical, mechanical, and heat treatment data are included. All products are certified under SGS, ISO 9001, CE, and BIS with complete material traceability from billet casting through finished bar product.
Shanxi Taigang Stainless Steel Co., Ltd. focuses on the development of special steel mainly made of stainless steel,
and has formed a cluster of high-efficiency, energy-saving and long-l ife steel products mainly composed of stainless
steel, cold-rol led si l icon steel, and high-streng... Shanxi Taigang Stainless Steel Co., Ltd. focuses on the development of special steel mainly made of stainless steel,
and has formed a cluster of high-efficiency, energy-saving and long-l ife steel products mainly composed of stainless
steel, cold-rol led si l icon steel, and high-streng...
