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5754-H111 Aluminum Alloy Bar - Superior Acid & Alkali Corrosion Resistance
The 5754-H111 aluminum alloy bar is a medium-strength, non-heat-treatable wrought aluminum-magnesium alloy engineered specifically for chemical processing environments and marine industrial applications requiring exceptional resistance to acidic and alkaline corrosion. With approximately 3% magnesium content, 5754 provides optimized corrosion performance superior to standard 5000-series alloys like 5052 in aggressive chemical atmospheres, while maintaining excellent formability and good weldability.
Chemical plant operators, desalination facility engineers, offshore platform constructors, and food processing equipment manufacturers select 5754-H111 aluminum bars for applications where material integrity under prolonged chemical exposure is the primary design criterion. The H111 temper, achieved through strain hardening followed by controlled annealing, provides the softest work-hardened condition with maximum ductility for severe forming operations while retaining the alloy's inherent corrosion resistance.
Key Features
Superior Acid Corrosion Resistance: The 3% magnesium content optimizes the passive oxide layer stability in acidic environments, providing significantly better resistance to dilute sulfuric, nitric, and organic acids compared to standard 6061 or 6082 alloys.
Excellent Alkali Environment Performance: Maintains structural integrity and surface quality in mild alkaline processing conditions common in chemical manufacturing, detergent production, and wastewater treatment facilities.
High Ductility for Complex Forming: H111 annealed-and-slightly-strain-hardened temper provides elongation exceeding 18%, enabling deep drawing, bending, and roll forming into complex geometries without intermediate annealing.
Good Weldability Without Post-Weld Treatment: Compatible with TIG and MIG welding processes, maintaining corrosion resistance in the heat-affected zone without requiring post-weld solution treatment or aging.
Food Processing Compatibility: The alloy's non-toxic magnesium composition meets international food contact material standards, suitable for food processing equipment, storage vessels, and conveying systems.
Excellent Combination of Properties: Balances moderate mechanical strength with outstanding corrosion resistance, formability, and weldability in a single material grade, reducing inventory complexity for multi-process fabrication shops.
Passes ASTM G31 immersion testing in dilute acid environments
Applications
5754-H111 aluminum bars are purpose-designed for the most demanding chemical processing and marine industrial applications. Chemical industry applications include:
Reactor vessel internals
Heat exchanger tube sheets and baffles
Chemical storage tank stiffeners and supports
Pump casings and impeller shafts for corrosive fluid handling
Valve bodies for acid service
Distillation column internals
Piping system flanges and fittings
Marine applications extend to:
Desalination plant structural components
Seawater cooling system internals
Offshore platform walkway and handrail fittings
Ship chemical tank cleaning system components
Coastal power plant cooling water system structures
The alloy is also specified for cryogenic equipment due to its retention of ductility at temperatures as low as -196°C, making it suitable for LNG processing and storage system components.
Packaging & Quality Assurance
Each shipment of 5754-H111 aluminum bars is packed in export-grade seaworthy wooden crates or pallets with VCI anti-corrosion paper, moisture-barrier polyethylene film, and steel banding for secure transit. Individual bars are interleaved with protective kraft paper to prevent surface abrasion.
Quality Assurance Procedures:
Optical emission spectroscopy for chemical composition verification per EN 573-3
Tensile testing from each heat treatment lot per EN 755 requirements
100% dimensional inspection and surface quality inspection
Intergranular corrosion testing per ASTM G67 when specified for marine applications
Ultrasonic inspection for internal soundness
Complete material certification packages with chemical analysis, mechanical test results, and NDT reports are provided with every shipment. All products carry SGS, ISO 9001, CE, and BIS certifications with full mill traceability from primary aluminum production through finished bar extrusion and heat treatment.
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...
