1/2

<< /span>

5083 Aluminum Round Bar

5083 anti rust aluminum extrusion rod is made through extrusion process. Extrusion technology is a plastic processing method that squeezes metal billets into the desired shape and size through molds. During the extrusion process, the 5083 aluminum alloy billet is heated and lubricated before being fed into the mold of the extruder for extrusion. The shape of the mold determines the cross-sectional shape of the extrusion rod, while the parameters of the extrusion process affect the dimensional accuracy, surface quality, and mechanical properties of the extrusion rod.

Send Inquiry

1. Material Composition & Manufacturing Process

5083 aluminum alloy is a high-performance non-heat-treatable Al-Mg alloy renowned for its exceptional strength, weldability, and superior corrosion resistance in marine environments. The round bar configuration offers optimized properties for critical structural and marine applications:

Primary Alloying Elements:

Magnesium (Mg): 4.0-4.9% (solid solution strengthening)

Manganese (Mn): 0.4-1.0% (grain structure control)

Chromium (Cr): 0.05-0.25% (corrosion resistance enhancement)

Base Material:

Aluminum (Al): ≥92.4% (balance)

Controlled Impurities:

Iron (Fe): ≤0.40% max

Silicon (Si): ≤0.40% max

Copper (Cu): ≤0.10% max

Zinc (Zn): ≤0.25% max

Titanium (Ti): ≤0.15% max

Other elements: ≤0.05% each, ≤0.15% total

Premium Manufacturing Process:

Melt Preparation:

Primary high-purity aluminum (99.7% minimum)

Precise alloying element additions

Melt filtration through ceramic foam filters (20-30 ppi)

Advanced degassing treatment (hydrogen < 0.1 ml/100g)

Grain refinement with Al-Ti-B master alloy

Direct-chill (DC) semi-continuous casting

Homogenization:

450-480°C for 8-16 hours

Uniform temperature control: ±5°C

Controlled cooling rate: 25-40°C/hour

Mn-dispersoid optimization

Hot Working:

Initial breakdown: 380-420°C

Intermediate rolling/forging: 350-400°C

Final hot working: 320-370°C

Careful temperature control to prevent cracking

Cold Working:

H111: Minimal strain hardening after hot working

H112: Slightly strained during production

H116: Marine-optimized temper

H32: Quarter-hard condition (strain hardened)

Finishing:

Surface conditioning

Precision straightening

Stress relieving treatment for H32 temper

Dimensional verification

Surface quality inspection

Full manufacturing traceability with comprehensive documentation for critical applications.

2. Mechanical Properties of 5083 Aluminum Round Bar

Property	H111 (min)	H111 (typical)	H32 (min)	H32 (typical)	Test Method
Ultimate Tensile Strength	275 MPa	290-310 MPa	305 MPa	315-335 MPa	ASTM E8
Yield Strength (0.2%)	125 MPa	130-150 MPa	215 MPa	225-245 MPa	ASTM E8
Elongation (2 inch)	16%	18-22%	10%	12-16%	ASTM E8
Hardness (Brinell)	75 HB	75-85 HB	85 HB	85-95 HB	ASTM E10
Fatigue Strength (5×10⁸)	125 MPa	130-145 MPa	140 MPa	145-160 MPa	ASTM E466
Shear Strength	170 MPa	175-190 MPa	185 MPa	190-205 MPa	ASTM B769
Compressive Yield Strength	130 MPa	135-155 MPa	220 MPa	230-250 MPa	ASTM E9
Modulus of Elasticity	71.0 GPa	71.0 GPa	71.0 GPa	71.0 GPa	ASTM E111

Property Distribution:

Longitudinal to transverse property ratio: 1.00:0.90-0.95

Variation across diameter: <3% for bars up to 100mm, <5% for bars >100mm

Core to surface hardness variation: <5 HB

Property retention after welding: Superior compared to heat-treatable alloys

3. Microstructural Characteristics

Key Microstructural Features:

Grain Structure:

Equiaxed grains in annealed condition

Elongated grains in strain-hardened tempers

ASTM grain size 6-8 (45-22μm)

Uniform grain distribution across section

Precipitate Distribution:

Al₆Mn dispersoids: 50-200nm, uniform distribution

Al₈Mg₅ beta phase: Controlled volume fraction

Al-Fe-Mn intermetallics: Refined distribution

Cr-rich dispersoids: Enhances recrystallization control

Texture Development:

Moderate deformation texture in H32 temper

Near-random orientation in H111 condition

Controlled directionality for optimal properties

Special Features:

Fine Mg₂Si precipitates at grain boundaries

Absence of PFZs (precipitate-free zones)

Low dislocation density in H111 condition

Higher dislocation density in H32 temper

4. Dimensional Specifications & Tolerances

Parameter	Standard Range	Precision Tolerance	Commercial Tolerance	Test Method
Diameter	10-500 mm	±0.20mm up to 30mm	±0.30mm up to 30mm	Micrometer
		±0.6% above 30mm	±1.0% above 30mm
Ovality	N/A	50% of diameter tolerance	75% of diameter tolerance	Micrometer
Length	2000-6500 mm	±3mm	±6mm	Tape measure
Straightness	N/A	0.5mm/m	1.0mm/m	Straightedge
Surface Roughness	N/A	3.2 μm Ra max	6.3 μm Ra max	Profilometer
Cut End Squareness	N/A	0.5° max	1.0° max	Protractor

Standard Available Forms:

Round Bar: Diameters 10-500mm

Cut-to-length service available

Special tolerances available upon request

Precision ground bars for critical applications

Custom lengths and surface finishes available

5. Temper Designations & Strain Hardening Options

Temper Code	Process Description	Optimal Applications	Key Characteristics
F	As fabricated	Non-critical applications	No mechanical property guarantees
O	Annealed, softened	Applications requiring maximum formability	Maximum ductility, lowest strength
H111	Slightly strain hardened beyond O	Marine structural components	Good balance of strength and formability
H112	Strain hardened from shaping processes	General purpose structural applications	Slightly higher strength than H111
H116	Marine temper	Marine and offshore applications	Optimized for seawater corrosion resistance
H32	Strain hardened and partially annealed	High-strength applications	Higher strength with moderate ductility

Temper Selection Guidance:

H111/H112: General purpose marine applications

H116: Critical marine exposure applications

H32: Higher strength requirements

O: Maximum formability applications

6. Machining & Fabrication Characteristics

Operation	Tool Material	Recommended Parameters	Comments
Turning	Carbide, PCD	Vc=200-450 m/min, f=0.1-0.4 mm/rev	Good chip breaking with proper tooling
Drilling	HSS-Co, Carbide	Vc=60-120 m/min, f=0.15-0.35 mm/rev	Good hole quality, moderate build-up edge
Milling	Carbide, PCD	Vc=250-600 m/min, fz=0.1-0.25 mm	Use climb milling for best finish
Tapping	HSS, TiCN coated	Vc=15-25 m/min	Good thread quality with proper lubrication
Reaming	Carbide, PCD	Vc=40-100 m/min, f=0.2-0.5 mm/rev	H8 tolerance achievable
Sawing	Carbide-tipped	Vc=1500-2500 m/min	Moderate tooth pitch for best results

Fabrication Guidance:

Machinability Rating: 60% (1100 aluminum = 100%)

Surface Finish: Good (Ra 1.6-3.2μm readily achievable)

Chip Formation: Long, stringy chips; chip breakers recommended

Coolant: Water-soluble emulsion preferred (8-10% concentration)

Tool Wear: Moderate with proper parameters

Weldability: Excellent with TIG, MIG, and friction stir welding

Cold Working: Good formability in O/H111 condition

Hot Working: 350-450°C recommended temperature range

Cold Bending: Minimum radius 1× diameter (O temper), 1.5× diameter (H temper)

7. Corrosion Resistance & Protection Systems

Environment Type	Resistance Rating	Protection Method	Expected Performance
Industrial Atmosphere	Very Good	Clean surface	10-15+ years
Marine Atmosphere	Excellent	Clean surface	15-20+ years
Seawater Immersion	Very Good	Cathodic protection	10-15+ years with maintenance
High Humidity	Excellent	Standard cleaning	20+ years
Stress Corrosion	Excellent in H116	Proper temper selection	Superior to 6xxx series
Exfoliation	Excellent	Proper temper selection	Superior to 6xxx series

Surface Protection Options:

Anodizing:

Type II (Sulfuric): 10-25μm thickness

Type III (Hard): 25-75μm thickness

Note: May slightly reduce corrosion resistance in marine environments

Mechanical Finishing:

Polishing: Enhanced appearance and reduced corrosion initiation sites

Glass bead blasting: Uniform matte appearance

Painting Systems:

Epoxy primer + polyurethane topcoat

Marine-grade systems available

Specialized Marine Protection:

Impressed current cathodic protection

Sacrificial anodes (zinc or aluminum)

8. Physical Properties for Engineering Design

Property	Value	Design Consideration
Density	2.66 g/cm³	Weight calculation for marine components
Melting Range	574-638°C	Welding parameters
Thermal Conductivity	117-121 W/m·K	Thermal management design
Electrical Conductivity	28-32% IACS	Electrical applications design
Specific Heat	900 J/kg·K	Thermal mass calculations
Thermal Expansion (CTE)	23.8 ×10⁻⁶/K	Thermal stress analysis
Young's Modulus	71.0 GPa	Deflection and stiffness calculations
Poisson's Ratio	0.33	Structural analysis parameter
Damping Capacity	Better than 6xxx/7xxx series	Vibration-sensitive applications

Design Considerations:

Operating Temperature Range: -196°C to +200°C

Cryogenic Performance: Excellent (increased strength at low temperatures)

Corrosion Allowance: Typically 0.15mm/year in marine environments

Galvanic Compatibility: Isolation recommended with carbon steel

Magnetic Properties: Non-magnetic

Low-temperature impact resistance: Excellent (no ductile-to-brittle transition)

9. Quality Assurance & Testing

Standard Testing Procedures:

Chemical Composition:

Optical emission spectroscopy

Verification of all major elements and impurities

Mechanical Testing:

Tensile testing (longitudinal and transverse)

Hardness testing (Brinell)

Dimensional Inspection:

Diameter measurements at multiple locations

Straightness verification

Ovality measurement

Visual Inspection:

Surface defects assessment

Finish quality verification

Specialized Testing (When Required):

Ultrasonic inspection per ASTM E114

Corrosion testing (ASTM G67 for exfoliation)

Intergranular corrosion testing (ASTM G66)

Stress corrosion testing (ASTM G47)

Standard Certifications:

Mill Test Report (EN 10204 3.1)

Chemical analysis certification

Mechanical properties certification

Dimensional inspection report

Material traceability documentation

10. Applications & Design Considerations

Primary Applications:

Marine Engineering:

Ship propeller shafts

Rudder stocks and pintles

Marine hardware components

Offshore platform components

Transportation:

Naval and coast guard vessel structures

High-speed ferry components

Shipbuilding structural elements

Submarine components

Industrial Components:

Chemical processing equipment

Pressure vessels for marine environments

Cryogenic applications

Highly corrosive environment components

Defense Applications:

Naval gun mounts

Ammunition handling equipment

Radar and sensor support structures

Torpedo components

Specialized Uses:

Bolts and fasteners for marine use

Valve stems and components

Nuclear industry components

Desalination plant components

Design Advantages:

Exceptional corrosion resistance in marine environments

Excellent weldability without post-weld heat treatment

Superior stress corrosion cracking resistance

Good strength retention at cryogenic temperatures

Non-sparking properties for explosive environments

Excellent fatigue properties

Good machinability for complex components

Excellent formability in annealed condition

High strength-to-weight ratio

Proven history in demanding marine applications

Design Limitations:

Lower strength compared to 7xxx and 2xxx series

Not heat-treatable for strength enhancement

Higher cost than general-purpose alloys

Limited availability in very large diameters

Work hardening during fabrication must be considered

Limited high-temperature strength above 200°C

Economic Considerations:

Higher initial cost offset by long service life

Reduced maintenance costs in marine environments

Better life-cycle cost compared to stainless steel alternatives

Excellent recyclability and scrap value

Lower fabrication costs compared to titanium alternatives

Hot Tags: 5083 aluminum round bar, China 5083 aluminum round bar manufacturers, suppliers, factory, aluminium extruded 7075, aluminium extrusion custom, aluminum extruded surface finish, aluminum extrusion custom, 7075 round bar, aluminum bar finish