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5052 Aluminum Plate

5052 aluminum plate is the most widely used rust proof aluminum. This alloy has high strength, especially fatigue resistance: high plasticity and corrosion resistance, good plasticity during semi cold work hardening, low plasticity during cold work hardening, good corrosion resistance, good weldability, and can be polished.

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1. Material Composition & Manufacturing Process

5052 aluminum alloy (ASTM B209, AMS 4002) features a magnesium-chromium alloying system optimized for corrosion resistance and formability:

Alloy Chemistry:

Magnesium (Mg): 2.2-2.8% (solution strengthening)

Chromium (Cr): 0.15-0.35% (corrosion resistance)

Iron (Fe): ≤0.40% max

Silicon (Si): ≤0.25% max

Copper (Cu): ≤0.10% max

Base Material:

Aluminum (Al): ≥96.7% (balance)

Trace Elements:

Zinc (Zn): ≤0.10% max

Manganese (Mn): ≤0.10% max

Titanium (Ti): ≤0.15% max

Advanced Manufacturing Process:

Continuous Casting: 680-720°C molten metal temperature

Hot Rolling: Initial reduction at 450-510°C

Cold Rolling: Final gauge reduction (30-80% reduction)

Stabilization Treatment:

H32: Slightly strain hardened + stabilized

H34: Medium strain hardened + stabilized

H38: Hard strain hardened + stabilized

Surface Treatment: Mill finish, brushed or embossed options

Certified to ASME SB209 and EN 485 standards with full traceability documentation.

2. Mechanical Properties by Temper State

Property	O Temper	H32 Temper	H34 Temper	Test Standard
Ultimate Tensile Strength	170-215 MPa	230-265 MPa	260-290 MPa	ASTM B557
Yield Strength (Rp0.2)	65-105 MPa	195-215 MPa	220-240 MPa	ASTM B557
Elongation (%)	18-25%	8-14%	6-10%	ASTM B557
Shear Strength	125-145 MPa	155-175 MPa	170-190 MPa	ASTM B831
Bearing Strength	310-350 MPa	440-480 MPa	480-520 MPa	ASTM E238
Fatigue Strength (10⁷)	90-115 MPa	110-135 MPa	120-145 MPa	ASTM E466
Hardness (Brinell)	47-52 HB	60-68 HB	68-75 HB	ASTM E10
Impact Toughness	25-30 J	20-24 J	15-20 J	ASTM E23

3. Heat Treatment & Microstructure Control

Strain Hardening Mechanism:

Cold rolling reduction determines final properties:

H32: 8-15% reduction

H34: 15-22% reduction

H38: 30-40% reduction

Stabilization Treatment: 120-160°C for 1-3 hours

Microstructural Characteristics:

Grain Size: ASTM 5-6 (40-60μm)

Dispersoid Phases:

Al₃Mg₂ particles (2-5nm)

Al₇Cr precipitates (10-30nm)

Dislocation Density:

O temper: 1×10⁸/cm²

H38 temper: 6×10¹⁰/cm²

Texture Components: Strong Brass {110}<112>

Recrystallization Fraction: Fully recrystallized in O temper

4. Dimensional Specifications for Plate

Parameter	Standard Range	Precision Tolerance	Special Capabilities
Thickness	0.5-150 mm	±1-3% (varies by gauge)	Up to 200 mm
Width	1000-3000 mm	±5-15 mm	Up to 4500 mm
Length	2000-12000 mm	±10-30 mm	Up to 18,000 mm
Flatness	5-15 mm/m	1-3 mm/m (precision)	-
Surface Roughness	0.4-1.2 μm Ra	0.2-0.4 μm Ra (polished)	Mirror finish
Edge Condition	Mill edge	Squared or beveled	CNC edge profiling

Forming Capabilities:

Stretch Forming: Up to 30% elongation

Deep Drawing: LDR of 1.8-2.2

Hydroforming: Complex shapes

Brake Forming: Minimum bend radius 1t (O temper)

Roll Forming: Continuous profiles

5. Corrosion Resistance Performance

Environment	Performance Rating	Corrosion Rate	Protection Methods
Seawater Immersion	Excellent	<0.002 mm/year	Alodine 1200S conversion
Coastal Atmosphere	Excellent	0.001-0.003 mm/year	Paint systems
Chemical Exposure	Good	0.01-0.1 mm/year	PVDF coating
Automotive Salt Spray	Excellent	ASTM B117 Rating A	E-coat pretreatment
Stress Corrosion	Excellent	SCC threshold >50MPa	-

Surface Treatment Options:

Mill Finish: Standard protective film

Anodizing: Decorative or hard coat

Powder Coating: Multiple color options

PVDF Coating: Superior weather resistance

Chromate Conversion: Alodine 600 series

Embossed Surfaces: Diamond or linear patterns

6. Machining & Fabrication Properties

Operation	Tool Material	Recommended Parameters	Quality Output
Waterjet Cutting	High-pressure	3500-4000 bar, 8-15 mm/min	±0.1-0.3 mm
Laser Cutting	Fiber laser	3-6 kW power, 5-20 m/min	Ra 3-8 μm
Routing	Carbide tools	3000-5000 RPM, 1500-3000 mm/min	Burr-free edges
Punching	HSS tooling	60-100 strokes/min	IT12 tolerance
Blanking	D2 tool steel	Clearance 8-12% material thick	Minimum 1.5t radius

Fabrication Advantages:

Weldability: Excellent without preheat

Shearability: Low tool wear rate

Formability: High ductility in annealed state

Joinability: Compatible with all standard methods

Polishability: Excellent surface finishing characteristics

7. Welding & Joining Technologies

Optimal Welding Processes:

Gas Metal Arc Welding (GMAW):

Wire: ER5356 or ER5556

Shielding Gas: Argon or Ar+25%He

Tungsten Inert Gas (GTAW):

Electrode: EWTh-2 (2% thorium)

Gas Flow: 12-18 L/min

Resistance Spot Welding:

Pressure: 2.5-4.0 kN

Time: 0.2-0.5 sec

Specialized Joining Methods:

Adhesive Bonding:

Epoxy structural: 15-25 MPa

Methacrylate: 12-20 MPa

Mechanical Fastening:

Self-piercing rivets

Blind rivets

Clinching technology

Brazing Systems:

Aluminum-silicon filler metals

Furnace or torch brazing

8. Physical Properties for Engineering Design

Property	Value	Design Significance
Density	2.68 g/cm³	Lightweight advantage
Young's Modulus	70.3 GPa	Stiffness in design
Poisson's Ratio	0.33	Stress distribution
CTE (20-100°C)	23.8 μm/m·°C	Thermal expansion
Thermal Conductivity	138 W/m·K	Heat transfer capability
Electrical Conductivity	35% IACS	Electrical applications
Melting Range	605-650°C	Processing safety margin
Magnetic Permeability	<1.01	Electromagnetic neutrality

9. Quality Control & Certification

Comprehensive Testing Protocol:

Chemical Analysis: Optical emission spectroscopy

Mechanical Testing: Batch/lot certification

Corrosion Testing:

ASTM G67 for intergranular corrosion

ASTM G85 for salt spray

Non-Destructive Testing:

Ultrasonic scanning (ASTM B594)

Eddy current examination

Surface Quality Inspection:

Visual per ASTM B209

Profilometer measurement

Certification & Compliance:

ISO 9001:2015 Quality System

AS9100 Aerospace Certification

NADCAP Special Processing

RoHS & REACH Compliance

Marine Classification: ABS, DNV, LR

FDA Compliance for food contact

10. Industrial Applications & Handling

Primary Application Sectors:

Marine components and superstructures

Transportation flooring and panels

Architectural cladding systems

Chemical processing equipment

Food & beverage processing

Electrical enclosures

HVAC ductwork

Automotive body panels

Handling & Storage Protocols:

Protective film: PE or PET coating

Storage orientation: Vertical or flat

Stacking: Wood separators every layer

Lifting: Wide belt slings (>150mm)

Environmental control: <70% humidity

Packaging: Desiccant loaded systems

Transportation Requirements:

Weatherproof covering

Edge protection systems

Non-metallic blocking

Cradle supports for plates

ISO container specifications

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