ASTM A446 Steel Foil/Strip, grade F

ASTM A446 Steel Foil, grade F Product Information -:- For detailed product information, please contact sales. -: ASTM A446 Steel Foil, grade F Synonyms -:- For detailed product information, please contact sales. -:

ASTM A446 Steel, grade F Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A446 Steel, Grade F** --- #### **1. Product Overview** ASTM A446 Grade F is the **highest strength grade** in the A446 standard series, representing the ultimate in zinc-coated (galvanized) structural steel sheet technology. This premium grade is specifically engineered for the most extreme applications in corrugated steel pipe, structural plate structures, and critical civil engineering projects where maximum load-bearing capacity, structural performance, and long-term durability are paramount. Grade F incorporates advanced metallurgical design to deliver exceptional mechanical properties while maintaining excellent corrosion protection through hot-dip galvanizing. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A446 Grade F** | | **UNS Number** | **K02800** | | **ISO International Standard** | **ISO 3575** | | **European Norm (EN)** | **EN 10346 DX60D+Z** | | **Japanese (JIS)** | **G 3302 SGH540** | | **Chinese GB** | **GB/T 2518** | | **Australian/New Zealand** | **AS/NZS 1397 G650** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.22 max | | **Manganese (Mn)** | 1.60 max | | **Phosphorus (P)** | 0.025 max | | **Sulfur (S)** | 0.025 max | | **Silicon (Si)** | 0.20 max | | **Copper (Cu)** | 0.25 min (when required) | | **Niobium (Nb)** | 0.005-0.08 | | **Vanadium (V)** | 0.01-0.15 | | **Titanium (Ti)** | 0.005-0.05 | | **Aluminum (Al)** | 0.015-0.065 | | **Nitrogen (N)** | 0.012 max | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Precision Carbon Control**: Maximum 0.22% optimized for strength-ductility balance - **Advanced Manganese**: Up to 1.60% for superior strength enhancement - **Comprehensive Microalloying**: Nb-V-Ti system for maximum precipitation strengthening - **Enhanced Purity**: Ultra-low phosphorus and sulfur for improved toughness - **Nitrogen Control**: Strict limits for optimal microalloy precipitation --- #### **4. Mechanical Properties** **Tensile Properties:** - **Tensile Strength**: 620 MPa (90,000 psi) min - **Yield Strength**: 550 MPa (80,000 psi) min - **Elongation in 50 mm (2 in)**: 10% min - **Yield-to-Tensile Ratio**: 0.85-0.95 typical **Hardness Properties:** - **Brinell Hardness**: 175-240 HB typical - **Rockwell Hardness**: 95-110 HRB typical **Advanced Mechanical Properties:** - **Charpy V-Notch Impact**: 27 J min at -20°C (when specified) - **Plastic Strain Ratio (r-value)**: 1.1 min - **Strain Hardening Exponent (n-value)**: 0.10 min **Coating Properties:** - **Coating Weight**: 350 g/m² (1.15 oz/ft²) min standard - **Coating Adhesion**: Premium - maintains integrity through severe forming operations --- #### **5. Physical Properties** | Property | Value | |----------|-------| | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Modulus of Elasticity** | 200 GPa (29,000 ksi) | | **Shear Modulus** | 77 GPa (11,200 ksi) | | **Poisson's Ratio** | 0.29 | | **Thermal Conductivity** | 49.5 W/m·K at 20°C | | **Coefficient of Thermal Expansion** | 11.3 × 10⁻⁶ /K (20-100°C) | | **Specific Heat Capacity** | 455 J/kg·K | | **Electrical Resistivity** | 0.19 μΩ·m | --- #### **6. Product Applications** **Extreme Civil Engineering Applications:** - **Super-Large Span Structures**: Mega culverts and bridges exceeding 8m diameter - **Ultra-Deep Burial Applications**: Structures under extreme overburden (≥60 feet) - **Critical Infrastructure**: Nuclear facility drainage, dam outlet works - **Seismic-Resistant Structures**: Infrastructure in highest seismic zones **Premium Infrastructure Projects:** - **Major Transportation Tunnels**: Highway and railway tunnel liners - **Coastal Defense Systems**: Breakwaters, sea walls, marine structures - **Mining Infrastructure**: Deep shaft linings, underground support systems - **Flood Control Mega-Structures**: Major river control and diversion systems **Specialized High-Performance Applications:** - **Military Infrastructure**: Critical defense installation utilities - **Nuclear Power Plants**: Safety-related cooling water systems - **Disaster-Resilient Structures**: Hurricane and tsunami zone infrastructure - **Heavy Industrial Complexes**: Petrochemical and mining infrastructure --- #### **7. Manufacturing & Fabrication** **Advanced Forming Characteristics:** - **Controlled Formability**: Requires specialized equipment and expertise - **Minimum Bend Radius**: 3.5 × thickness for 90° bends - **Coating Adhesion**: Exceptional performance through demanding fabrication - **Springback Management**: Requires advanced forming techniques **Welding Performance:** - **Specialized Weldability**: Requires certified procedures and welders - **Recommended Processes**: GMAW-P, FCAW-G with matching strength filler metals - **Stringent Pre-heat Requirements**: 150-250°C depending on thickness - **Comprehensive Quality Control**: Essential for all welding operations **Fabrication Excellence:** - **Premium Fastening Systems**: High-strength bolting systems required - **Specialized Tooling**: Mandatory for all fabrication operations - **Quality Assurance**: Full documentation and traceability --- #### **8. Quality Assurance & Testing** **Premium Testing Protocol:** - Complete chemical analysis with advanced spectroscopy - Multiple orientation tension testing - Advanced bend testing to strict criteria - Comprehensive coating evaluation - Full mechanical properties characterization **Elite Quality Requirements:** - Microstructural analysis and grain size determination (ASTM 9-11) - Charpy V-notch impact testing at multiple temperatures - Hardness traverses and mapping - Non-destructive examination - Third-party certification standard --- #### **9. Corrosion Performance** - **Maximum Protection**: Premium zinc coating for extreme service life - **Severe Environment Capability**: Suitable for most aggressive environments - **Design Life Expectancy**: 80-150+ years with proper design - **Advanced Corrosion Systems**: Compatible with additional protection methods --- #### **10. Available Product Forms** **Premium Dimensions:** - **Thickness Range**: 3.0 mm to 10.0 mm (0.118" to 0.394") - **Width Range**: 600 mm to 2000 mm (24" to 79") - **Length Range**: Precision engineered cut lengths **Surface Conditions:** - Premium hot-dip galvanized coating - Minimum coating weight 350 g/m² standard - Surface-treated finishes for enhanced performance --- #### **11. Technical Specifications** **Premium Coating Requirements:** - **Coating Weight**: 350 g/m² (1.15 oz/ft²) minimum standard - **Coating Uniformity**: Premium quality with minimum 95% coverage - **Adhesion Performance**: Must withstand all fabrication processes **Stringent Dimensional Tolerances:** - **Thickness Tolerance**: ±0.07 mm - **Width Tolerance**: +3 mm, -0 mm - **Length Tolerance**: +5 mm, -0 mm - **Flatness**: Premium requirements for critical applications --- **Technical Notes:** - Grade F provides approximately 140% higher yield strength than Grade A - Engineered for the world's most demanding structural applications - Requires specialized engineering design using advanced analysis methods - State-of-the-art microalloying technology provides ultimate strength-toughness combination - Must comply with AASHTO LRFD Bridge Design Specifications and international codes - All applications require professional engineering design by certified structural engineers *This information is for reference purposes. For complete technical specifications and design requirements, consult the latest ASTM A446 standard, AASHTO LRFD Bridge Design Specifications, and applicable structural design codes. All applications must be designed and certified by qualified professional engineers.* -:- For detailed product information, please contact sales. -: ASTM A446 Steel, grade F Specification Dimensions Size： Diameter 20-1000 mm Length <4256 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: ASTM A446 Steel, grade F Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A446 Steel Foil, grade F -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A446 Steel Foil, grade F -:- For detailed product information, please contact sales. -:

Packing of ASTM A446 Steel Foil/Strip, grade F -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Foil/Strip drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 727 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition