ASTM A501 Steel

ASTM A501 Steel Product Information -:- For detailed product information, please contact sales. -: ASTM A501 Steel Synonyms -:- For detailed product information, please contact sales. -:

ASTM A501 Steel Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A501 Steel, Hot-Formed Welded and Seamless Carbon Steel Structural Tubing** --- #### **1. Product Overview** ASTM A501 is a specification for **hot-formed welded and seamless carbon steel structural tubing** used in construction and structural applications. This standard covers black and hot-dipped galvanized hot-formed welded and seamless square, round, rectangular, and special shape structural tubing intended for various structural applications. Unlike cold-formed tubing (A500), A501 tubing is formed while the steel is hot, resulting in different mechanical properties and fabrication characteristics. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A501** | | **UNS Number** | **K02504** | | **ISO International Standard** | **ISO 10799** | | **European Norm (EN)** | **EN 10210-1** | | **Canadian Standards Association** | **CSA G40.21** | | **Japanese (JIS)** | **G 3444** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.26 max | | **Manganese (Mn)** | 1.35 max | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Copper (Cu)** | 0.20 min (when required) | | **Silicon (Si)** | 0.30 max | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Controlled Carbon Content**: Maximum 0.26% for good weldability - **Manganese Enhancement**: Up to 1.35% for strength - **Standard Impurity Limits**: Typical for structural steel - **Copper Option**: Available for enhanced corrosion resistance - **Silicon Content**: For deoxidation and strength --- #### **4. Mechanical Properties** **Tensile Properties:** - **Tensile Strength**: 310 MPa (45,000 psi) min - **Yield Strength**: 230 MPa (33,000 psi) min - **Elongation in 50 mm (2 in)**: 25% min **Hardness Properties:** - **Brinell Hardness**: 95-145 HB typical **Shape-Specific Properties:** - **Round Tubing**: Uniform strength in all directions - **Square Tubing**: Equal strength in both principal axes - **Rectangular Tubing**: Directional strength characteristics - **Special Shapes**: Custom structural properties --- #### **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** | 52.0 W/m·K at 20°C | | **Coefficient of Thermal Expansion** | 11.7 × 10⁻⁶ /K (20-100°C) | | **Specific Heat Capacity** | 475 J/kg·K | --- #### **6. Product Applications** **Structural Construction:** - **Building Construction**: Columns, beams, and structural framing - **Bridge Components**: Structural members in pedestrian and vehicular bridges - **Transmission Towers**: Utility pole structures and support systems - **Heavy Construction**: Primary structural elements in industrial facilities **Industrial Applications:** - **Heavy Equipment**: Machinery frames and structural supports - **Material Handling**: Conveyor systems and heavy-duty racking - **Industrial Platforms**: Mezzanines, walkways, and access structures - **Mining Equipment**: Structural components in mining operations **Infrastructure Projects:** - **Highway Structures**: Sign supports, lighting standards, guardrail systems - **Marine Structures**: Dock facilities and waterfront structures - **Agricultural Equipment**: Heavy-duty farm machinery frames - **Recreational Structures**: Park equipment and recreational facilities --- #### **7. Manufacturing & Fabrication** **Hot-Forming Characteristics:** - **Manufacturing Process**: Formed while steel is hot, resulting in stress-relieved material - **Surface Quality**: Characteristic mill scale from hot-forming process - **Dimensional Stability**: Good for structural applications - **Corner Properties**: Rounded corners typical of hot-formed sections **Welding Performance:** - **Excellent Weldability**: All standard welding processes applicable - **Recommended Processes**: SMAW, GMAW, FCAW - **Pre-heat**: Generally not required for standard applications - **Filler Metals**: AWS E70XX series electrodes **Fabrication Advantages:** - **Machining**: Good machinability with standard equipment - **Cutting**: Suitable for sawing, abrasive cutting, and thermal cutting - **Connection Methods**: Compatible with both welded and bolted connections - **Surface Preparation**: Mill scale removal recommended for certain coatings --- #### **8. Quality Assurance & Testing** **Standard Tests:** - Chemical analysis - Tension test - Flattening test (for round tubing) - Bend test (for shaped tubing) - Visual inspection **Additional Tests (when specified):** - Hardness test - Impact test - Non-destructive testing - Dimensional verification --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Good resistance in normal environments - **Mill Scale**: Provides some temporary protection - **Protection Methods**: Painting, galvanizing, or other coating systems - **Surface Preparation**: Mill scale removal recommended for optimal coating performance --- #### **10. Available Product Forms** **Standard Shapes and Sizes:** - **Round Tubing**: Various diameters from 12.7 mm upward - **Square Tubing**: Various sizes typically from 12.7 mm upward - **Rectangular Tubing**: Various dimension combinations - **Special Shapes**: Custom profiles as required **Surface Conditions:** - Black (hot-formed with mill scale) - Hot-dipped galvanized - Pickled and oiled (mill scale removed) - Painted or coated --- #### **11. Technical Specifications** **Dimensional Tolerances:** - **Outside Dimensions**: ±0.5% of specified dimension - **Wall Thickness**: ±10% - **Length**: +6 mm, -0 mm (+1/4", -0") - **Straightness**: 1.6 mm per meter (0.019 in per foot) **Structural Advantages:** - **Stress-Relieved**: Hot-forming process minimizes residual stresses - **Good Ductility**: Suitable for dynamic loading applications - **Weld Integrity**: Excellent weldability with proper procedures - **Structural Efficiency**: High strength-to-weight ratio --- **Technical Notes:** - Hot-formed tubing typically has more relaxed corner radii compared to cold-formed - Mill scale should be removed for certain coating applications - Suitable for both static and dynamic loading conditions - Must comply with applicable building codes and structural standards - Design should consider the unique characteristics of hot-formed sections - Galvanizing after fabrication provides excellent corrosion protection *This information is for reference purposes. For complete requirements and current specifications, consult the latest ASTM A501 standard and applicable structural design codes. Always verify material properties with certified mill test reports for structural applications.* -:- For detailed product information, please contact sales. -: ASTM A501 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4263 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 A501 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A501 Steel -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A501 Steel -:- For detailed product information, please contact sales. -:

Packing of ASTM A501 Steel -:- 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 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 734 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