ASTM A570 Steel Seamless tube, grade A

ASTM A570 Steel Seamless tube, grade A, sheet and strip Product Information -:- For detailed product information, please contact sales. -: ASTM A570 Steel Seamless tube, grade A, sheet and strip Synonyms -:- For detailed product information, please contact sales. -:

ASTM A570 Steel, grade A, sheet and strip Product Information -:- For detailed product information, please contact sales. -: ### **ASTM A570 Grade A: Carbon Steel Sheet and Strip** #### **1. Overview** ASTM A570 Grade A is a standard specification for **carbon steel sheets and strips** in various quality grades, primarily used for **structural and general engineering applications**. Grade A represents the lowest strength level within this specification, offering good formability and weldability for applications where high strength is not the primary requirement. This material is typically supplied in the as-rolled condition and is widely used in construction, manufacturing, and general fabrication industries. #### **2. Chemical Composition** The chemical composition is balanced for good formability and weldability: | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.15 max | | Manganese (Mn) | 0.60 max | | Phosphorus (P) | 0.035 max | | Sulfur (S) | 0.035 max | | Copper (Cu) | 0.20 min (when specified) | **Key Composition Features:** - **Low Carbon Content**: Ensures excellent weldability and formability - **Moderate Manganese**: Provides basic strength and hardenability - **Standard Quality Control**: Meets basic structural steel requirements - **Copper Option**: Available for improved atmospheric corrosion resistance #### **3. Physical & Mechanical Properties** **Mechanical Properties:** | Property | Requirement | |----------|-------------| | **Tensile Strength** | 45 ksi min (310 MPa min) | | **Yield Strength** | 25 ksi min (170 MPa min) | | **Elongation in 2 inches** | 25% min | **Physical Properties (Typical):** - **Density**: 0.284 lb/in³ (7,850 kg/m³) - **Modulus of Elasticity**: 29,000 ksi (200 GPa) - **Poisson's Ratio**: 0.29 - **Thermal Expansion Coefficient**: 6.5 × 10⁻⁶/°F (11.7 × 10⁻⁶/°C) - **Thermal Conductivity**: 45.0 W/m·K at 212°F (100°C) **Forming Characteristics:** - **Excellent Formability**: Suitable for bending, rolling, and deep drawing - **Good Weldability**: All standard welding processes applicable - **Surface Quality**: Commercial finish standard, various surface treatments available #### **4. Product Applications** Grade A is widely used in various structural and general applications: **Construction and Building:** - Building framing members - Roof and wall panels - Structural supports and braces - Building hardware components **Manufacturing and Fabrication:** - Machine guards and covers - Equipment housings and enclosures - Fabricated metal products - General machinery components **Transportation and Automotive:** - Truck and trailer components - Vehicle structural members - Automotive brackets and supports - Transportation equipment parts **Consumer Products:** - Furniture frames - Storage rack components - Appliance parts - General hardware items #### **5. International Standards & Equivalents** | Region/Country | Standard | Equivalent Grade | Notes | |----------------|----------|------------------|-------| | **International** | **ISO 3574** | CR1 | Commercial quality carbon steel | | **Europe** | **EN 10025-2** | S235JR | Structural steel equivalent | | **Japan** | **JIS G3101** | SS330 | General structural steel | | **China** | **GB/T 700** | Q195 | Carbon structural steel | **A570 Grade Comparison:** | Grade | Tensile Strength min | Yield Strength min | Typical Applications | |-------|---------------------|-------------------|---------------------| | **Grade A** | 45 ksi | 25 ksi | Light structural, general purpose | | **Grade B** | 50 ksi | 30 ksi | Intermediate strength applications | | **Grade C** | 55 ksi | 33 ksi | Medium strength structural | #### **6. Fabrication & Quality Assurance** **Forming and Fabrication:** - **Bending**: Excellent cold bending capabilities - **Punching**: Good punchability with standard tooling - **Welding**: All processes suitable (SMAW, GMAW, GTAW, Resistance) - **Machining**: Good machinability with proper tools and techniques **Surface Treatments:** - **Painting**: Excellent paint adhesion with proper surface preparation - **Galvanizing**: Suitable for hot-dip and electro-galvanizing - **Plating**: Can be plated with various metallic coatings - **Phosphating**: Provides good paint base and corrosion resistance **Quality Control:** - **Tension Tests**: From each lot of material - **Bend Tests**: Required to verify ductility - **Surface Inspection**: Visual examination for defects - **Dimensional Checks**: Thickness, width, and flatness verification --- **Technical Advantages:** - **Cost-effective** solution for light structural applications - **Excellent formability** for complex fabrications - **Good weldability** with standard processes - **Wide availability** in various sizes and forms **Design Considerations:** - **Structural applications** with moderate load requirements - **Forming operations** requiring good ductility - **Welded constructions** with standard procedures - **Cost-sensitive projects** where material economy is important **Service Limitations:** - **Not recommended** for high-stress applications - **Limited corrosion resistance** without protective coatings - **Impact properties** may be limited at low temperatures - **Strength limitations** for heavy structural applications **Disclaimer:** This information is for technical reference only. For structural applications, consult the latest ASTM A570 specification and applicable building codes. Material selection should consider specific service conditions, loading requirements, and environmental factors, and must be approved by qualified engineers. Proper fabrication practices and quality control measures should be implemented to ensure satisfactory performance. -:- For detailed product information, please contact sales. -: ASTM A570 Steel, grade A, sheet and strip Specification Dimensions Size： Diameter 20-1000 mm Length <4463 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 A570 Steel, grade A, sheet and strip Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A570 Steel Seamless tube, grade A, sheet and strip -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A570 Steel Seamless tube, grade A, sheet and strip -:- For detailed product information, please contact sales. -:

Packing of ASTM A570 Steel Seamless tube, grade A, sheet and strip -:- 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 Seamless tube 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 934 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