ASTM A455 Carbon Steel Seamless tube

ASTM A455 Carbon Steel Seamless tube Product Information -:- For detailed product information, please contact sales. -: ASTM A455 Carbon Steel Seamless tube Synonyms -:- For detailed product information, please contact sales. -:

ASTM A455 Carbon Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A455 / A455M High-Strength Carbon-Manganese Steel Plates** **1. Overview** ASTM A455 / A455M is a standard specification for high-strength carbon-manganese steel plates of structural quality, primarily intended for use in welded pressure vessels and other critical applications. This specification covers steel plates with enhanced mechanical properties achieved through controlled chemistry and processing, providing higher strength levels than conventional carbon steels while maintaining good weldability. **2. Key International Standards** * **Primary Standard:** **ASTM A455 / A455M** - Standard Specification for Pressure Vessel Plates, Carbon Steel, High-Strength Manganese * **Governing Standard:** **ASTM A20/A20M** - Standard Specification for General Requirements for Steel Plates for Pressure Vessels * **International Equivalents:** * **EN 10028-2:** P355GH (European pressure vessel steel equivalent) * **JIS G3115:** SB410 (Japanese pressure vessel steel) * **GB 713:** Q345R (Chinese pressure vessel steel equivalent) **3. Chemical Composition (Weight %)** The chemical composition is optimized to achieve high strength through manganese content and controlled carbon levels: | Element | Composition (%) | | :---------------- | :---------------------------------- | | Carbon (C), max | 0.30 | | Manganese (Mn) | 1.00 - 1.60 | | Phosphorus (P), max | 0.035 | | Sulfur (S), max | 0.040 | | Silicon (Si) | 0.15 - 0.40 | | **Special Requirements** | **Killed steel, fine grain practice typically specified** | *Note: The high manganese-to-carbon ratio provides the enhanced strength characteristics while maintaining good toughness and weldability.* **4. Mechanical & Physical Properties** **Mechanical Properties (at room temperature):** | Property | Value | | :--- | :--- | | Tensile Strength | 550 - 690 MPa (80 - 100 ksi) | | Yield Strength (min) | 345 MPa (50 ksi) | | Elongation in 2 in. (50 mm), (min) | 18% | | **Hardness (typical)** | **~190-230 HB** | **Physical Properties:** * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Modulus of Elasticity:** 200 GPa (29 × 10⁶ psi) * **Thermal Conductivity:** ~47.0 W/m·K (at 100°C) * **Coefficient of Thermal Expansion:** ~11.7 × 10⁻⁶/K (20-100°C) * **Poisson's Ratio:** 0.29 **5. Product Applications** ASTM A455 steel is employed in demanding applications requiring high strength and reliability: * **Pressure Vessels:** High-pressure containers and reactors * **Storage Tanks:** Large diameter pressure storage vessels * **Heat Exchangers:** High-pressure shell and tube equipment * **Boiler Components:** Pressure parts in power generation boilers * **Structural Applications:** Heavy construction and mining equipment * **Industrial Machinery:** High-stress components and frames **6. Key Characteristics & Advantages** * **High Strength-to-Weight Ratio:** Enables lighter, more efficient designs * **Good Toughness:** Adequate fracture resistance for pressure containment * **Cost-Effective:** Provides high strength without alloying elements * **Good Weldability:** Suitable for all conventional welding methods with proper procedures * **Excellent Formability:** Can be formed and fabricated using standard methods * **Consistent Properties:** Killed steel practice ensures uniform mechanical behavior **7. Fabrication Considerations** * **Heat Treatment:** Typically supplied in normalized condition * **Welding:** Requires controlled procedures including pre-heating and proper electrode selection * **Forming:** Good cold forming characteristics within recommended limits * **Post-Weld Heat Treatment:** Often required for stress relief * **Machining:** Good machinability in proper condition **8. Quality Assurance** * Fine austenitic grain size requirement * Killed steel practice mandatory * Charpy V-notch testing available as supplementary requirement * Strict non-destructive testing requirements for critical applications ASTM A455 represents an economical high-strength carbon-manganese steel option, providing designers with enhanced mechanical properties for demanding pressure vessel and structural applications while maintaining the cost advantages of carbon steel construction. -:- For detailed product information, please contact sales. -: ASTM A455 Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4391 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 A455 Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A455 Carbon Steel Seamless tube -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A455 Carbon Steel Seamless tube -:- For detailed product information, please contact sales. -:

Packing of ASTM A455 Carbon Steel Seamless tube -:- 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 862 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