ASTM A573 Steel, grade 58

ASTM A573 Steel, grade 58 Product Information -:- For detailed product information, please contact sales. -: ASTM A573 Steel, grade 58 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A573 Steel, grade 58 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A573 Grade 58 Steel** **ASTM A573 Grade 58** is a carbon-manganese-silicon steel plate specifically designed for structural applications requiring improved toughness characteristics. Classified under the specification for "Structural Carbon Steel Plates of Improved Toughness," this grade provides a minimum yield strength of **33 ksi (230 MPa)** with enhanced impact properties compared to conventional carbon steels. The "58" designation refers to the minimum tensile strength in ksi units, making it particularly valuable for applications where reliability under dynamic or impact loading conditions is essential. --- #### **1. International Standards & Grades** **Primary Standard:** **ASTM A573/A573M** - "Standard Specification for Structural Carbon Steel Plates of Improved Toughness" **Grade Classification:** - **Grade 58** [400 MPa tensile strength] - Minimum tensile strength 58 ksi - Other grades in A573 series: 65 and 70 **International Equivalents:** - **EN 10025-2**: S235J0/S235J2 - **JIS G3101**: SM400 - **GB/T 700**: Q235 - **ISO 630-2**: E235C --- #### **2. Chemical Composition** The chemical composition requirements for ASTM A573 Grade 58: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.23 | | Manganese (Mn) | 0.60-0.90 | | Phosphorus (P) | 0.035 | | Sulfur (S) | 0.040 | | Silicon (Si) | 0.15-0.40 | **Key Composition Features:** - **Controlled Carbon Content**: Optimized for toughness and weldability - **Manganese Range**: Carefully balanced for strength and impact resistance - **Silicon Content**: Enhanced deoxidation for improved internal soundness - **Restricted Impurities**: Limited sulfur and phosphorus for better toughness --- #### **3. Physical & Mechanical Properties** **Mechanical Properties:** | Property | Value | |---|---| | **Tensile Strength** | 400-490 MPa (58-71 ksi) | | **Yield Strength (min.)** | 230 MPa (33 ksi) | | **Elongation in 2" (min.)** | 21% | | **Elongation in 8" (min.)** | 23% | **Impact Toughness Properties:** - **Charpy V-Notch Test Temperature**: 70°F (21°C) - **Minimum Impact Energy**: 20 ft-lbf (27 J) **Physical Properties:** - **Density**: 7.85 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity**: 200 GPa (29,000 ksi) - **Poisson's Ratio**: 0.29 - **Thermal Conductivity**: 51.9 W/m·K - **Coefficient of Thermal Expansion**: 11.7 × 10⁻⁶/°C --- #### **4. Product Applications** **Structural Construction:** - Building frames and supports - Bridge components - Industrial plant structures - Seismic-resistant construction **Heavy Equipment:** - Construction machinery components - Mining equipment parts - Material handling structures - Crane and hoist components **Transportation Infrastructure:** - Bridge deck supports - Highway guard rail supports - Sign structure components - Traffic signal supports **Industrial Applications:** - Machinery base plates - Equipment support frames - Storage tank structures - Process plant components **Special Applications:** - Wind turbine tower sections - Transmission tower components - Marine structure elements - Agricultural equipment frames --- #### **5. Fabrication Characteristics** **Welding Performance:** - **Excellent Weldability**: All standard processes applicable - **Preheat Requirements**: Generally not required for thicknesses ≤ 1 inch - **Recommended Processes**: SMAW, GMAW, FCAW, SAW - **Filler Metals**: E60XX or E70XX series electrodes **Forming & Machining:** - **Good Formability**: Suitable for cold bending and forming - **Bend Radius**: Typically 1.5t for 90° bends - **Machinability**: Good (approximately 65% of B1112 steel) - **Shearing & Punching**: Excellent performance with standard equipment **Heat Treatment:** - Normally supplied in as-rolled condition - Stress relieving available when specified - Normalizing possible for enhanced properties **Impact Testing:** - Charpy V-Notch testing required - Multiple tests per plate as specified - Test temperature and energy values certified --- ### **Technical Summary** ASTM A573 Grade 58 represents a significant advancement in carbon steel plate technology, specifically engineered to provide improved toughness characteristics over conventional structural steels. While maintaining a yield strength comparable to Grade 36 steels, its enhanced impact properties make it particularly suitable for applications subject to dynamic loading, vibration, or moderate impact conditions. The controlled chemistry and manufacturing process ensure consistent mechanical properties and reliable performance in finished structures. The grade's excellent weldability and formability, combined with its certified toughness properties, make it an ideal choice for structural applications where reliability and safety are paramount. Its balanced combination of strength, toughness, and manufacturability has established ASTM A573 Grade 58 as a preferred material for critical structural components across multiple industries. -:- For detailed product information, please contact sales. -: ASTM A573 Steel, grade 58 Specification Dimensions Size： Diameter 20-1000 mm Length <4298 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 A573 Steel, grade 58 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A573 Steel, grade 58 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A573 Steel, grade 58 -:- For detailed product information, please contact sales. -:

Packing of ASTM A573 Steel, grade 58 -:- 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 769 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