ASTM A537 Carbon Steel Sheet,Plate, Class 1

ASTM A537 Carbon Steel Sheet/Plate, Class 1 Product Information -:- For detailed product information, please contact sales. -: ASTM A537 Carbon Steel Sheet/Plate, Class 1 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A537 Carbon Steel, Class 1 Product Information -:- For detailed product information, please contact sales. -: ### **ASTM A537 Class 1: Heat-Treated Carbon-Manganese-Silicon Steel Plate** #### **1. Overview** ASTM A537 Class 1 is a **heat-treated carbon-manganese-silicon steel plate** specifically designed for **pressure vessel applications** requiring improved notch toughness and higher strength than provided by as-rolled carbon steels. This class covers plates that are typically supplied in the **normalized heat treatment condition**, offering an excellent balance of strength, toughness, and weldability for moderate and low-temperature service. #### **2. Chemical Composition** The chemical composition is optimized for normalized heat treatment: | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.24 max | | Manganese (Mn) | 0.70 - 1.60 | | Phosphorus (P) | 0.035 max | | Sulfur (S) | 0.035 max | | Silicon (Si) | 0.15 - 0.50 | | Copper (Cu) | 0.35 max (when specified) | **Key Composition Features:** - **Moderate Carbon Content**: Provides good strength while maintaining excellent weldability - **Manganese Enhancement**: Improves hardenability and strength-toughness relationship - **Silicon Control**: Ensures proper deoxidation and strength development - **Low Residual Elements**: Promote better impact toughness and fabricability #### **3. Physical & Mechanical Properties** **Mechanical Properties (Normalized Condition):** | Property | Requirement | |----------|-------------| | **Tensile Strength** | 65 - 85 ksi (450 - 585 MPa) | | **Yield Strength** | 45 ksi min (310 MPa min) | | **Elongation in 2 inches** | 24% min | | **Charpy V-Notch Impact** | 20 ft-lb min at -60°F (-51°C) | **Thickness Limitations:** - **Maximum thickness**: 2½ inches (65 mm) for normalized treatment - **Thickness effect**: Properties may vary with section size - **Testing requirements**: Based on nominal thickness **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 Conductivity**: 45 W/m·K at 100°C - **Thermal Expansion**: 6.5 × 10⁻⁶/°F (11.7 × 10⁻⁶/°C) #### **4. Product Applications** ASTM A537 Class 1 is widely specified for various pressure vessel and structural applications: **Pressure Vessel Applications:** - Storage tanks for petroleum products - Chemical process vessels - Heat exchangers and boiler components - Industrial pressure containers **Structural Components:** - Building and bridge construction - Offshore structure components - Heavy equipment manufacturing - Mining and material handling systems **Low-Temperature Service:** - Refrigerated storage tanks - Cold climate structural applications - Low-temperature process equipment - Cryogenic service components #### **5. International Standards & Equivalents** | Region/Country | Standard | Equivalent Grade | Notes | |----------------|----------|------------------|-------| | **International** | **ISO 9328-2** | P355NH | Similar normalized steel grade | | **Europe** | **EN 10028-3** | P355NH | Normalized fine grain steel | | **Japan** | **JIS G3115** | SPV 355 | Pressure vessel steel equivalent | | **China** | **GB 19189** | 14Cr1MoR | Similar application scope | **Class Comparison within A537:** | Parameter | Class 1 | Class 2 | |-----------|---------|---------| | **Heat Treatment** | Normalized | Normalized or Q&T | | **Yield Strength** | 45 ksi min | 50 ksi min | | **Tensile Strength** | 65-85 ksi | 70-90 ksi | | **Max Thickness** | 2½ inches | 6 inches | #### **6. Fabrication & Quality Assurance** **Welding and Fabrication:** - **Excellent weldability** with conventional processes - **Pre-heat recommended** for thicknesses over 1 inch (25 mm) - **Low-hydrogen practice** advised for critical applications - **Post-weld heat treatment** optional based on design requirements **Heat Treatment:** - **Normalizing temperature**: 1550-1650°F (845-900°C) - **Grain refinement**: Achieved through controlled normalizing - **Property consistency**: Ensured through proper heat treatment - **Certification**: Heat treatment records required **Quality Control:** - **Impact testing**: Required at specified temperatures - **Tension tests**: From each heat and heat treatment charge - **Chemical analysis**: For each melt of steel - **Supplementary testing**: Available as specified --- **Technical Advantages:** - **Improved toughness** over as-rolled carbon steels - **Good strength-to-weight ratio** - **Excellent fabricability** and formability - **Cost-effective** solution for pressure vessel applications **Design Considerations:** - **Minimum service temperature** limitations - **Heat treatment effects** on final properties - **Fabrication sequence** planning - **Quality verification** through testing **Application Guidelines:** - Suitable for **ASME Section VIII** pressure vessel construction - Appropriate for **moderate low-temperature service** - Compatible with **various welding processes** - Adaptable to **multiple fabrication methods** **Disclaimer:** This information is for technical reference only. For pressure vessel applications, consult the latest ASTM A537 specification and applicable construction codes. Material selection and fabrication procedures should be approved by qualified engineers and comply with all relevant regulatory requirements. -:- For detailed product information, please contact sales. -: ASTM A537 Carbon Steel, Class 1 Specification Dimensions Size： Diameter 20-1000 mm Length <4436 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 A537 Carbon Steel, Class 1 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A537 Carbon Steel Sheet,Plate, Class 1 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A537 Carbon Steel Sheet,Plate, Class 1 -:- For detailed product information, please contact sales. -:

Packing of ASTM A537 Carbon Steel Sheet/Plate, Class 1 -:- 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 Sheet/Plate 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 907 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