ASTM A612 Carbon Steel Sheet,Plate

ASTM A612 Carbon Steel Sheet/Plate Product Information -:- For detailed product information, please contact sales. -: ASTM A612 Carbon Steel Sheet/Plate Synonyms -:- For detailed product information, please contact sales. -:

ASTM A612 Carbon Steel Product Information -:- For detailed product information, please contact sales. -: ### **ASTM A612 Carbon Steel: High Strength Pressure Vessel Steel Plate** #### **1. Overview** ASTM A612 is a specification for **high-strength carbon steel plates** primarily used in **pressure vessel applications**, particularly for **moderate and lower temperature service**. This steel is designed to provide improved toughness and strength for welded pressure vessels where reliability under pressure is critical. The specification covers plates in the as-rolled or normalized condition, with thicknesses up to 12 inches (300 mm), making it suitable for large pressure containment structures. #### **2. Chemical Composition** The chemical composition is carefully controlled for optimal strength and toughness: | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.25 - 0.30 | | Manganese (Mn) | 0.85 - 1.20 | | Phosphorus (P) | 0.035 max | | Sulfur (S) | 0.035 max | | Silicon (Si) | 0.15 - 0.40 | | Copper (Cu) | 0.35 max (when specified) | **Key Composition Features:** - **Controlled Carbon Range**: Balances strength and weldability - **Enhanced Manganese Content**: Improves strength and hardenability - **Silicon Addition**: Provides deoxidation and strength enhancement - **Low Impurity Levels**: Ensures good toughness properties #### **3. Physical & Mechanical Properties** **Mechanical Properties (Normalized Condition):** | Property | Requirement | |----------|-------------| | **Tensile Strength** | 70 - 90 ksi (485 - 620 MPa) | | **Yield Strength** | 45 ksi min (310 MPa min) | | **Elongation in 2 inches** | 23% min | | **Charpy V-Notch Impact** | 15 ft-lb min at -50°F (-45°C) | **Enhanced Performance Characteristics:** - **Good Low-Temperature Toughness**: Suitable for moderate low-temperature service - **Excellent Weldability**: Proper procedures yield sound welds - **Pressure Containment Capability**: Reliable performance under internal pressure - **Stable Mechanical Properties**: Consistent behavior in service conditions **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 - **Coefficient of Thermal Expansion**: 6.5 × 10⁻⁶/°F (11.7 × 10⁻⁶/°C) - **Thermal Conductivity**: 42.5 W/m·K at 212°F (100°C) #### **4. Product Applications** A612 steel is primarily used in pressure vessel and structural applications: **Pressure Vessel Construction:** - Storage tanks for gases and liquids - Process vessels in chemical plants - Heat exchangers and condensers - Industrial boilers and pressure containers **Power Generation:** - Power plant pressure vessels - Steam drums and headers - Energy storage systems - Power generation equipment **Petrochemical Industry:** - Refinery process vessels - Oil and gas storage tanks - Chemical processing equipment - Petrochemical plant components #### **5. International Standards & Equivalents** | Region/Country | Standard | Equivalent Grade | Notes | |----------------|----------|------------------|-------| | **International** | **ISO 9328-2** | P295GH | Pressure vessel steel equivalent | | **Europe** | **EN 10028-2** | P295GH | Pressure vessel steel plate | | **Japan** | **JIS G3115** | SV295 | Pressure vessel steel | | **China** | **GB 6654** | 16MnR | Pressure vessel steel plate | **Heat Treatment Options:** | Condition | Tensile Strength | Yield Strength | Impact Properties | |-----------|------------------|----------------|-------------------| | **As-Rolled** | 70-90 ksi | 45 ksi min | Standard | | **Normalized** | 70-90 ksi | 45 ksi min | Enhanced | #### **6. Fabrication & Quality Assurance** **Welding and Fabrication:** - **Pre-heat Requirements**: 200-400°F (95-205°C) depending on thickness - **Post-Weld Heat Treatment**: Often required for stress relief - **Welding Processes**: SMAW, GMAW, SAW with proper procedures - **Consumables**: Low-hydrogen electrodes recommended **Heat Treatment Options:** - **Normalizing**: Improves toughness and uniformity - **Stress Relieving**: Reduces residual stresses - **As-Rolled**: For less demanding applications **Quality Control Requirements:** - **Impact Testing**: Required at specified temperatures - **Tension Tests**: From each heat treatment charge - **Ultrasonic Testing**: Available as supplementary requirement - **Chemical Analysis**: For each heat of steel --- **Technical Advantages:** - **Cost-effective** solution for pressure vessel applications - **Good combination** of strength and toughness - **Reliable performance** in pressure containment - **Established fabrication** history in industry **Design Considerations:** - **ASME Section VIII** design rules applicable - **Minimum design metal temperature** considerations - **Proper joint design** for pressure containment - **Environmental factors** affecting corrosion performance **Service Limitations:** - **Minimum service temperature**: -50°F (-45°C) - **Maximum thickness**: 12 inches (300 mm) - **Not recommended** for severe corrosion service - **Temperature limitations** for long-term service **Disclaimer:** This technical information is for reference purposes only. For pressure vessel applications, consult the latest ASTM A612 specification and applicable ASME Code requirements. Material selection and fabrication must be approved by qualified engineers and comply with all relevant pressure vessel codes and safety regulations. Proper welding procedures and quality control measures are essential for pressure containment applications. -:- For detailed product information, please contact sales. -: ASTM A612 Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4487 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 A612 Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A612 Carbon Steel Sheet,Plate -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A612 Carbon Steel Sheet,Plate -:- For detailed product information, please contact sales. -:

Packing of ASTM A612 Carbon Steel Sheet/Plate -:- 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 958 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