ASTM A553 Alloy Steel Wire, Grade I

ASTM A553 Alloy Steel Wire, Grade I Product Information -:- For detailed product information, please contact sales. -: ASTM A553 Alloy Steel Wire, Grade I Synonyms -:- For detailed product information, please contact sales. -:

ASTM A553 Alloy Steel, Grade I Product Information -:- For detailed product information, please contact sales. -: ### **ASTM A553 Grade I: High-Strength Quenched and Tempered Alloy Steel Plate** #### **1. Overview** ASTM A553 Grade I is a **high-strength quenched and tempered alloy steel plate** specifically designed for **pressure vessel applications** requiring excellent notch toughness at cryogenic temperatures. This specification covers 8% and 9% nickel steel plates primarily used for **cryogenic service** where temperatures can reach as low as -320°F (-196°C). Grade I represents the standard strength level within this specification, providing an optimal balance of strength, toughness, and fabricability for liquefied gas storage and handling equipment. #### **2. Chemical Composition** The chemical composition is carefully controlled for cryogenic performance: | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.13 max | | Manganese (Mn) | 0.90 max | | Phosphorus (P) | 0.035 max | | Sulfur (S) | 0.035 max | | Silicon (Si) | 0.15 - 0.40 | | Nickel (Ni) | 8.00 - 9.00 | | Chromium (Cr) | 0.25 max | | Molybdenum (Mo) | 0.12 max | **Key Composition Features:** - **High Nickel Content (8.00-9.00%)**: Provides exceptional toughness at cryogenic temperatures - **Low Carbon Content**: Ensures excellent weldability and notch toughness - **Controlled Manganese**: Optimizes strength and toughness balance - **Low Residual Elements**: Minimizes impairment of cryogenic properties #### **3. Physical & Mechanical Properties** **Mechanical Properties (Quenched & Tempered Condition):** | Property | Requirement | |----------|-------------| | **Tensile Strength** | 100 - 120 ksi (690 - 830 MPa) | | **Yield Strength** | 75 ksi min (515 MPa min) | | **Elongation in 2 inches** | 20% min | | **Charpy V-Notch Impact** | 25 ft-lb min at -320°F (-196°C) | **Exceptional Cryogenic Performance:** - **Outstanding Low-Temperature Toughness**: Maintains excellent impact properties at liquid nitrogen temperatures - **Stable Microstructure**: Retains austenitic characteristics at cryogenic conditions - **Good Fatigue Resistance**: Suitable for cyclic loading in cryogenic service - **Excellent Fracture Toughness**: Superior resistance to brittle fracture **Physical Properties (Typical):** - **Density**: 0.287 lb/in³ (7,950 kg/m³) - **Modulus of Elasticity**: 28,500 ksi (197 GPa) at room temperature - **Thermal Expansion Coefficient**: 5.8 × 10⁻⁶/°F (10.4 × 10⁻⁶/°C) at -320°F to 68°F - **Thermal Conductivity**: 12.5 W/m·K at -320°F (-196°C) - **Magnetic Permeability**: Typically less than 1.05 at cryogenic temperatures #### **4. Product Applications** Grade I is specifically designed for cryogenic applications: **Liquefied Gas Storage:** - LNG (Liquefied Natural Gas) storage tanks - Liquid nitrogen and oxygen containers - Liquid argon storage vessels - Cryogenic liquid transport tanks **Industrial and Process:** - Cryogenic process vessels - Low-temperature heat exchangers - Industrial gas production equipment - Superconducting system components **Energy and Research:** - Cryogenic energy storage systems - Research laboratory equipment - Space simulation chambers - Advanced scientific instruments #### **5. International Standards & Equivalents** | Region/Country | Standard | Equivalent Grade | Notes | |----------------|----------|------------------|-------| | **International** | **ISO 9328-4** | X8Ni9 | Similar 9% nickel steel | | **Europe** | **EN 10028-4** | X8Ni9 | Cryogenic nickel steel | | **Japan** | **JIS G3127** | SL9N590 | 9% nickel steel equivalent | | **Germany** | **DIN 17280** | X8Ni9 | Cryogenic application steel | **Grade Comparison within A553:** | Parameter | Grade I | Grade II | |-----------|---------|----------| | **Nickel Content** | 8.00-9.00% | 8.50-9.50% | | **Yield Strength Minimum** | 75 ksi | 85 ksi | | **Tensile Strength Range** | 100-120 ksi | 110-130 ksi | | **Primary Applications** | Standard Cryogenic | Enhanced Cryogenic | #### **6. Fabrication & Quality Assurance** **Welding and Fabrication:** - **Pre-heat requirement**: Generally not required due to low carbon content - **Post-weld heat treatment**: Optional, typically not specified - **Welding consumables**: Nickel-based electrodes recommended - **Welding processes**: All standard processes applicable with proper procedures **Heat Treatment:** - **Double Normalizing and Tempering**: Standard heat treatment - **Normalizing temperature**: 1475-1525°F (802-829°C) - **Tempering temperature**: 1050-1150°F (566-621°C) - **Quenching**: Water quenching may be specified for enhanced properties **Quality Control Requirements:** - **Impact testing**: Mandatory at -320°F (-196°C) - **Tension tests**: From each heat treatment charge - **Ultrasonic examination**: Typically required for pressure vessel applications - **Hardness testing**: Usually 200-240 HBW --- **Technical Advantages:** - **Excellent toughness** at cryogenic temperatures down to -320°F (-196°C) - **Good weldability** without pre-heat requirements - **High strength-to-weight ratio** - **Proven reliability** in cryogenic service **Design Considerations:** - **ASME Section VIII** design rules applicable - **Cryogenic service** capability to -320°F (-196°C) - **Fracture mechanics analysis** recommended for critical applications - **Thermal stress analysis** essential for design **Service Limitations:** - **Minimum design temperature**: -320°F (-196°C) - **Maximum service temperature**: 500°F (260°C) - **Corrosion resistance**: Limited in aggressive environments - **Fabrication control**: Proper procedures essential for maintaining cryogenic properties **Disclaimer:** This technical information is for reference purposes only. For cryogenic pressure vessel applications, consult the latest ASTM A553 specification and applicable ASME Code requirements. Material selection and fabrication must be approved by qualified engineers experienced in cryogenic applications and must comply with all relevant regulatory standards and quality assurance protocols. -:- For detailed product information, please contact sales. -: ASTM A553 Alloy Steel, Grade I Specification Dimensions Size： Diameter 20-1000 mm Length <4460 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 A553 Alloy Steel, Grade I Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A553 Alloy Steel Wire, Grade I -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A553 Alloy Steel Wire, Grade I -:- For detailed product information, please contact sales. -:

Packing of ASTM A553 Alloy Steel Wire, Grade I -:- 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 Wire 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 931 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