ASTM A517 Low Alloy Steel Sheet,Plate, Grade A

ASTM A517 Low Alloy Steel Sheet/Plate, Grade A Product Information -:- For detailed product information, please contact sales. -: ASTM A517 Low Alloy Steel Sheet/Plate, Grade A Synonyms -:- For detailed product information, please contact sales. -:

ASTM A517 Low Alloy Steel, Grade A Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A517 Low Alloy Steel, Grade A** #### **1. Overview** ASTM A517 Grade A is a high-strength quenched and tempered alloy steel plate designed for demanding applications requiring exceptional mechanical properties. As part of the A517 specification covering "pressure vessel quality" high-strength alloy steels, Grade A offers superior strength-to-weight ratio combined with good toughness, making it suitable for critical pressure-containing components and structural applications. #### **2. Key International Standards** - **Primary Standard:** **ASTM A517/A517M** - Standard Specification for Pressure Vessel Plates, Alloy Steel, High-Strength, Quenched and Tempered - **Governing Standard:** **ASTM A20/A20M** - Standard Specification for General Requirements for Steel Plates for Pressure Vessels - **International Equivalents:** - **EN 10028-6:** S690Q/S890Q (European high-strength steel equivalents) - **JIS G3128:** SHY685 (Japanese high-strength steel) - **GB/T 16270:** Q690D/Q890D (Chinese high-strength steel equivalents) #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | Carbon (C) | 0.15-0.21 | | Manganese (Mn) | 0.70-1.00 | | Silicon (Si) | 0.15-0.35 | | Chromium (Cr) | 0.50-0.80 | | Molybdenum (Mo) | 0.18-0.28 | | Vanadium (V) | 0.03-0.08 | | Boron (B) | 0.001-0.003 | | Phosphorus (P), max | 0.035 | | Sulfur (S), max | 0.035 | *Note: The boron addition significantly enhances hardenability while the balanced alloy package provides the high-strength characteristics.* #### **4. Mechanical & Physical Properties** **Mechanical Properties (Quenched & Tempered):** - **Tensile Strength:** 795-930 MPa (115-135 ksi) - **Yield Strength (min):** 690 MPa (100 ksi) - **Elongation in 2" (min):** 16% - **Reduction of Area (min):** 35% - **Hardness (typical):** 235-293 HB **Impact Toughness Properties:** - **Charpy V-Notch Impact:** 41 J @ -45°C (30 ft-lb @ -50°F) min **Physical Properties:** - **Density:** 7.85 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity:** 205 GPa (29,700 ksi) - **Thermal Conductivity:** 42.0 W/m·K (at 100°C) - **Coefficient of Thermal Expansion:** 11.4 × 10⁻⁶/K (20-100°C) #### **5. Product Applications** - **High-Pressure Vessels:** Reactors, separators, pressure containers - **Power Generation:** Hydroelectric penstocks, pressure conduits - **Heavy Equipment:** Crane booms, excavator components - **Mining Industry:** Shovel dippers, mining truck bodies - **Structural Applications:** Bridges, offshore structures - **Transportation:** Heavy vehicle frames, trailer components #### **6. Key Characteristics & Advantages** - **Exceptional Strength:** Minimum yield strength of 690 MPa (100 ksi) - **Excellent Toughness:** Good impact resistance at low temperatures - **Superior Fatigue Resistance:** Excellent performance under cyclic loading - **Good Weldability:** Can be welded with proper procedures and consumables - **Weight Reduction:** Enables significant weight savings in structural designs #### **7. Fabrication Considerations** - **Welding:** Requires low-hydrogen processes with pre-heating (150-230°C) - **Forming:** Good formability when proper techniques are employed - **Heat Treatment:** Supplied in quenched and tempered condition - **Machining:** Requires appropriate tooling and cutting parameters #### **8. Quality Assurance** - **Testing:** Comprehensive mechanical and impact testing required - **Inspection:** Ultrasonic testing per supplementary requirements - **Certification:** Full traceability with mill test certificates - **Hardness Verification:** Required to ensure proper heat treatment ASTM A517 Grade A provides engineers with a premium high-strength alloy steel solution for the most demanding pressure vessel and structural applications where maximum strength, excellent toughness, and reliable performance are essential requirements in challenging service environments. -:- For detailed product information, please contact sales. -: ASTM A517 Low Alloy Steel, Grade A Specification Dimensions Size： Diameter 20-1000 mm Length <4407 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 A517 Low Alloy Steel, Grade A Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A517 Low Alloy Steel Sheet,Plate, Grade A -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A517 Low Alloy Steel Sheet,Plate, Grade A -:- For detailed product information, please contact sales. -:

Packing of ASTM A517 Low Alloy Steel Sheet/Plate, Grade A -:- 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 878 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