ASTM A517 HSLA Steel Seamless tube

ASTM A517 HSLA Steel Seamless tube Product Information -:- For detailed product information, please contact sales. -: ASTM A517 HSLA Steel Seamless tube Synonyms -:- For detailed product information, please contact sales. -:

ASTM A517 HSLA Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A517 High-Strength Low-Alloy (HSLA) Steel** **ASTM A517** is a specification for high-strength, quenched and tempered alloy steel plates intended primarily for use in welded pressure vessels and other critical applications requiring exceptional mechanical properties. Commonly known as "T-1" type steel (a trademark of ArcelorMittal), this grade offers one of the highest strength-to-weight ratios among commercially available structural steels, with a minimum yield strength of **100 ksi (690 MPa)**. Its excellent combination of high strength, toughness, and weldability makes it suitable for demanding applications where weight reduction and reliability are paramount. --- #### **1. International Standards & Grades** **Primary Standard:** **ASTM A517/A517M** - "Standard Specification for Pressure Vessel Plates, Alloy Steel, High-Strength, Quenched and Tempered" **Important Note:** ASTM A517 contains multiple grades (A, B, E, F, H, etc.), each with slightly different chemical compositions optimized for specific manufacturing processes or service conditions. The most common grade is **A517 Grade B**. **International Equivalents:** - **EN 10025-6**: S690Q/Q1 - **JIS G3115**: SPV 490 (for pressure vessel use) - **ISO 9328-2**: P690Q/Q1 --- #### **2. Chemical Composition** The following table outlines the chemical composition for the most common grade, **A517 Grade B**: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.10-0.20 | | Manganese (Mn) | 0.60-1.00 | | Phosphorus (P) | 0.035 | | Sulfur (S) | 0.040 | | Silicon (Si) | 0.15-0.30 | | Chromium (Cr) | 0.50-0.80 | | Molybdenum (Mo) | 0.18-0.28 | | Vanadium (V) | 0.03-0.08 | | Boron (B) | 0.001-0.003 | **Key Composition Features:** - **Low Carbon Content**: Ensures good weldability and prevents cold cracking - **Boron Addition**: Significantly increases hardenability, enabling high strength in thicker sections - **Molybdenum & Chromium**: Enhance strength and temper resistance at elevated temperatures - **Vanadium**: Provides secondary precipitation strengthening and grain refinement --- #### **3. Physical & Mechanical Properties** **Typical Mechanical Properties (for thicknesses up to 50 mm):** | Property | Value | |---|---| | **Tensile Strength** | 760-895 MPa (110-130 ksi) | | **Yield Strength (min.)** | 690 MPa (100 ksi) | | **Elongation in 2" (min.)** | 16% | | **Charpy V-Notch Impact (min.)** | 41 J (30 ft-lbf) at -50°F (-46°C) | | **Hardness (Brinell)** | 235-293 HBW | **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**: ~42 W/m·K at 100°C --- #### **4. Product Applications** **Pressure Vessel Industry:** - High-pressure storage tanks and vessels - Chemical processing equipment - Nuclear and fossil fuel power plant components - Hydraulic accumulators and receivers **Heavy Equipment & Machinery:** - Mining shovel booms and dipper sticks - Excavator frames and boom arms - Crane structural components - Heavy-duty truck frames **Structural Applications:** - Bridge components (particularly movable bridges) - Offshore platform modules - Penstocks and hydraulic structures **Special Applications:** - Military vehicle armor components - Aerospace ground support equipment - High-performance automotive frames --- #### **5. Fabrication Characteristics** **Welding:** - **Classification**: Weldable with proper procedures - **Preheat Requirement**: 150-230°C (300-450°F) depending on thickness - **Recommended Processes**: SMAW, GMAW, FCAW (low-hydrogen only) - **Post-Weld Heat Treatment**: Often required to relieve stresses and restore HAZ properties **Forming & Machining:** - **Cold Forming**: Limited capability; hot forming preferred for complex shapes - **Machinability**: Poor (approximately 35% of 1212 steel); requires carbide tooling - **Cutting Methods**: Plasma, laser, and waterjet cutting recommended **Heat Treatment:** - Supplied in quenched and tempered condition - Maximum service temperature: ~455°C (850°F) - Post-forming heat treatment may be required --- ### **Technical Summary** ASTM A517 represents a premium class of high-strength, quenched and tempered alloy steels that deliver exceptional mechanical properties for critical applications. While often compared to ASTM A514 (structural application focus), A517 is specifically optimized for pressure vessel service where reliability under cyclic loading and aggressive environments is essential. The material's excellent strength-to-weight ratio enables significant weight reduction in mobile equipment and transportation applications. However, its full potential can only be realized through strict adherence to proper fabrication procedures, particularly regarding welding and heat treatment protocols. The grade's proven performance in demanding applications has made it a preferred choice for engineers designing critical components where failure is not an option. -:- For detailed product information, please contact sales. -: ASTM A517 HSLA Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4290 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 HSLA Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A517 HSLA Steel Seamless tube -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A517 HSLA Steel Seamless tube -:- For detailed product information, please contact sales. -:

Packing of ASTM A517 HSLA Steel Seamless tube -:- 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 Seamless tube 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 761 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