ASTM A517 Low Alloy Steel Wire, Grade T

ASTM A517 Low Alloy Steel Wire, Grade T Product Information -:- For detailed product information, please contact sales. -: ASTM A517 Low Alloy Steel Wire, Grade T Synonyms -:- For detailed product information, please contact sales. -:

ASTM A517 Low Alloy Steel, Grade T Product Information -:- For detailed product information, please contact sales. -: ### **ASTM A517 Grade T: High-Strength Quenched and Tempered Alloy Steel** #### **1. Overview** ASTM A517 is a standard specification for high-strength, quenched and tempered alloy steel plates primarily used in pressure vessels and other critical applications. **Grade T** represents a specialized chemistry within this family, designed to provide an optimal balance of ultra-high strength, excellent toughness, and enhanced hardenability. This grade achieves its superior mechanical properties through precise chemical composition control and rigorous heat treatment processes (quenching and tempering), making it particularly suitable for applications requiring reliable performance in demanding service conditions, especially in thicker sections. #### **2. Chemical Composition** The chemical composition of ASTM A517 Grade T is carefully balanced to provide excellent hardenability and mechanical properties. The following table outlines the required percentages (by heat analysis): | Element | Composition (%) | | :--- | :--- | | Carbon (C) | 0.20 - 0.30 | | Manganese (Mn) | 0.70 - 1.00 | | Phosphorus (P) | 0.035 max | | Sulfur (S) | 0.035 max | | Silicon (Si) | 0.15 - 0.35 | | Nickel (Ni) | 0.70 - 1.00 | | Chromium (Cr) | 0.40 - 0.65 | | Molybdenum (Mo) | 0.40 - 0.60 | | Boron (B) | 0.0015 - 0.0050 | | Vanadium (V) | 0.02 - 0.10 | **Key Alloying Roles:** * **Carbon & Manganese:** Provide fundamental strength and hardenability * **Nickel:** Enhances toughness and hardenability, particularly at low temperatures * **Chromium & Molybdenum:** Improve hardenability, strength, and tempering resistance; molybdenum specifically helps prevent temper embrittlement * **Boron:** A powerful hardenability intensifier that allows for high strength with leaner overall alloy content * **Vanadium:** Contributes to grain refinement and precipitation strengthening through vanadium carbide formation #### **3. Physical & Mechanical Properties** ASTM A517 Grade T is supplied in the quenched and tempered condition. The following mechanical properties are typically required for plates up to 2.5 inches (63.5 mm) in thickness: | Property | Requirement | | :--- | :--- | | **Tensile Strength** | 115 - 135 ksi (790 - 930 MPa) | | **Yield Strength (min)** | 100 ksi (690 MPa) | | **Elongation in 2-in (50 mm) (min)** | 16% | | **Reduction of Area (min)** | 50% | | **Hardness (Brinell)** | Typically 235 - 293 HBW | **Impact Toughness:** * **Charpy V-Notch (CVN) Impact Test:** Required at **-50°F (-46°C)** * **Minimum Average Value:** 15 ft-lb (20 J) for longitudinal specimens **Physical Properties (Typical Values):** * **Density:** 0.284 lb/in³ (7850 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) from 68-212°F (20-100°C) #### **4. Product Applications** The combination of high strength and excellent toughness makes ASTM A517 Grade T suitable for various demanding applications: * **Pressure Vessels:** High-pressure storage tanks, reactors, and heat exchangers in petrochemical and chemical processing industries * **Structural Components:** Heavy construction equipment, crane booms, and support structures * **Mining Equipment:** Shovel components, drill rigs, and other high-stress mining applications * **Power Generation Equipment:** Turbine components and pressure-containing parts * **Transportation Equipment:** Critical components for heavy-duty vehicles and trailers #### **5. International Standards & Equivalents** ASTM A517 Grade T has functional equivalents in other international standards: | Standard | Equivalent Grade | Notes | | :--- | :--- | :--- | | **ASTM A517** | **Grade T** | Base specification | | **EN 10028-6** | **S690Q** | European equivalent with similar strength characteristics | | **ISO 4950-3** | **EQ 70** | International standard for high-yield strength steels | | **JIS G 3128** | **SHY 685** | Japanese high-yield strength steel plate | **Important Fabrication Considerations:** * **Welding:** Requires strict control including pre-heating and low-hydrogen processes * **Post-Weld Heat Treatment:** Typically required for stress relief * **Quality Assurance:** Charpy V-notch testing mandatory to verify impact toughness * **Section Size Limitations:** Mechanical properties specified for specific thickness ranges --- **Disclaimer:** This information is for reference purposes only. For critical applications, consult the latest ASTM A517 standard and qualified materials engineers. Actual properties may vary by manufacturer and specific heat treatment processes. -:- For detailed product information, please contact sales. -: ASTM A517 Low Alloy Steel, Grade T Specification Dimensions Size： Diameter 20-1000 mm Length <4418 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 T Properties -:- For detailed product information, please contact sales. -:

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

Packing of ASTM A517 Low Alloy Steel Wire, Grade T -:- 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 889 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