ASTM A514 Steel Seamless tube, grade D

ASTM A514 Steel Seamless tube, grade D, plate thickness ≤ 19 mm Product Information -:- For detailed product information, please contact sales. -: ASTM A514 Steel Seamless tube, grade D, plate thickness ≤ 19 mm Synonyms -:- For detailed product information, please contact sales. -:

ASTM A514 Steel, grade D, plate thickness ≤ 19 mm Product Information -:- For detailed product information, please contact sales. -: ### **Technical Data Sheet: ASTM A514 Steel, Grade D (Plate Thickness ≤ 19 mm)** --- #### **1. Product Overview** ASTM A514 Grade D is a **high-strength quenched and tempered alloy steel plate** offering enhanced performance characteristics for critical structural applications. With plate thickness limited to 19 mm (0.75 inches) for Grade D, this material provides an optimal balance of high strength, excellent toughness, and good weldability, making it suitable for demanding applications in construction, mining, and heavy equipment industries where reliability and performance are paramount. --- #### **2. International Standards & Equivalents** | Standard Organization | Designation | |-----------------------|-------------| | **ASTM International** | **A514 Grade D (t ≤ 19 mm)** | | **UNS Number** | **K11578** | | **ISO International Standard** | **ISO 4950** | | **European Norm (EN)** | **EN 10025-6 S690Q** | | **Japanese (JIS)** | **SHY685** | | **Chinese GB** | **GB/T 16270 Q690** | --- #### **3. Chemical Composition (Weight %)** | Element | Composition (%) | |---------|-----------------| | **Carbon (C)** | 0.12 - 0.21 | | **Manganese (Mn)** | 0.70 - 1.00 | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.035 max | | **Silicon (Si)** | 0.20 - 0.35 | | **Nickel (Ni)** | 0.25 - 0.50 | | **Chromium (Cr)** | 0.40 - 0.65 | | **Molybdenum (Mo)** | 0.40 - 0.60 | | **Vanadium (V)** | 0.03 - 0.08 | | **Boron (B)** | 0.001 - 0.005 | | **Copper (Cu)** | 0.15 - 0.50 | | **Iron (Fe)** | Balance | **Key Composition Features:** - **Optimized Carbon Range**: 0.12-0.21% for balanced strength and weldability - **Enhanced Molybdenum**: 0.40-0.60% for improved hardenability and strength - **Boron Treatment**: Essential for achieving high strength properties - **Balanced Alloy System**: Designed for consistent through-thickness properties --- #### **4. Mechanical Properties (Thickness ≤ 19 mm)** **Tensile Properties:** - **Tensile Strength**: 760 - 895 MPa (110 - 130 ksi) - **Yield Strength**: 690 MPa (100 ksi) min - **Elongation in 50 mm (2 in)**: 18% min - **Reduction of Area**: 40% min **Impact Properties:** - **Charpy V-Notch Impact**: 54 J (40 ft-lb) min at -18°C (0°F) - **Fracture Toughness**: Excellent for high-strength applications - **Through-Thickness Ductility**: Good Z-direction performance **Hardness Properties:** - **Brinell Hardness**: 235 - 293 HB - **Typical Hardness**: 260 HB --- #### **5. Physical Properties** | Property | Value | |----------|-------| | **Density** | 7.85 g/cm³ (0.284 lb/in³) | | **Modulus of Elasticity** | 200 GPa (29,000 ksi) | | **Shear Modulus** | 77 GPa (11,200 ksi) | | **Poisson's Ratio** | 0.29 | | **Thermal Conductivity** | 43.0 W/m·K at 20°C | | **Coefficient of Thermal Expansion** | 11.4 × 10⁻⁶ /K (20-100°C) | | **Specific Heat Capacity** | 465 J/kg·K | --- #### **6. Product Applications** **Heavy Equipment and Construction:** - **Crane Components**: Boom sections, jib arms, and structural supports - **Excavator Parts**: Stick arms, boom components, and attachment points - **Mining Equipment**: Shovel dippers, truck frames, and structural members - **Construction Machinery**: High-stress components in heavy equipment **Transportation and Infrastructure:** - **Bridge Components**: Fracture-critical members and connection plates - **Off-highway Vehicles**: Chassis frames and structural components - **Transportation Equipment**: Heavy haul trailer components - **Infrastructure Projects**: Critical structural elements in special structures **Industrial Applications:** - **Pressure Vessels**: High-pressure applications requiring strength - **Industrial Machinery**: High-stress machine frames and components - **Material Handling**: Heavy-duty conveyor supports and structures - **Energy Sector**: Components in power generation equipment --- #### **7. Manufacturing & Fabrication** **Heat Treatment Process:** - **Austenitizing**: 870-925°C (1600-1700°F) - **Quenching**: Controlled cooling for martensitic transformation - **Tempering**: 540-665°C (1000-1230°F) for optimal properties - **Final Microstructure**: Tempered martensite with fine grain structure **Welding Procedures:** - **Pre-heat Requirement**: 150-200°C (300-400°F) minimum - **Interpass Control**: Maximum 230°C (450°F) - **Post-Weld Heat Treatment**: Recommended at 595-665°C (1100-1230°F) - **Filler Metal Selection**: AWS E11018-M or equivalent high-strength electrodes - **Welding Processes**: SMAW, GMAW, FCAW with proper procedure control **Fabrication Considerations:** - **Thermal Cutting**: Requires controlled procedures to avoid HAZ issues - **Cold Forming**: Limited capability due to high strength - **Machining**: Requires appropriate tooling and cutting parameters - **Quality Control**: Comprehensive inspection and testing recommended --- #### **8. Quality Assurance & Testing** **Standard Testing Protocol:** - Complete chemical analysis for each heat - Multiple tension tests from different locations - Charpy V-notch impact tests at specified temperature - Hardness testing across plate surfaces - Ultrasonic examination for internal quality **Quality Verification:** - Through-thickness testing when specified - Microstructural examination - Hydrogen content analysis for welding applications - Dimensional and visual inspection --- #### **9. Corrosion Performance** - **Atmospheric Corrosion**: Standard protection required - **Coating Compatibility**: Excellent with proper surface preparation - **Protection Systems**: High-performance coatings recommended - **Maintenance**: Regular inspection and coating maintenance --- #### **10. Available Product Forms** **Plate Specifications:** - **Thickness Range**: Up to 19 mm (0.75 inches) for Grade D - **Width Range**: Up to 3600 mm (142 inches) - **Length Range**: Up to 18000 mm (710 inches) - **Surface Conditions**: Mill finish, blast cleaned, or pre-primed --- #### **11. Technical Specifications** **Dimensional Tolerances:** - **Thickness Tolerance**: ±0.25 mm to ±0.7 mm - **Width Tolerance**: +20 mm, -0 mm - **Length Tolerance**: +40 mm, -0 mm - **Flatness**: 12 mm/m maximum **Engineering Properties:** - **Fatigue Strength**: Excellent for dynamic loading - **Fracture Toughness**: Good crack resistance - **Weldability**: Good with proper procedures - **Structural Efficiency**: High strength-to-weight ratio --- **Technical Notes:** - Grade D provides minimum 690 MPa yield strength with good toughness - Suitable for highly stressed structural applications - Requires strict adherence to welding procedures - Must comply with AWS D1.1 and relevant structural codes - Professional engineering design required for all applications *This information is for reference purposes. For complete technical requirements, consult the latest ASTM A514 standard and applicable structural design codes. Always verify material properties with certified mill test reports and employ qualified engineering professionals for design and fabrication.* -:- For detailed product information, please contact sales. -: ASTM A514 Steel, grade D, plate thickness ≤ 19 mm Specification Dimensions Size： Diameter 20-1000 mm Length <4267 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 A514 Steel, grade D, plate thickness ≤ 19 mm Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A514 Steel Seamless tube, grade D, plate thickness ≤ 19 mm -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A514 Steel Seamless tube, grade D, plate thickness ≤ 19 mm -:- For detailed product information, please contact sales. -:

Packing of ASTM A514 Steel Seamless tube, grade D, plate thickness ≤ 19 mm -:- 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 738 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