A517 Grade E is a high-strength quenched and tempered alloy steel plate designed for use in demanding structural applications where exceptional toughness and weldability are required. It is commonly specified for projects involving heavy machinery, pressure vessels, and components that must withstand extreme loading conditions and harsh environments. The steel achieves its properties through a controlled heat treatment process that refines its microstructure, resulting in a material that offers excellent resistance to fracture and reliable performance even at low temperatures. Its ability to maintain strength and ductility under stress makes it a preferred choice in industries such as construction, energy, and manufacturing, where safety and durability are critical considerations.
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A517 grade E Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
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A517 grade E |
0.10-0.22 |
0.08-0.45 |
0.35-0.78 |
0.035 |
0.035 |
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Cr |
Mo |
B |
Ti |
V |
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1.34-2.06 |
0.36-0.64 |
0.001-0.005 |
0.005-0.11 |
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Grade |
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A517 grade E Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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A517 grade E |
mm |
Min Mpa |
Mpa |
Min % |
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6-65 |
690 |
795-930 |
16% |
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65-150 |
620 |
725-930 |
14% |
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Processes Employed
Quenching and Tempering
A517GrE is produced using a quenching and tempering process. The steel is heated to a suitable temperature and then rapidly cooled in water or oil to form a hard, fine‑grained microstructure. Tempering at a lower temperature follows to improve toughness, reduce internal stress, and achieve the desired balance of strength and ductility.
Hot Rolling
The steel is hot rolled to achieve the required thickness and plate dimensions. Controlled rolling practices refine the grain structure and enhance mechanical properties such as strength and impact resistance.
Alloying and Melting
During melting, precise amounts of alloying elements are added to achieve the specified chemical composition. This ensures the steel has the necessary hardenability and toughness characteristics.
Ultrasonic and Mechanical Testing
After heat treatment, plates undergo rigorous inspection, including ultrasonic testing to detect internal flaws and mechanical testing to verify strength and toughness. This ensures compliance with industry standards and reliable performance in service.
applications
Heavy Machinery and Equipment
Used in mining machinery, large cranes, and heavy‑duty lifting systems that must withstand dynamic and impact loads during operation.
Pressure Vessels and Storage Tanks
Applied in the energy sector for pressure vessels, storage tanks, and related equipment requiring high strength and good toughness, especially in low‑temperature environments.
Bridges and Structural Construction
Utilized in the fabrication of bridges, building frames, and other structural components where reliable performance under heavy loads is essential.
Offshore and Marine Structures
Selected for offshore platforms, subsea equipment, and marine structures due to its ability to resist harsh environmental conditions and maintain structural integrity.
Transportation Industry
Used in the manufacturing of heavy trucks, specialized vehicles, and rail components where a combination of strength and reduced weight is required.
General Industrial Fabrication
Applied in various industrial machinery and equipment, including processing plants and power generation facilities, where durable and high‑performance steel is needed.
For more details about GNEE's steel products, contact us at beam@gneesteelgroup.com. We look forward to working with you.
What is the elongation requirement of A517GrE?
The minimum elongation of A517GrE is 18% (in 50 mm gauge length). This ensures good ductility, allowing the material to deform plastically before fracture under stress.
Can A517GrE be heat-treated?
Yes, A517GrE can be heat-treated, including quenching and tempering (Q&T), which enhances its strength and toughness. The standard heat treatment process is quenching followed by tempering to achieve the required properties.
What is the density of A517GrE?
The density of A517GrE is approximately 7.85 g/cm³, the same as most carbon and alloy steels. This density is used for weight calculation in engineering design and manufacturing.
What is the Poisson's ratio of A517GrE?
The Poisson's ratio of A517GrE is about 0.3 at room temperature. It represents the ratio of lateral strain to axial strain when the material is subjected to tensile or compressive stress.
Can A517GrE be used in offshore structures?
Yes, A517GrE is widely used in offshore structures such as oil platforms and offshore pipelines. Its high strength and toughness can withstand harsh marine environments and heavy loads.
What is the melting point of A517GrE?
The melting point of A517GrE ranges from 1450-1500°C (2642-2732°F). This high melting point ensures it can maintain structural stability at high service temperatures.
What are the dimensional tolerances of A517GrE plates?
The dimensional tolerances of A517GrE plates comply with ASTM A6/A6M standards, covering thickness, width, length, and flatness. Tolerances ensure the plates meet assembly requirements in engineering projects.
Is A517GrE suitable for boiler drum manufacturing?
Yes, A517GrE is suitable for boiler drum manufacturing. Its high pressure and temperature resistance, along with good weldability and toughness, meet the strict requirements of boiler drum operation.
What is the modulus of elasticity of A517GrE?
The modulus of elasticity of A517GrE is approximately 200 GPa at room temperature. It represents the material's stiffness and ability to resist elastic deformation under stress.
What certifications are required for A517GrE supply?
A517GrE supply typically requires certifications such as ASTM material certification (MTC), EN 10204 3.1/3.2, and non-destructive testing reports to verify material quality and compliance with standards.