A517GrE is a high-strength alloy steel plate primarily used in pressure vessel and boiler manufacturing. It has excellent toughness, weldability, and resistance to high temperatures and pressure, complying with ASTM standards.
Chemical Requirements
| Elements | Grade E % |
|---|---|
| Carbon | |
| Heat analysis | 0.12-0.20 |
| Product analysis | 0.10-0.22 |
| Manganese | |
| Heat analysis | 0.40-0.70 |
| Product analysis | 0.35-0.78 |
| Phosphorus, max | 0.025 |
| Sulfur, max | 0.025 |
| Silicon | |
| Heat analysis | 0.10-0.40 |
| Product analysis | 0.08-0.45 |
| Nickel | |
| Heat analysis | – |
| Product analysis | – |
| Chromium | |
| Heat analysis | 1.40-2.00 |
| Product analysis | 1.34-2.06 |
| Molybdenum | |
| Heat analysis | 0.40-0.60 |
Tensile Requirements
| 2.50 in. [65 mm] and Under | Over 2.50 to 6 in. [65 to 150 mm] | |
|---|---|---|
| Tensile strength | 115-135 [795-930] | 105-135 [725-930] |
| Yield strength, min, ksi [MPa] | 100 [690] | 90 [620] |
| Elongation in 2 in. [50 mm], min, % | 16 | 14 |
| Reduction of area, min, %: | ||
| Rectangular specimens | 35 | – |
| Round specimens | 45 | 45 |
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.
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What is the impact toughness of A517GrE?
A517GrE has excellent impact toughness, typically ≥27 J at -20°C (-4°F). This ensures it can resist brittle fracture in low-temperature environments.
What are the surface quality requirements for A517GrE plates?
A517GrE plates must have a clean surface without cracks, scratches, pits, or other defects that could affect performance. Minor defects can be repaired if they meet standard specifications.
What is the thickness range of A517GrE plates commonly supplied?
The common thickness range of A517GrE plates is 6-200 mm. Custom thicknesses can be supplied based on specific project requirements, subject to manufacturing feasibility.
What is the hardness of A517GrE?
The hardness of A517GrE is typically ≤235 HB (Brinell Hardness). This hardness level balances strength and toughness, facilitating machining and welding operations.
Can A517GrE be used in low-temperature environments?
Yes, A517GrE is suitable for low-temperature environments due to its good low-temperature impact toughness. It can work stably at temperatures as low as -20°C (-4°F) without brittle failure.
What machining processes is A517GrE suitable for?
A517GrE is suitable for various machining processes, including turning, milling, drilling, and cutting. Proper cutting tools and parameters are recommended to ensure machining efficiency and surface quality.
What is the difference between A517GrE and A516Gr70?
A517GrE is a high-strength alloy steel, while A516Gr70 is a carbon steel. A517GrE has higher tensile strength and toughness, suitable for higher pressure/temperature applications, while A516Gr70 is for general pressure vessels.
How to store A517GrE plates properly?
A517GrE plates should be stored in a dry, well-ventilated area to avoid moisture and corrosion. They should be placed on wooden pallets away from the ground and protected from direct sunlight.
What testing methods are used for A517GrE?
Common testing methods for A517GrE include tensile testing, yield strength testing, impact testing (Charpy V-notch), hardness testing, and non-destructive testing (NDT) such as ultrasonic testing.
Is A517GrE corrosion-resistant?
A517GrE has moderate corrosion resistance in general environments. For harsh corrosive environments (e.g., marine, chemical), additional anti-corrosion treatments such as painting or galvanizing are recommended.