GNEE steel is specialized in supplying ASME SA517 steel plate in SA517 grade B. For more information of SA517 grade B steel plates, please check them in following:
|
Grade |
Thickness |
UTS (ksi) |
Elongation in 2" 1) |
Reduction in area for rectangle specimens 2) |
Reduction in area for round specimens 3) |
|---|---|---|---|---|---|
|
B |
0.188 - 1.250 |
115 - 135 |
16 |
35 |
|
Welding of SA517 Grade B shall be performed in accordance with the applicable welding code. Special welding consumables and welding procedures may be needed to meet specific requirements for a given application. Low hydrogen practices are strongly recommended, including the removal of surface moisture. SA517 Grade B may be susceptible to reheat cracking in the heat-affected zone of welds during stress relieving or postweld heat treatment.
As a premier ASTM SA517 Grade B pressure vessel plate manufacturer and global supplier, GNEE STEEL provides premium-grade steel solutions that meet the most demanding industrial requirements.
With over 18 years of expertise in the steel industry, our factory ensures that every plate is manufactured to precise standards, offering exceptional durability and safety for high-pressure environments.
Whether you are involved in petrochemical processing or heavy-duty tank fabrication, GNEE is your trusted partner for high-performance alloy steel.
What is ASTM SA517 Grade B Pressure Vessel Plate?
SA517 Grade B high-strength alloy steel plate offers exceptional high-temperature resistance and impact resistance, making it a core material for high-pressure, low-temperature, and highly corrosive environments.
It exhibits excellent weldability; the use of low-hydrogen welding consumables with matching strength is recommended. Preheating thick plates to 100–150°C prior to welding effectively suppresses the formation of weld cracks and ensures that the joint strength matches that of the base material.
Cutting performance is reliable, supporting flame, plasma, and laser cutting. The cut edges are smooth and burr-free with minimal thermal distortion, meeting the precision blanking requirements for high-pressure vessels and heavy-duty equipment.
Cold bending performance is excellent; plates with a thickness of ≤16 mm can be cold-bent along the rolling direction with a minimum bending radius of 6 times the plate thickness (R ≥ 6t).
After forming, there are no cracks or significant deformation, satisfying the processing requirements for complex components.
The sheet exhibits excellent flatness. After normalizing and tempering, internal stresses are uniformly distributed, with flatness controlled within ±1.2 mm/m, ensuring precision in subsequent assembly and structural stability.
Outstanding mechanical properties: hardness ranges from 220–280 HBW, yield strength ≥690 MPa, tensile strength ≥860 MPa, and excellent impact toughness. It maintains good structural integrity even at low temperatures of -40°C.
Widely used in critical load-bearing components such as high-pressure boilers, nuclear power equipment, deep-sea platforms, and large-scale pressure vessels, it effectively resists wear and corrosion under extreme operating conditions, significantly enhancing equipment safety and service life.
It represents a high-strength alloy solution characterized by high reliability and adaptability.
Chemical Composition of ASTM SA517 Grade B Pressure Vessel Plate
The chemical makeup of ASTM SA517 Grade B pressure vessel plate is meticulously controlled to ensure its high-strength characteristics. It typically includes alloying elements such as Boron, Chromium, and Molybdenum, which enhance the steel's hardenability and resistance to stress-corrosion cracking.
GNEE's production process utilizes vacuum degassing and advanced smelting techniques to maintain low impurity levels (Phosphorus and Sulfur), which is critical for maintaining weldability and toughness in pressure-bearing components.
Technical Parameter Table: Chemical & Mechanical Properties
| Chemical Elements (%) | ASTM SA517 Grade B | Mechanical Properties | Requirement |
| Carbon (C) | 0.15 - 0.21 | Yield Strength (MPa) | ≥ 690 |
| Manganese (Mn) | 0.70 - 1.00 | Tensile Strength (MPa) | 795 - 930 |
| Phosphorus (P) max | 0.025 | Elongation in 2" (%) | ≥ 16 |
| Sulfur (S) max | 0.025 | Reduction of Area (%) | ≥ 45 (for specific thk) |
| Chromium (Cr) | 0.40 - 0.65 | Hardness (HBW) | 235 - 293 (Typical) |
| Molybdenum (Mo) | 0.15 - 0.25 | Impact Test | As per project spec |
Mechanical Properties and Advantages of SA517 Grade B
The primary advantage of choosing ASTM SA517 Grade B pressure vessel plate is its remarkable yield strength (minimum 690 MPa). Compared to traditional pressure vessel steels, SA517 Grade B allows for:
- Weight Reduction: Because the steel is stronger, thinner plates can be used to withstand the same pressure, reducing the total weight of the vessel.
- Increased Payload: For mobile pressure vessels (such as transport tanks), reduced weight translates directly into higher transport capacity.
- Superior Toughness: The Q&T process gives the ASTM SA517 Grade B pressure vessel plate excellent notch toughness, making it safer for use in variable temperature environments.
- Excellent Weldability: Despite its high strength, the low carbon equivalent ensures that with proper pre-heating, the plate maintains structural integrity after welding.
Common Applications for ASTM SA517 Grade B Plates
Due to its high-strength nature, the ASTM SA517 Grade B pressure vessel plate is not used in general construction but is reserved for high-stress applications. GNEE frequently supplies this grade to the following industries:
- Petrochemical Industry: Fabrication of spherical storage tanks (Horton spheres) for LPG and ammonia.
- Power Generation: High-pressure steam drums and boiler components.
- Heavy Transportation: Manufacturing of high-pressure tankers for the transport of liquefied gases.
- Aerospace & Defense: High-pressure testing chambers and specialized structural supports.
- Mining & Construction: Wear-resistant components that also require high structural load-bearing capacity.
Comparison: ASTM SA517 Grade B vs. Other Grades
When evaluating the ASTM SA517 Grade B pressure vessel plate, it is often compared to other grades within the SA517 standard or the common SA516 series.
SA517 Grade B vs. SA517 Grade H/F: These grades have similar mechanical properties but differ in their alloying elements (e.g., Grade F contains Vanadium). Grade B is often the more economical choice for specific thickness ranges.
SA517 Grade B vs. SA516 Grade 70: While SA516-70 is the "industry standard" for boilers, SA517 Grade B offers nearly double the yield strength. If your vessel operates under extreme pressure, SA517 is the superior choice to minimize plate thickness.
Frequently Asked Questions About SA517 Grade B
What heat treatment is applied to SA517 Grade B?
All ASTM SA517 Grade B pressure vessel plates must be Quenched and Tempered (Q&T). This involves heating the plate to a high temperature, rapidly cooling it (quenching), and then reheating it to a lower temperature (tempering) to achieve the desired balance of strength and toughness.
What is SA 517 material?
SA 517 Gr 70 is a type of steel plate that is commonly used in high-pressure applications, such as boilers, pressure vessels, and heat exchangers.
What is A517 steel equivalent to?
US T-1 steel materials
ASTM A517 is equivalent to US T-1 steel materials. A517 steel is typically used in fusion welded boilers and other pressure vessels, while A514 steel is often used in welded bridges and other structures. A514 steel is also equivalent to US A709 HPS 100W steel.
What is the difference between A514 and A517?
ASTM A514 is a standard specification for high-yield-strength, Quenched and Tempered alloy steel plate for use in welded bridges and other structures. ASTM A517 covers high-strength quenched and tempered alloy steel plates intended for use in fusion welded boilers and other pressure vessels.
What is ASTM A517 Grade F mechanical properties?
ASTM A517 Grade F is a high-strength, quenched and tempered alloy steel plate intended for pressure vessel applications. A517 Grade F is available in thicknesses up to 2.5 in. and has a minimum yield strength of 100 ksi. ASTM A517 Grade F also has required Charpy V-notch impact property requirements.
What is SA 517 equivalent to?
A517 Gr. S and SA517 Gr. S are the same grade, ASTM A517/A517M is equivalent to ASME SA-517/SA-517M.
What is the difference between SA 516 and SA 517?
SA 517 Grade Q is used in high-pressure reactors, LNG storage, and nuclear vessels, offering up to 30% weight savings over SA 516 grades. Its high strength reduces material usage, and nickel content ensures low-temperature toughness, ideal for cryogenic applications.
What is ASTM A517 used for?
It is used for high-strength pressure vessels and heavy-duty structures.
What makes ASTM A517 special?
Its quenched and tempered condition provides very high strength and toughness.
Why Choose GNEE for Your ASTM SA517 Grade B Plate?
When you source ASTM SA517 Grade B pressure vessel plate from GNEE, you are working with a manufacturer that prioritizes quality and transparency.
- Global Certifications: We comply with ASTM, ASME, ISO, and CE standards.
- In-House Processing: We offer precision CNC cutting, beveling, and rolling services to provide you with semi-finished components.
- Strict Testing: From Ultrasonic Testing (UT) to Charpy V-Notch impact testing, we ensure every plate is defect-free.
- Export Expertise: We have successfully exported high-strength alloy plates to over 60 countries, including the USA, UAE, Saudi Arabia, and Brazil.
Conclusion: Request Your ASTM SA517 Grade B Quote Today
The ASTM SA517 Grade B pressure vessel plate is the ultimate choice for high-pressure applications requiring maximum strength and minimum weight. As a specialized manufacturer, GNEE STEEL ensures that you receive only the highest quality materials, backed by comprehensive technical support and competitive factory pricing.
Don't compromise on the safety of your pressure vessel projects. Partner with GNEE for your next order of ASTM SA517 Grade B pressure vessel plate and experience the difference that professional steel manufacturing makes.
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Our company has 18 years of export experience and trades with more than 150 countries. Please contact us if you have any questions.If you need more stock steel plates in pressure vessel steel plate, please contact us.
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