SA514 Grade F is a high-yield strength, quenched and tempered alloy steel plate known for its exceptional strength (min 100 ksi yield), toughness, and good weldability, used in heavy-duty structural applications like construction equipment, truck frames, and crane booms, featuring specific alloying elements for enhanced performance and available in various thicknesses.
Key Characteristics
Type: High-Strength Low-Alloy (HSLA) Quenched and Tempered Steel Plate.
Yield Strength: Minimum 100 ksi (690 MPa) for plates up to 2.5 inches thick.
Tensile Strength: Typically 110-130 ksi (760-895 MPa).
Toughness: Excellent low-temperature toughness, often with supplemental Charpy V-notch testing.
Weldability: Good, suitable for demanding structural applications.
Alloying Elements: Contains Nickel, Chromium, Molybdenum, Vanadium, and Copper for strength and properties.
Common Applications
Construction Equipment (cranes, earth-movers)
Transport Trailers & Heavy Vehicle Frames
Bridge Structural Members
Mobile Aerial Work Platforms (Man-lifts)
Agricultural Equipment
Availability & Standards
Governed by ASTM A514/ASME SA514 specifications, with Grade F being one of several options.
Supplied as plates, often in thicknesses from around 0.185" up to 2.5" (or more depending on thickness), with wider and longer dimensions available.
Chemical composition of Heat analysis for SA514 Grade F quenched and tempered steel plate (Max %)
|
Steel Grade |
The Main Elements in rolling SA514Gr.F high strength steel plate |
|||||||
|
C |
Si |
Mn |
P |
S |
N |
B |
||
|
SA514GrF |
0.10-0.20 |
0.15-0.35 |
0.60-1.00 |
0.035 |
0.035 |
0.0005-0.0006 |
||
|
Cr |
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
|
|
0.40-0.65 |
0.40-0.60 |
0.15-0.50 |
- |
0.70-1.00 |
- |
0.03-0.08 |
- |
|
Available Dimensions
Hide/Show specific columns Edit
|
Grade |
Product type |
Thickness |
Width |
Length |
|---|---|---|---|---|
|
Grade F |
Plate |
0.185 - 2.50 |
60 - 131.9 |
73 - 590 |
Mechanical Properties
Tensile Properties: Tensile testing is performed in the transverse direction according to ASTM A6 requirements. The tensile property and hardness requirements are tabulated below:
Hide/Show specific columns Edit
|
Grade |
Product type |
Thickness |
Yield strength |
Tensile strength |
Elongation in 2" |
Reduction of area 1) |
Reduction of area 2) |
Hardness 3) |
|---|---|---|---|---|---|---|---|---|
|
Grade F |
Plate |
0.185 - 0.750 |
100 |
110 - 130 |
16 |
35 |
- |
235 - 293 |
|
Grade F |
Plate |
0.751 - 2.50 |
100 |
110 - 130 |
16 |
35 |
45 |
- |
1) Reduction in area for 1.5 in. wide rectangular tension specimen.
2) Reduction in area for 0.5 in. round tension specimen.
3) For plates up to 0.375 in., a Brinell hardness test may be used instead of a tensile test for those plates not tensile tested in a 15 ton lot.
1. What is SA514 Grade F steel?
SA514 Grade F is a high-strength, quenched and tempered alloy steel plate used primarily in structural applications requiring extreme toughness and high yield strength, such as crane booms and mining equipment.
2. What is the yield strength of SA514 Grade F?
SA514 Grade F has a minimum yield strength of 100 ksi (690 MPa) for thicknesses up to 2.5 inches (63.5 mm). For thicker plates, the minimum yield strength decreases.
3. Is SA514 Grade F weldable?
Yes, SA514 Grade F can be welded, but it requires strict control procedures due to its high hardenability. Preheating, low-hydrogen electrodes, and controlled heat input are mandatory to prevent hydrogen-induced cracking and maintain properties in the heat-affected zone (HAZ).
4. What is SA514 Grade F used for?
It is used in highly stressed structural components like crane booms, truck frames for heavy haulers, mining shovel arms, wind turbine towers (high-stress sections), and support structures in military vehicles and heavy machinery.
5. What is the difference between SA514 and AR500 steel?
SA514 Grade F is a through-hardened, quenched and tempered structural steel designed for load-bearing components. AR500 is an abrasion-resistant steel with a hard, wear-resistant surface, primarily used for liners in mining and material handling, not for primary structural support.
6. What is the chemical composition of SA514 Grade F?
Its typical composition includes Carbon (~0.15%), Manganese (~0.95%), Silicon (~0.55%), Chromium (~0.85%), Molybdenum (~0.55%), Vanadium (~0.08%), and Boron (0.001-0.005%) to achieve its high strength and hardenability.
7. What is the hardness of SA514 Grade F?
The typical Brinell hardness range for SA514 Grade F is 235-293 HBW (approximately 22-30 HRC). This balances high strength with good toughness.
8. Can SA514 Grade F be machined?
Yes, but with difficulty. It is a very hard, strong steel that requires robust machinery, rigid setups, appropriate cutting tools (grade and geometry), ample cooling, and lower speeds/feeds compared to mild steels.
9. What is the equivalent of SA514 Grade F in Europe?
There is no direct, identical European equivalent. The closest grades in terms of high strength and quenched & tempered condition are S690QL (EN 10025-6) or possibly Hardox 600 for wear applications, though their chemistries and exact properties differ.
10. How does SA514 Grade F compare to T1 steel (A514)?
SA514 Grade F is T1 steel. "A514" is the ASTM designation for structural steel, and "SA514" is the ASME code designation for the same material. Grade F is one of the specific sub-grades under this specification.
Full specification and details are available on request. The above information is provided for guidance purposes only. For specific design requirements please contact our technical sales staff.
