ASTM A992 H-beams possess several notable characteristics. In terms of strength, they feature high yield and tensile strengths, with a typical yield strength of no less than 345 MPa.
ASTM A992 H-beams
This allows them to withstand substantial loads, making them suitable for large-scale building structures, bridges, and other heavy-duty engineering projects.
A992 H-beam (or wide flange beam) is a structural steel profile shaped like the letter "H" in cross-section. Its geometry provides excellent bending and load-bearing performance in both vertical and horizontal directions. The key dimensions are as follows:
H – Height (mm): The overall vertical dimension of the beam, measured from the top of the upper flange to the bottom of the lower flange. This determines the beam's bending capacity along the strong axis.
B – Breadth or Width (mm): The horizontal width of the flanges. A wider flange increases lateral stability and helps resist bending and shear forces.
t1 – Web Thickness (mm): The thickness of the vertical central section (the web) connecting the two flanges. The web resists shear forces and helps maintain the beam's overall stiffness.
t2 – Flange Thickness (mm): The thickness of the horizontal top and bottom flanges. Thicker flanges improve the beam's bending strength and the distribution of loads across the section.
Chemical Composition of ASTM A992 H-Beam
| Element | Max / Range (%) |
|---|---|
| Carbon (C) | 0.26 |
| Manganese (Mn) | 1.0 – 1.5 |
| Silicon (Si) | 0.40 |
| Sulfur (S) | 0.05 |
| Phosphorus (P) | 0.04 |
| Copper (Cu) | 0.20 |
| Nickel (Ni) | 0.40 |
| Chromium (Cr) | 0.40 |
| Molybdenum (Mo) | 0.15 |
Ensures high strength and toughness while meeting ASTM A992/A992M standards.
Physical & Mechanical Properties of ASTM A992 H-Beam
| Property | Value |
|---|---|
| Minimum Yield Strength (Fy) | 50 ksi (≈345 MPa) |
| Tensile Strength (Fu) | 65–100 ksi (≈448–690 MPa) |
| Elongation (L0=8") | ≥18% |
| Density | 7.85 g/cm³ |
| Elastic Modulus (E) | 29,000 ksi (≈200 GPa) |
| Shear Modulus (G) | ≈11,200 ksi (≈77 GPa) |
| Charpy Impact Temperature | -50 °F (≈-45 °C) |
Suitable for high-rise buildings, bridges, industrial plants, and heavy-load structural applications.
ASTM A992 H-Beam Size Chart(W-Shape Beams)
| Beam Designation | Height H (in / mm) | Flange Width B (in / mm) | Web Thickness t_w (in / mm) | Flange Thickness t_f (in / mm) | Weight (lb/ft / kg/m) |
|---|---|---|---|---|---|
| W8×10 | 8.11 / 206 | 4.06 / 103 | 0.23 / 6 | 0.31 / 8 | 10 / 14.9 |
| W8×13 | 8.03 / 204 | 4.00 / 102 | 0.31 / 8 | 0.41 / 10 | 13 / 19.3 |
| W10×12 | 10.06 / 256 | 4.06 / 103 | 0.26 / 7 | 0.36 / 9 | 12 / 17.9 |
| W10×15 | 10.04 / 255 | 4.02 / 102 | 0.31 / 8 | 0.41 / 10 | 15 / 22.3 |
| W12×14 | 12.22 / 311 | 6.50 / 165 | 0.26 / 7 | 0.38 / 10 | 14 / 20.9 |
| W12×16 | 12.16 / 309 | 6.49 / 165 | 0.28 / 7 | 0.41 / 10 | 16 / 23.8 |
| W14×22 | 14.02 / 356 | 10.02 / 254 | 0.42 / 11 | 0.62 / 16 | 22 / 32.9 |
| W14×26 | 13.95 / 354 | 9.98 / 253 | 0.48 / 12 | 0.68 / 17 | 26 / 38.9 |
| W16×26 | 15.95 / 405 | 10.02 / 254 | 0.48 / 12 | 0.70 / 18 | 26 / 38.9 |
| W16×31 | 15.90 / 404 | 9.97 / 253 | 0.53 / 13 | 0.77 / 20 | 31 / 46.4 |
| W18×35 | 17.96 / 456 | 11.02 / 280 | 0.48 / 12 | 0.81 / 21 | 35 / 52.4 |
| W18×40 | 17.92 / 455 | 11.00 / 279 | 0.53 / 13 | 0.88 / 22 | 40 / 59.9 |
| W24×55 | 23.87 / 606 | 12.01 / 305 | 0.74 / 19 | 1.00 / 25 | 55 / 82.4 |
| W24×68 | 23.75 / 603 | 12.00 / 305 | 0.84 / 21 | 1.12 / 28 | 68 / 101.9 |
| W30×90 | 30.01 / 762 | 12.01 / 305 | 0.84 / 21 | 1.50 / 38 | 90 / 134.9 |
| W36×150 | 36.01 / 914 | 12.01 / 305 | 1.25 / 32 | 2.25 / 57 | 150 / 224.8 |
| W44×731 | 44.00 / 1118 | 16.00 / 406 | 1.12 / 28 | 3.00 / 76 | 731 / 1092 |
What are the characteristics of A992 H-beam?
ASTM A992 American Standard H-Beam offers multiple performance advantages for modern construction and engineering projects:
1. High Strength:
The high strength of A992 H-beams allows for reduced steel usage, lowering the structure's self-weight and improving overall cost-efficiency.
2. Excellent Toughness:
A992 H-beams exhibit good toughness, maintaining strong impact resistance even in low-temperature environments. This makes them especially suitable for buildings and structures in cold regions, helping to prevent brittle fracture and enhance safety.
3. Superior Weldability:
The steel provides excellent weldability, suitable for various welding methods such as manual arc welding and gas-shielded welding. Good weldability ensures high-quality joints and improves the overall integrity and reliability of the structure.
4. Workability:
A992 H-beams are easy to cut, drill, bend, and process, meeting diverse design and construction requirements. High dimensional accuracy and surface quality help ensure precise installation and an aesthetically sound structure.
5. Corrosion Resistance:
With appropriate corrosion protection treatments, A992 H-beams can perform reliably in harsh environments, extending the service life of the structure.
These characteristics make ASTM A992 H-beams a commonly used and highly reliable material in the construction and engineering industries.
Need reliable, high-strength A992 metal steel beams for your project? Contact us today to get specifications, quotes, and customized solutions!
Contact now to get an A992 H Beam Quote
Q: What are the mechanical properties of A992 steel beams?
A: A992 H-Beams have a minimum yield strength of 345 MPa (50 ksi) and tensile strength ranging from 450 to 620 MPa (65–90 ksi). This high strength allows for smaller cross-sections, reducing structural weight while maintaining load-bearing capacity and stability.
Q: How is the weldability of A992 H-Beams?
A: A992 steel has a low carbon equivalent, which ensures excellent weldability. It can be welded using standard techniques such as SMAW, GMAW, and FCAW, with minimal preheating or post-weld heat treatment required, making it ideal for on-site construction.
Q: What makes A992 steel suitable for seismic or dynamic load applications?
A: The steel exhibits excellent toughness and ductility, allowing it to absorb and dissipate energy under dynamic or seismic loads. This reduces the risk of brittle failure and enhances structural safety in high-rise buildings, bridges, and industrial facilities.
Q: Can A992 H-Beams contribute to sustainable construction?
A: Yes, A992 steel is 100% recyclable, and its high strength allows for smaller structural sections, reducing material usage. Efficient manufacturing and construction, combined with a long service life, make it a sustainable choice for modern building projects.
Q: What is A992 steel equivalent to?
A: ASTM A992 is currently the most available steel type for structural wide-flange beams. The industry's technical institute describes the standard thus: "ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) is the preferred material specification for wide-flange shapes, having replaced ASTM A36 and A572 grade 50.
Q: What is the ultimate strength of A992 steel?
A: Tensile yield strength, 345 MPa (50 ksi); tensile ultimate strength, 450 MPa (65 ksi); strain to rupture (sometimes called elongation) in a 200-mm-long test specimen, 18%; strain to rupture in a 50-mm-long test specimen, 21%. ASTM A992 is currently the most available steel type for structural wide-flange beams.