ASTM A36 A572 Carbon Steel for Structural Engineering Bridge Use H Beam
ASTM A36 H-beam has medium tensile strength and yield strength due to its low carbon content and no other alloying elements. A36 H-beam steel is a common material in construction and civil engineering due to its competitive low cost and good welding, forming and machining properties.
A572-50 H-beam is widely used in construction projects due to its higher strength per unit weight. With lower content of alloying elements such as niobium and vanadium, it excels in strength and atmospheric corrosion resistance, with a yield strength of up to 50,000 ksi.
Hot-dip galvanized carbon steel H-beam effectively protects the steel from weather and environmental corrosion. The amount of galvanizing can be customized according to your needs.
Comparison of the application of A36 and A572 H-beam in bridge structures
Specific application scenarios
Typical applications of A36
Main body of small and medium-sized bridges: such as steel beams, abutments and piers of urban river-crossing bridges, supporting daily vehicle loads and wind loads.
Accessory structures of transportation facilities: used for components with high requirements for lightness and economy, such as overpass ramp beams and pedestrian overpass trusses.
Core applications of A572
Main beam of long-span bridges: suitable for continuous beam bridges that need to cross rivers and canyons in highways or railway trunk lines. Its high bending resistance can reduce the number of bridge piers.
Key support nodes: used for tower anchorage sections of suspension bridges or cable-stayed bridges, compression chords of large truss bridges, and other parts with strict requirements on material strength.
Comprehensive performance comparison
Bearing capacity adaptation: A36 meets the requirements of conventional bridges (such as tensile strength ≥ 400MPa), while A572 (tensile strength ≥ 450MPa) is more suitable for bridge design under heavy-load traffic or complex geological conditions.
Construction efficiency: Both have standardized production characteristics and can be quickly assembled after prefabrication, reducing the on-site construction period.

GNEE Steel is an H-beam manufacturer, H-beam supplier and H-beam exporter. We are a company with 18 years of production experience and are committed to providing H-beams in various materials.
We can produce and supply structural steel according to your specific requirements. We can also produce and customize any type and size of steel beams according to your requirements.
If you have customized needs for profile steel, angle steel, channel steel, please contact us!
| All specifications products can be customized according to customer requirements | |
| Product Name | H beam |
| Size | 1.Web Width (H): 100-900mm 2.Flange Width (B): 100-300mm 3. Web Thickness (t1): 5-30mm 4. Flange Thickness (t2): 5-30mm |
| Length | 1m - 12m , or according to your reqquirements |
| Standard | GB ASTM, JIS, SUS, DIN, EN etc |
| Material | SS400,SS490,SS540,Q235B,S235JR,Q345B, S355JR, A36,S355JR,S355J2,S355J0,S355NL,S355ML,A572GR50,A992,S275JR etc. |
| Technique | Hot rolled |
| Application | Construction structure |
| Price Item | EXW ,FOB,CIF.etc |
| Packing | Export standard packing or according to customers' requirement |
| Supply Ability | Within10-15 workdays,25-30days when the quantity beyond 1000tons |

FAQ
Q: What is ASTM A36 steel used for?
A: ASTM A36 steel is a carbon structural steel used to make welded and bolted metal structures in industrial and civil construction, as well as bridge construction. ASTM A36 steel is also used to make general construction and mechanical engineering products and parts.
Q: What is the difference between ASTM A572 steel and A36 steel?
A: For projects that require more basic structural steel and are not intended for extreme conditions, A36 is usually sufficient. However, for projects that require higher strength, greater durability, and less weight, A572 is a better choice.
Q: What is the maximum temperature for ASTM A36?
A: A36 steel maintains its strength up to 650°F, making it ideal for welding and producing high-quality welded joints.

