Gnee Steel Co., Ltd. is your trusted manufacturer and supplier of ASTM A572 Gr.50 H-beams in China. We offer high-quality structural steel at competitive prices, with free samples and fast global delivery.
Key Advantages of Our A572 Gr.50 H-Beam
Superior Strength: Yield strength ≥345MPa (50ksi), ideal for heavy-duty structural applications.
Weight Efficiency: Optimized flange-to-web ratio (e.g., W16×36) allows for 20% lighter designs compared to ordinary carbon steel.
Excellent Weldability: Low carbon content (≤0.23%) and Nb-V micro-alloying improve welding performance (CEIIW ≤0.45%) and processing efficiency by 30%.
Cold-Region Ready: Refined grain (ASTM Grade 8) ensures impact energy ≥27J at -20℃, perfect for extreme environments.
Typical Applications of Our A572 Gr.50 H-Beam
- High-rise building core tubes and frames.
- Large-span industrial factory steel beams.
- Mining machinery frames and bridge main beams.
- Export steel structures requiring ASTM compliance (equivalent to Q355D).
A572 Gr.50 H-Beam
Technical Specifications of Our A572 Gr.50 H-Beam
1. Chemical Composition (ASTM A572 Standard)
Micro-alloying with Niobium (Nb 0.005-0.05%) and Vanadium (V 0.01-0.15%) for grain refinement.
| Grade | C (max%) | Mn (max%) | P (max%) | S (max%) | Si (max%) |
| Gr. 42 | 0.21 | 1.35 | 0.040 | 0.050 | 0.40 |
| Gr. 50 | 0.23 | 1.35 | 0.040 | 0.050 | 0.40 |
| Gr. 55 | 0.25 | 1.35 | 0.040 | 0.050 | 0.40 |
| Gr. 60/65 | 0.26 | 1.35 | 0.040 | 0.050 | 0.40 |
2. Mechanical Properties
| Grade | Yield Point (min MPa) | Tensile Strength (min MPa) | Elongation in 50mm (min %) |
| Gr. 42 | 290 | 415 | 24 |
| Gr. 50 | 345 | 450 | 21 |
| Gr. 55 | 380 | 485 | 20 |
| Gr. 60 | 415 | 520 | 18 |
Why Gnee Steel?
- Factory Direct Price: Cut out the middleman and save costs.
- Inventory & Customization: Comprehensive range of sizes (W-series, IPE, HEA, HEB).
- Fast Delivery: Located near major ports for efficient shipping.
- Third-Party Inspection: SGS, BV, and CE certificates supported.
Contact Us Now for the A572 Gr50 H Beam Latest Price List & Free Sample!
What is A572 GR 50 material?
A572 Grade 50 steel plate is a HSLA steel that is considered a workhorse grade of steel. Because of its strength, less material is needed to meet application requirements than with other grades of steel.
Is A572 grade 50 the same as A36?
Similar to A36, it utilizes carbon and manganese for strength, but it also includes additional alloys such as columbium or vanadium. These extra alloys boost its overall strength, making A572-50 typically priced at around 2.5% - 5% higher than A36.
What is A572 steel used for?
A572 steel finds wide applications in construction and manufacturing. Its high strength-to-weight ratio makes it ideal for structural applications like bridges, structural steel buildings, and highway components, where stability and load-bearing capacity are crucial.
What is the hardness of astm A572 gr50?
With its density, yield strength, and Brinell Hardness of 135, A572-50 is the preferred grade for many types of heavy-duty applications.
Is A572 grade 50 formable?
A572-50 steel is less formable than other grades of A572, but for the most part it has good formability, weldability, and machinability.