ASTM A572 Grade 50 H Beam is a high-strength low-alloy structural steel widely used in bridges, high-rise buildings, and heavy load-bearing frameworks. GNEE is a professional steel manufacturer and exporter, supplying ASTM A572 Grade 50 wide flange H beams with stable quality, mill test certificates, and global delivery capability.
ASTM A572 Grade 50 H Beam is designed for structural applications requiring higher strength than ASTM A36 while maintaining good weldability and fabrication performance. As a direct steel manufacturer and global exporter, GNEE supplies ASTM A572 Grade 50 H beams from stock and customized rolling, ensuring fast delivery and consistent quality.
Within the first production stage, strict chemical composition control and rolling processes are applied to guarantee uniform mechanical properties. Each shipment is supplied with EN 10204 3.1 mill test certificates, ensuring full traceability.
Chemical Composition of ASTM A572 Grade 50 Steel
ASTM A572 Grade 50 is a niobium-vanadium microalloyed steel. The controlled carbon content and microalloying system significantly improve strength and weldability.
Chemical Composition (Heat Analysis, %)
| Element | C | Mn | Si | P | S | Nb | V |
|---|---|---|---|---|---|---|---|
| Max / Range | ≤0.23 | ≤1.35 | ≤0.40 | ≤0.04 | ≤0.05 | 0.005–0.05 | 0.01–0.15 |
Remark:
The welding carbon equivalent (CEIIW) is typically ≤0.45%, suitable for welded and bolted structural connections.
Mechanical Properties of ASTM A572 Grade 50 H Beam
ASTM A572 Grade 50 wide flange beams provide an excellent strength-to-weight ratio, making them ideal for long-span and heavy-duty structures.
Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength | ≥345 MPa (50 ksi) |
| Tensile Strength | 450–600 MPa |
| Elongation | ≥18% |
| Impact Test | Available upon request |
| Delivery Condition | Hot Rolled / Normalized |
These properties allow designers to reduce structural weight while maintaining safety margins.
ASTM A572 Grade 50 H Beam Size Range & Dimensions
GNEE supplies ASTM A572 Grade 50 H beams in a wide range of standard and customized sizes.
Available Dimensions
| Item | Range |
|---|---|
| Flange Width | 100–400 mm |
| Web Thickness | 6–40 mm |
| Section Height | 150–900 mm |
| Length | 6 m / 9 m / 12 m / Cut to length |
| Thickness Range | 8–300 mm |
Example:
The W16×36 section features a flange width of approximately 177.5 mm, web thickness of 7.5 mm, and a section moment of inertia of about 448 in⁴, making it suitable for large-span lightweight structural designs.
Advantages of ASTM A572 Grade 50 Wide Flange H Beam
High yield strength compared with ASTM A36
Excellent weldability due to low carbon equivalent
Optimized flange-to-web ratio for structural efficiency
Reduced steel consumption and project cost
Suitable for bolted, riveted, and welded structures
Compared with ordinary carbon steel, ASTM A572 Grade 50 offers over 40% higher strength, improving structural efficiency and service life.
Applications of ASTM A572 Grade 50 H Beam
ASTM A572 Grade 50 H beams are widely used in bridge construction, where high load-bearing capacity and fatigue resistance are required.
They are commonly applied in high-rise building frameworks, including columns and main beams, providing reliable support for vertical and horizontal loads.
Industrial plants and warehouses benefit from A572 Grade 50 H beams due to their strength, durability, and ease of fabrication.
This material is also suitable for dynamically loaded structures such as crane main booms, mining machinery frames, and heavy equipment bases.
ASTM A572 Grade 50 H Beam vs Q355D & S355JR
ASTM A572 Grade 50 H beams show comparable mechanical performance to Chinese standard Q355D and European grade S355JR, making them suitable for international engineering and export projects.
Normalizing heat treatment can be applied to further improve low-temperature toughness, especially for cold-region applications.
Quality Control & Additional Services
GNEE provides full quality assurance and processing services for ASTM A572 Grade 50 H beams:
EN 10204 3.1 / 3.2 Mill Test Certificates
Ultrasonic Testing (UT) upon request
Cutting, drilling, punching, and welding
Shot blasting, priming, and hot-dip galvanizing
Export packing suitable for sea transportation
As a reliable manufacturer and exporter, GNEE supplies ASTM A572 Grade 50 H Beam with stable quality, competitive pricing, and global shipping support. Whether for bridges, buildings, or heavy machinery structures, our wide flange H beams meet strict international standards.
Contact us for the latest ASTM A572 Grade 50 H beam price list and technical support for your project.
Contact us for the latest ASTM A572 Grade 50 H-beam price list
What is astm A572 grade 50 steel?
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 stronger than A36?
The higher presence of strengthening alloys, such as manganese and silicon, in A572 plate grades give the material greater strength as compared to A36. This higher strength allows A572 steel to bear more weight and withstand greater forces without breaking or failing, which is crucial in structural applications.
Is A572 steel corrosion resistant?
A572 steel is typically used in structural applications due to its high strength, ductility, weldability and corrosion resistance.
What is equivalent to astm A572 Grade 50 material?
Which steel grades equivalent to astm a572 grade 50 ? Xinsteel Industrial suggest you using steel grades EN 10025-2 S355JR,DIN 17100 St50-2,GB/T 1591 Q345B or Q355B. These steel materials are all low alloy high strength for structural buildings.
What is the difference between astm A572 Grade 50 and s355?
ASTM A572 Grade 50 is commonly used in heavier construction applications requiring higher strength, while S355JR is versatile and widely used in various structural applications across Europe.