Gnee Steel (Tianjin) Co., Ltd. is one of the most professional sm490 hot rolled section steel h beam manufacturers and suppliers in China, also supports customized service. If you're going to buy sm490 hot rolled section steel h beam made in China, welcome to get free sample from our factory. Quality products and low price are available.
SM490 Hot Rolled Section Steel H Beam
SM490 H-shaped steel (JIS G3106 standard), "SM" means structural steel for welded structures, "490" means minimum tensile strength of 490 MPa, and "H" means H-section optimized for high-load applications.
The material type of SM490 h section steel is carbon steel with controlled carbon content (C≤0.20%) and low alloy additions, balancing strength, weldability and ductility.
Mechanical properties of SM490 h shaped steel beam
Tensile strength: 570–700 MPa (exceeds the nominal 490 MPa requirement).
Yield strength: ≥355 MPa (thickness ≤16 mm).
Decreases with increasing thickness (e.g., ≥285 MPa for 150–200 mm).
Elongation: ≥17% (thinner sections) to ≥23% (thicker sections), ensuring ductility under stress.
Impact toughness: ≥27 J at -20°C (for cryogenic environments).
Manufacturing and processing
Production: Hot rolling with controlled cooling to refine the microstructure.
Heat treatment: Normalizing or tempering to optimize the strength-ductility balance; quenching (e.g. ice water) to meet special hardness requirements.
Surface treatment: Hot-dip galvanizing (e.g. SM490YB) for marine and corrosive environments.
Advantages of SM490 steel sections
High strength-to-weight ratio: Suitable for long-span structures and dynamic loads.
Weldability: Low carbon content, excellent compatibility with arc welding and other techniques.
Corrosion resistance: Galvanized variants (e.g. SM490YB) provide extended service life in harsh environments.
| Model Number |
Q235B/C/D Q345B/C/D/E Q390B/C/D/E Q420B/C/D/E Q460/C/D/E Q500/C/D/E SS400 SM490A/B SN400A/B SN490B S235JR/J0 S275JR/J0/J2 S355JR/J0/J2 S355K2 S450J0 S355M/L S460M S355J0WP/J2WP S355J0W/J2W/K2W |
| Application | Industry/Chemical Equipment |
| Welding Line Type | Welding |
| Processing Service | Bending, Punching, Cutting, Moulding |
| Length | 6000mm 9000mm 12000mm or Customized |
| Technique | Hot Rolled Cold Rolled |
| Payment terms | L/C T/T (30%DEPOSIT) |
| Process method | Standard |
GNEE Steel H Beam Steel Manufacturer
GNEE Steel was established in 2008, our main products are section steel, angle steel, flat steel, wear-resistant steel, etc. We have established long-term cooperative relations with well-known steel mills and are happy to provide you with the best prices and product suggestions. You are welcome to visit our company.
