Q345 Carbon Equal Angle Steel
Q345 Carbon Steel Angle Chemical Properties
Main components of Q345 angle iron
Carbon (C): ≤0.20%
Manganese (Mn): ≤1.70%
Silicon (Si): ≤0.55%
Phosphorus (P): ≤0.035%
Sulfur (S): ≤0.035%
Mechanical properties of Q345 steel angle iron
Yield strength (σs): ≥345 MPa
Tensile strength (σb): 470–630 MPa
Elongation (δ): ≥21% (standard specimen)
Impact toughness: ≥34 J at -20°C (Charpy V-notch test)
Hardness: 130–180 HB (Brinell NMness)
Q345 Angle Steel Beam Features
Main features of Q345 hot rolled steel angle
High strength-to-weight ratio: Very suitable for load-bearing structures.
Weldability: Preheating required for thickness >24 mm; compatible with SMAW, GMAW and SAW methods.
Ductility: Excellent cold forming properties.
Weathering resistance: Better than carbon steel; optional coating for harsh environments.
Applications of Q345 angle iron
Construction: High-rise buildings, bridges, industrial plants.
Infrastructure: Transmission towers, offshore platforms, crane beams.
Transportation: Shipbuilding, railcar frames, truck trailers.
Machinery: Heavy equipment brackets, hydraulic system brackets.
Q345 Hot Rolled Angle Specifications And Dimensions
| Product name | Equal Angle Steel 6m/12m |
| Length | 6M/9M/10M/12M, OR Cut as your demands |
| Other processing service | Hot dip Galvanized, Pre-galvanized, Color Painting, Coated, Cutting, Bending, Punching as long as you can tell us your requirement. |
| Material | S235JR S275JR S355JR/JO/J2 A36 A572GR50 A572GR60 A992 SS/SM/STPG400 SS/SM/STPG490 SS/SM/STPG540 Q235 Q345 Q355 |
| Usage | Mechanical & Manufacture, Steel strcuture, Shipbuilding, Bridging, Automobile Chassis. |
| Packing | tied up with steel strips and wrapped with water proof paper |
| Delivery Time | Delivered within 3-7 days after the receipt of deposit |
| Leg Length (L) [mm] | Thickness (t) [mm] | Weight per Meter [kg/m] |
|---|---|---|
| 30 x 30 | 4 | 1.78 |
| 40 x 40 | 5 | 2.96 |
| 50 x 50 | 6 | 4.52 |
| 63 x 63 | 8 | 7.71 |
| 75 x 75 | 8 | 9.98 |
| 80 x 80 | 10 | 13.89 |
| 100 x 100 | 10 | 15.96 |
| 125 x 125 | 12 | 23.70 |
| 150 x 150 | 14 | 34.20 |
| 200 x 200 | 16 | 62.14 |

GNEE Steel Angle Steel Manufacturer
GNEE is a supplier of power tower angle steel with 18 years of production experience. It has a steel company, a new energy company, a hot-rolled steel company, and a metal company. It has a total of more than 200 employees and an annual output of 4.5 million tons of various special steels and 5 million tons of various metal deep-processing products.
The products we provide are strictly produced in accordance with standards, have passed quality certification, can provide quality certificates, and accept third-party testing.




















