Q345 Carbon Equal Angle Steel

Q345 Carbon Equal Angle Steel

‌Name‌: Q345 hot rolled steel angle (Chinese Standard ‌GB/T 1591‌)
‌Type‌: Equilateral high-strength low-alloy (HSLA) structural steel angle.
Conforms to ‌GB/T 1591‌ (high-strength low-alloy structural steel) and ‌ASTM A572 Gr.50‌ (international equivalent standard).
‌Process‌: hot rolling, thermomechanical controlled processing (TMCP) or normalizing.
‌Surface treatment‌: oxide scale (default), galvanizing or painting (optional).
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Description
Technical Parameters

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

 

Equal angle steel

 

 

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.

 

Angles steel

 

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