Q345 Angle Steel 75x75mm

Q345 Angle Steel 75x75mm

This parameter table provides a detailed overview of the key parameters of Q345 Angle Steel 75x75mm, enabling users to understand its characteristics and make appropriate choices for different construction and engineering projects.

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Product details

Q345 Angle Steel 75x75mm is a premium low-alloy high-strength structural profile, engineered to deliver exceptional performance in demanding construction, industrial, and infrastructure applications. With its robust 75x75mm equal-leg design and advanced alloy composition, this angle steel combines superior load-bearing capacity with impressive workability, making it a top choice for projects requiring reliable strength and durability.

Parameter	Value/Description	Unit	Remarks
Material	Q345 (Low-Alloy High-Strength Structural Steel)	—	Chemical Composition: C ≤0.20%, Si ≤0.50%, Mn 1.00 – 1.60%, P ≤0.040%, S ≤0.040%, with trace amounts of other alloying elements
Section Size	75×75	mm	Equal-leg angle, both legs are 75mm
Thickness Options	5mm, 6mm, 8mm, 10mm	mm	Commonly available thicknesses
Weight per Meter	5.818 (for 5mm), 6.905 (for 6mm), 9.030 (for 8mm), 11.089 (for 10mm)	kg/m	Corresponding to different thicknesses
Length Range	6000 – 12000 (Customizable)	mm	Standard lengths available with the option to be cut to specific lengths
Cross-Sectional Area	7.412 (for 5mm), 8.797 (for 6mm), 11.503 (for 8mm), 14.096 (for 10mm)	cm²	Values vary based on the selected thickness
Yield Strength (Minimum)	≥345	MPa	Measured at room temperature
Tensile Strength	470 – 630	MPa	Range at room temperature
Elongation (δ5 Minimum)	≥22	%	At room temperature
Impact Toughness (Average)	≥34	J (for longitudinal specimens)	Under normal temperature impact testing conditions
Manufacturing Standard	GB/T 1591 – 2018	—	Complies with the relevant Chinese national standard for low-alloy high-strength structural steels
Surface Treatment Options	Mill finish (black), Hot-dip Galvanized, Painting	—	Mill finish is the original state; hot-dip galvanized for better corrosion resistance in outdoor environments; painting for various aesthetic and protection needs
Typical Applications	Structural frameworks in medium to heavy-duty buildings, bridge bracing, industrial machinery supports, high-load-bearing brackets, and as key components in infrastructure projects	—	Well-suited for applications requiring higher strength and durability