ASTM A36 EN 10025 S275JR Q235 Steel Angle with Custom Equal or Unequal Angle

1．Product Overview

Steel angle bar is a widely used structural steel product for construction, machinery manufacturing, shipbuilding, bridge engineering, and vehicle chassis fabrication. It is available in both equal angle and unequal angle types to match different load-bearing and installation requirements.

Produced from mild steel grades such as Q235B, Q345B, ASTM A36, SS400, and S275JR, the product offers good weldability, stable forming

performance, and reliable structural support for industrial and civil engineering projects.

2．Technical Solution

The L-shaped section provides efficient reinforcement for frames, brackets, trusses, supports, and structural joints. Equal angle steel is suitable for symmetrical load distribution, while unequal angle steel is selected where different leg lengths are required for directional strength or connection design.

The product can be supplied in 6–12m lengths or customized lengths according to project drawings and fabrication requirements.

3．Specifications

Typical Sizes

4．Application

Steel angle bars are commonly used for mechanical manufacturing, steel structure fabrication, shipbuilding, bridge construction, automobile chassis, support frames, towers, warehouse structures, industrial platforms, and general construction reinforcement.

5．Processing

The product supports cutting, drilling, punching, welding, galvanizing, painting, and customized length processing.

Equal and unequal angle sections can be selected according to structural design and fabrication requirements.

6．Advantages

• Available in equal and unequal angle types
• Wide grade options for different structural requirements
• Good weldability and fabrication performance
• Suitable for cutting, drilling, welding, and surface treatment
• 6–12m standard length with customized length options
• Applicable to steel structure, bridge, shipbuilding, and machinery projects

7．How to Choose

• Choose equal angle steel for symmetrical structural support and general frame fabrication.
• Choose unequal angle steel when different leg dimensions are needed for connection design or directional load requirements.
• Choose Q235B, SS400, or ASTM A36 for general structural applications, and choose Q345B or higher-strength grades for heavier load-bearing requirements.

8．FAQ

Q1．What is the difference between equal and unequal steel angle
Equal angle has two legs with the same width, while unequal angle has two legs with different widths.

Q2．What grades are available
Q235B, Q345B, Q420B/C, Q460C, SS400, SS540, S275JR, S275J0, and S275J2 are available.

Q3．Can customized lengths be supplied
Yes. Standard length is 6–12m, and customized length can be supplied according to project requirements.

Q4．What applications are suitable for steel angle bar
It is used in steel structures, shipbuilding, bridges, machinery manufacturing, automobile chassis, frames, and supports.

Q5．Can surface treatment be arranged
Yes. Galvanizing, painting, cutting, drilling, and welding processing can be arranged according to order requirements.