Q235B Hot Rolled Standard Packing Unqual Angle Steel with Hole

Feb 27, 2026

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Product Overview
This Q235B Hot Rolled Unequal Angle Steel is a precision-engineered structural profile designed for versatility and ease of fabrication in industrial and construction applications. Featuring pre-punched holes along its length, this product eliminates the need for on-site drilling, significantly reducing installation time and labor costs while ensuring accurate bolt alignment. Manufactured from prime Q235B carbon steel, it offers reliable mechanical properties and excellent weldability for demanding environments.

Material Properties & Manufacturing Standards
Produced in accordance with GB/T700 standards, Q235B is a high-quality carbon structural steel known for its balanced chemical composition and consistent mechanical performance. The "B" grade designation specifies guaranteed impact toughness at ambient temperature, ensuring the material maintains structural integrity under dynamic loading conditions. The hot rolling process refines the grain structure of the steel, enhancing its overall strength and ductility while producing a scaled surface finish that provides an excellent base for protective coatings.

Geometric Design: Unequal Angle Configuration
Unlike equal angles, the unequal leg geometry of this profile-featuring two legs of different widths-offers a superior strength-to-weight ratio in a specific orientation. This makes it particularly effective for applications where primary loads are directed along the longer leg. The asymmetric design allows engineers to optimize material usage without compromising structural capacity, especially in longer spans where bending resistance is critical.

Pre-Punched Hole Feature
The factory-punched perforations are precision-positioned at standardized intervals to accommodate common bolt sizes and modular connection patterns. This prefabrication feature ensures consistent spacing and alignment across multiple joints, facilitating rapid assembly of frameworks, brackets, and support structures. The holes are designed to maintain the structural integrity of the section while enabling fully bolted connections that can be easily adjusted or disassembled as required.

Applications & Packaging
This product is ideal for the rapid construction of industrial racking, conveyor supports, machine frames, and temporary structures where bolted connections are preferred over welding. Supplied in standard export packing-typically securely bundled with steel strapping-the angles are protected for efficient handling and transport, ensuring they arrive on-site ready for immediate installation.

 

Angle bar detials:

Product name

Angle Steel Dimensions Angle straight bar

Grade

A36,S235jr,S275jr, S355jr, St37-2,SS400,Q235,Q345, etc…

Standard

ASTM, AISI, EN, DIN, JIS, GB

Size

1.25#-25#

Thickness

1-35mm

Length

3-9m, 4-12m, 4-19m, 6-19, 6-15m or as customer's requirement

Technique

Welded, Hot rolled, galvnized

Place of origin

Tianjin China (Mainland)

Application

Construction and machine structure pipe, building material tube,
agriculture equipment, water and gas pipe, etc.

Delivery terms

FOB, CIF, CFR, EXW

 

angle steel

angle steel

angle steel