Q700L High-Strength Hollow Rectangular Section 40×60×1.2mm

1. Product Overview

This product is a 700-grade high-strength low-alloy rectangular welded tube, sized 40×60mm with a wall thickness of 1.2mm and a fixed length of 5.2 meters. It is formed by high-frequency welding with 700-series high-strength base material, reaching a yield strength of 700MPa. It is a special lightweight profile for trailers. The tube features regular cross-section, uniform welds and stable material properties, suitable for lightweight manufacturing of commercial vehicles.

2. Application Scenarios

• Frame cross beams, auxiliary frames and fence frames for semi-trailers, grain bin trailers and dump trailers
• Lightweight support frames for travel trailers and construction machinery
• Light-duty load-bearing supports for mining equipment and ports
• Auxiliary frames for containers and chassis structural parts of modified vehicles
• Other steel structure projects requiring load bearing and weight reduction

3. Core Advantages

1. Lightweight: Compared with ordinary Q355 steel tubes, it has lower self-weight under the same load capacity, helping reduce vehicle weight and fuel consumption.
2. High strength and good toughness: Made of 700 high-strength material, it resists deformation and fatigue, and is not easy to crack or deform under heavy-load bumpy conditions, with good low-temperature impact resistance.
3. Good workability for welding: Compatible with conventional cutting, bending and welding processes, matching the production lines of trailer factories.
4. Excellent section stiffness: The rectangular hollow structure delivers outstanding bending and torsion resistance and reliable structural stability.
5. Stable material quality: Material certificates are available for raw materials, with consistent performance across batches to lower the risk of finished product rejection.

4. Structure and Specification Description

• Cross-section size: 40mm×60mm rectangular, wall thickness 1.2mm
• Single piece length: 5.2m
• Material: 700-grade high-strength steel
• Forming process: High-frequency longitudinal welding with smooth welds and well-treated internal and external burrs
• Surface condition: Black raw surface without additional coating
• Tolerance: Dimensional and wall thickness tolerances comply with general industry standards for high-strength welded tubes

5. Customization Options

• Length customization: Cut to required sizes, small cuts and multiple fixed lengths are available
• Processing services: CNC cutting, punching, beveling and bending
• Specification expansion: Other rectangular tubes and high-strength channel steel for trailers of the same material are available
• Supply: Small trial orders and bulk orders are acceptable, production arranged as per order

  

  

6. Packaging & Delivery Instructions

• Packing: Bundled with steel straps for fixation to avoid deformation from collision during transport
• Transport: Shipment by bulk carrier is available
• Delivery: Stock items can be loaded promptly. Lead time for customized processing orders will be confirmed upon negotiation.

7. Inquiry Guide

Welcome to inquire about this 700 high-strength 40×60×1.2 rectangular tube. Please advise your purchase quantity and whether cutting processing is needed. We will calculate the exact quotation and lead time for you. Supporting schemes for other high-strength trailer profiles of the same series are also available. We look forward to cooperating with you.