Easy Maintenance Steel Square Hollow Pipe for Automotive Anti

• Overview
• Product Description
• Product Parameters
• Detailed Photos
• FAQ

Overview

Basic Info.

Model NO.	Square Hollow Section
Type	Welded
Technique	Hot Rolled, Cold Rolled
Material	Steel
Surface Treatment	Black
Usage	Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Main Application Fields, Automobile Industry
Section Shape	Square/Round
Product Name	Square Hollow Section Steel Pipe
Keywords	Steel Pipe
Feature	Ultra-High Strength Superior Load-Bearing Capacity
OEM Custom	Yes
ODM Custom	Yes
Process	Hot Rolled/Cold Rolled
Lenght Specifications	6m/9m/Random Lenght
Wall Thickness	1.1/1.2/1.5/2/2.5/3/3.5/4/5 or Customized
Transport Package	Standard Packaging or Customized
Specification	Standard Specifications or Customized
Trademark	ZY
Origin	Shandong, China
Production Capacity	300000t/Year

Product Description

Product Description

HIGH-STRENGTH SQUARE HOLLOW SECTION (SHS) STEEL PIPE
High-strength square & rectangular hollow sections are high-strength low-alloy hollow profiles with square and rectangular cross-sections, manufactured by thermo-mechanical rolling process. It covers multiple strength grades including 700L, 980MC and 1500HS. Made from premium steel billets, the products are high-end structural steel processed through precise forming, welding and finishing.Featuring high strength, light weight, high toughness, good workability and excellent fatigue resistance, they serve as core load-bearing materials widely used in machinery manufacturing, truck & trailer, new energy, building steel structures and construction machinery. It is the preferred upgraded alternative to conventional square steel tubes.ApplicationAutomobile & Trailer Industry
Our high-yield steel tubes for vehicle frames are crucial for automotive safety and lightweighting. They are extensively used in manufacturing semi-trailer main beams, chassis longitudinal and cross beams, carriage uprights, new-energy vehicle (NEV) chassis, anti-collision beams, and high-strength seat frames.

Heavy Construction Machinery
Engineered to handle massive operational stress, these heavy-duty hollow steel profiles are the backbone of modern construction equipment. They serve as critical structural components for crane booms, outriggers, excavator booms, support frames for mining machinery, and pump truck structural parts.

New Energy Industry Infrastructure
Providing rock-solid foundations for the green energy transition, our high-strength square steel tubes are perfectly suited for solar photovoltaic (PV) support brackets, wind power equipment frames, and the heavy load-bearing structural cabinets required for large-scale energy storage equipment.Product Parameters

TECHNICAL PARAMETERS
Process	Hot Rolled/Cold Rolled
Surface Treatment	Black
Lenght Specifications	6M/9M/Random Lenght
Wall Thickness	1.1/1.2/1.5/2/2.5/3/3.5/4/5 Or Customized
Section Shape	Square/Round
Performance Standard	GB/T 6728-2025,JG/T 178-2005,GB/T13793-2016,GB/T37366-2019
Customized	Other Specifications According To Customers' Requirements

Detailed Photos

Ultra-High Strength & Superior Load-Bearing Capacity Engineered for extreme environments, our conventional high-strength square hollow sections feature an impressive yield strength ranging from 700 MPa to 1500 MPa. Premium grades like QSTE700TM achieve a yield strength of ≥700 MPa and a tensile strength of 750–950 MPa, far outperforming standard Q235 and Q355 steel tubes. Under identical load conditions, our high-yield hollow sections deliver a 40% to 80% increase in load-bearing capacity, making them the ultimate solution for heavy-duty, long-span, and high-load structural requirements.Lightweight, Energy-Saving & Cost-Efficiency Improvement
Maximize your return on investment through advanced lightweighting. Under the same load-bearing standards, our high-strength square steel tubes allow for reduced cross-sections and thinner walls, achieving a 20% to 30% reduction in overall structural weight. This drastic decrease in steel consumption directly lowers material, transportation, and installation costs. When applied to trailers and heavy-duty trucks, this weight reduction translates to extended cruising ranges and maximized load-carrying economy.

Extreme Environmental Resilience & Fatigue Resistance
Built to withstand the toughest conditions, our structural hollow sections integrate high toughness with excellent low-temperature resistance and outstanding anti-fatigue properties. This ensures that the steel retains its structural integrity and safety standards even under continuous dynamic loading or in harsh, freezing climates, thereby significantly extending the service life of your equipment.Precision Manufacturing & Excellent Workability
We deliver exceptional dimensional accuracy and stable material performance across a complete range of sizes. Despite their ultra-high strength, these square hollow sections maintain excellent workability for cutting, welding, and forming. We also offer fully customized processing upon request to seamlessly match the exact specifications of your engineering blueprints.

FAQHow can we guarantee quality? Our products have passed ISO9001 international quality standard certification. We implement all-round quality control from raw materials to finished products. The quality inspection system tracks the whole process and matches the extreme performance test of finished products to fully guarantee the product quality.Why should you buy from us, not from other suppliers? We are a global supplier specializing in R&D and manufacturing of semi-trailer axles/accessories; The production process is subject to unified, strict and perfect quality control and quality inspection procedures; After 20 years of testing in the market, our cooperative customers are all over the world, and so far we have maintained zero quality disputes.Do you have an MOQ? Depends on different ideas; can be negotiated. The larger the quantity is, the more competitive the unit price will be. If you are interested in purchasing.Could you please provide us with the specifications of the products? Yes, please select the corresponding product model in our product catalog or feel free to email us for more product detail.