What are the available length specifications?

Lengths are available in 6m, 9m, or random lengths.

How do you ensure product quality?

We implement 100% inspection (visual and function) from raw materials to finished products with a complete tracking system.

Low Alloy Q355b High Strength Square Steel Tube for Port Large Scale Building Structural Engineering Projects

Name: Low Alloy Q355b High Strength Square Steel Tube for Port Large Scale Building Structural Engineering Projects
Brand: Shandong Zhengyang Machinery Co., Ltd.
SKU: 2183071642

Shandong, ChinaShandong Zhengyang Machinery Co., Ltd.

US$500.00

30 Tons

Product specifications

Model

Sample price:US$500.00/ton.Request sample

Product profile

Customization

Available

After-sales Service

Support

Warranty

1 Year

Model NO.

Square Steel Tube

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

Origin

Shandong, China

Production Capacity

300000t/Year

Key features

Ultra-High Strength: Yield strength ranges from 700 MPa to 1500 MPa, outperforming standard steel tubes.

Superior Load-Bearing: Delivers 40% to 80% increase in load-bearing capacity under identical conditions.

Lightweight Design: Achieves 20% to 30% reduction in structural weight, lowering material and transport costs.

Extreme Fatigue Resistance: Built with high toughness and low-temperature resistance for harsh environments.

ISO9001 Certified: Passes international quality standards with 100% inspection from raw material to finish.

Customized Wall Thickness: Available in 1.1 to 5mm or fully customized to specific engineering requirements.

Versatile Applications: Ideal for automobiles, construction machinery, new energy, and heavy transport.

OEM & ODM Services: Full customization from samples, designs, or minor adjustments available.

Company profile

Shandong Zhengyang Machinery Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 20 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.51h

About Our Factory & Business Background

AddressJining, Shandong, China

Plant Area10500 square meters

Number of Employees40

Registered Capital20,000,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Set

Supply Chain Partners15

Our Production Capability & Technical Expertise

Main ProductsSteel Tube

Production Lines6

Production MachinesLaser Tube Cutting Machine, Laser Cutting Machine, Welding Robot, Hydraulic Press, Punch Press, Sawing Machine, Lathe, Shot Blasting Machine, Drilling Machine, Machining Center, Painting Line

QA/QC inspectors3 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers6 people

Traceability of Raw MaterialsYes

Own BrandYes