What standards do the products comply with?

Products comply with ASTM A53/A573/A283, BS1387, GB/T3091, GB/T13793, ISO630, JIS G3131, and JIS G3106.

How are the products packaged for shipping?

Packing includes steel strips in bundles, woven cloth with slats, wooden pallets, or as per customer requirements.

Seamless Square Rectangular Tube for Construction Square Steel Pipe with Customized Service

Name: Seamless Square Rectangular Tube for Construction Square Steel Pipe with Customized Service
Brand: Shanghai Changzeng Metal Co., Ltd.
SKU: 2215380275

Shanghai, ChinaShanghai Changzeng Metal Co., Ltd.

US$498.00-558.00

1 Ton

Sample price:US$458.00/ton.Request sample

Product profile

After-sales Service

Support

Warranty

2 Years

Additional Service

Cutting, Drilling

Model NO.

Q235b

Product Name

Z Channel Purlin

After-Sale Service

Solve Any Problems for Clients

Company Years

12 Years

Shipping Service

Cheaper and Realiable

Delivery Time

7 Days

Quality Control

as Request

Place of Origin

Shanghai, China

MOQ

1ton

Package

Standard Seaworth Packing

Usage

Construction Structure

Payment Term

30%Tt Advance + 70% Balance

Transport Package

1. Big Od/ Bulk Small Od: Packed by Steel Strip

Specification

GB, ASTM, AISI

Trademark

Origin

Shanghai

Production Capacity

5000 Tons/ Month, 15000 Tons/ Season

Key features

Extensive Size Range: Square/Rectangular tubes from 20x20mm to 500x500mm with various thicknesses.

Multiple Material Options: Available in ASTM A36, SS400, Q235, Q345, 10#, 20#, and other standard grades.

Flexible Customization: Supports cutting, drilling, bending, punching, and surface treatments like galvanizing.

Comprehensive Standards: Meets ASTM A53/A573, BS1387, GB/T3091, ISO630, JIS G3131, and other global standards.

Versatile Applications: Ideal for construction structures, shipbuilding, bridges, automobile chassis, and machinery.

Fast Delivery: Lead time of 3-15 working days, supported by large stock and experienced export process.

Third-Party Inspection: Supports ISO, SGS, BV inspections to ensure quality control as per client requests.

Secure Packaging: Standard seaworthy packing including steel strips, woven cloth, or wooden pallets.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceFast DeliveryLow MOQ

Shanghai Changzeng Metal Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.68h CertifiedTerms of Payment: LC, T/T, PayPal

About Our Factory & Business Background

AddressMeilan Lake, Baoshan District, Shanghai, China

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

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

Minimum Order Quantity1 Ton

Supply Chain Partners20

Our Production Capability & Technical Expertise

Main ProductsSteel Structure, Square Tube, Galvanized Steel Sheet Coil, Cold Rolled Steel Sheet Coil, Stainless Steel Sheet, Steel Channel, Steel H Beam, Angle Steel, Seamless Pipe, Round Tube

QA/QC inspectors1 people

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

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers1 people

Traceability of Raw MaterialsYes

Own BrandYes