High Quality Square Tubing Pipe Iron Rectangular Tube Galvanized Steel ASTM Tube

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Product Description

Basic Information
Model NO. Q235B Type Seamless
Technique Extruded / ERW Material Stainless Steel / Carbon Steel
Surface Treatment Galvanized Section Shape Rectangular / Square
Thickness 0.8 - 12.75 mm Tolerance ±1% or 0.02mm
Length 6m, 12m or customized Production Capacity 5000 Tons
Application Boiler Pipe, Hydraulic/Automobile Pipe, Machinery Industry, Chemical Industry, Construction & Decoration, Special Purpose
Product Description
Galvanized Steel Tube

Hot-Dip Galvanized Square Pipe: The surface is treated with a hot-dip plated or galvanized layer. This process significantly increases corrosion resistance and prolongs the service life of the steel pipes. These tubes are widely utilized beyond standard fluid pipelines for gas, water, and oil; they are critical in the oil industry, offshore oil wells, bridge piling, and mine tunnel support frames.

The galvanized square tube features an alloy layer produced by the reaction of molten metal with the iron matrix, ensuring a strong bond between the substrate and the plating. It offers advantages such as a uniform coating, strong adhesion, and long-term durability compared to traditional non-galvanized pipes.

Product Specification Banner
Square Tube Detail 1 Square Tube Detail 2
Technical Specifications
Standard EN, BS, JIS, ASTM, etc. Grade Q235, Q235B, S275, S275JR, A36, St37, etc.
Outer Diameter 21.3 - 660 mm Processing Bending, Welding, Decoiling, Punching, Cutting
Invoicing By Theoretical Weight Oil Treatment Non-oiled
Professional Manufacturing & Export
Factory Overview

Industry Expertise: Specialized in the steel industry for over 30 years, providing comprehensive solutions for steel pipes and fittings. Products include hot rolled and cold drawn seamless, ERW, EFW, LSAW, and SSAW pipes.

Our facilities are equipped with the latest manufacturing techniques and machines to provide products in full conformity with international standards. We offer customized services such as shot blasting, precision cutting, roll grooving, and threading.

Manufacturing Process 1 Manufacturing Process 2
Packaging & Shipping
Packaging Detail
FOB Port Tianjin Lead Time 15 - 30 Days
Weight per Unit 1500.0 Kilograms Dimensions per Unit 11.8 x 1.0 x 0.8 Meters
HTS Code 7304.41.90 00 Packaging In Bundles
Certifications & Global Markets
Our products meet Mill Test standards and are compliant with EN 10204 3.1, ISO 9001, CE, and RoHS.
Certificates
Asia
Australasia
Central/South America
Eastern Europe
Mid East/Africa
North America
Western Europe
Southeast Asia
Global Export Map
FAQ
What are the primary benefits of using galvanized square tubes?
Galvanized square tubes offer superior corrosion resistance due to the zinc coating, which prevents rust and significantly extends the service life of the pipe in various environments.
What length and size options are available for these pipes?
Standard lengths are 6m and 12m, but we can accommodate custom length requirements. Thicknesses range from 0.8mm to 12.75mm with various square and rectangular dimensions.
In which industries are these tubes most commonly used?
They are widely used in building materials, machinery industry, chemical industry, mining, and for specialized pipelines in the oil and gas sectors.
Do your products comply with international quality standards?
Yes, our products are manufactured to meet standards such as EN, BS, JIS, and ASTM, and they carry certifications including CE, RoHS, and ISO9001.
What is the typical lead time for an order?
The delivery time usually ranges between 15 to 30 days depending on the specifications and order volume.
What additional processing services do you offer?
We provide value-added services including precision cutting, bending, welding, punching, and custom pipe fabrication to meet specific project needs.

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