What are your main markets?

Our main markets include the Middle East, South America, South Asia, Africa, Southeast Asia, Northern Europe, and Western Europe.

What standards do your pipes meet?

Our pipes meet standards such as BS1387-85, GB/T3091-08, DIN2440, JIS-G3444, EN10255, and ASTM A53.

Can you customize the pipe specifications?

Yes, special designs are available according to requirements. We can neck down pipes, punch holes on the pipe wall, and provide various fittings and elbows.

Seamless Hollow Section Galvanized Square Tube for Structural Applications

Name: Galvanized/Welded/Black/Seamless Hollow Section Galvanized Square Tube for Structural Applications
Brand: LIAOCHENG HUAJIAN STEEL CO., LTD.
SKU: 734456272

Shandong, ChinaLIAOCHENG HUAJIAN STEEL CO., LTD.

US$500.00-550.00

10 Tons

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

ERW

Model NO.

40*40*2mm

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Construction & Decoration

Section Shape

Square

Shape

Round

Standard

BS, GB, DIN, JIS, En, etc

Grade

Q235 Q345 St37 St52 St37-2 10# 20# 16mn

Surface

Black, Paint, Galvanized

Application

Structure Pipe, etc

Sample

Avaliable

MOQ

25tons

Delivery Time

Fast Delivery, Within 10 Days

Transport Package

Standard Seaworthy Export Packing.

Specification

40*40*2mm

Trademark

HJ steel

Origin

Shandong Province, China

Production Capacity

5000tons Per Month

Key features

Extensive Size Range: Outer diameter 17-1820mm, wall thickness 0.5-50mm, length 4-14m or custom.

Multiple Surface Options: Available in Black, Paint, Pre-galvanized (60-150g/m2), and Hot-dipped Galvanized (200-400g/m2).

Wide Material Grades: Supports Q195, Q215, Q235, Q345, St37, St52, 10#, 20#, and 16Mn steel grades.

Fast Delivery for Stock: Normal sizes in stock can be shipped within 7-10 days after deposit receipt.

Free Sample Provision: Samples are provided free of charge; customers only need to cover freight costs.

Strict Quality Inspection: Products undergo hydraulic, eddy current, and infrared testing or third-party inspection.

Flexible Customization: Custom shapes, standards, and designs available. Pipe necking and punching supported.

High Production Capacity: Monthly productivity of 6000 Mts with ISO9001:2000 strict process control.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExhibition Experience

LIAOCHENG HUAJIAN STEEL CO., LTD.

Shandong, China

Business 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: 12 years CertifiedNearest Port: Qingdao Port, Tianjing PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with broad customization, 3D software design, ODM, OEM, and recent new-product development capabilities. It reports substantial steel plate and H-beam output, inventory capability, overseas warehouse services, overseas agents or branches, and direct import-export rights. Export activity represents 90% of total sales, with Europe and North America listed as primary markets and 12 years of export experience. Service procedures exist for corrective and preventive actions and complaint handling, with follow-up records. Financial records are referenced for 2021–2023, but their actual results are not provided. Certification, manufacturing-contract status, environmental compliance, fire-drill status, and formal supplier-service assessment procedures remain insufficiently documented.

Supplier typeThe supplier is explicitly described as a professional technical supplier, with steel plate and H-beam production, direct import-export rights, and Europe and North America identified as primary export markets. Its export share is stated as 90%, and it has 12 years of export experience, indicating a technically oriented and internationally active manufacturing supplier.

After-Sales capabilityThe supplier has clear procedures and follow-up records for corrective and preventive actions and customer complaints. It also reports inventory capability, overseas warehouse services, overseas agents or branches, and participation in the 2023 MTM offline trade show; however, there is no overseas showroom and the number of countries served overseas is recorded as 0.

R&D capabilityThe supplier provides 3D software design services, supports multiple forms of customization, reported new products within the past year, and offers ODM services. It has no available SDK, which limits the evidence for software-development integration capability but does not negate its documented product and design innovation capabilities.

Production capacityThe supplier reports annual production information of 50,000 tons of steel plate and 50,000 tons of H-beam, 21–30 quality-control staff, in-stock capability, and lead times within 15 working days in both peak and off-seasons. A valid manufacturing-capacity contract is unknown, so contractual validation is incomplete, but the stated operating capabilities support a positive assessment.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, together with 3D software design, ODM, and OEM services for well-known brands. This combination demonstrates broad documented customization coverage.

Client casesThe supplier reports OEM services for well-known brands and participation in the 2023 MTM offline trade show. These are relevant customer or market-experience indicators, but no customer names, project details, order outcomes, or verifiable case descriptions are supplied.

Product Q&A

Q:Why should I choose your company?

We have large stocks, long-term cooperative factories, and offer the lowest ex-factory prices. We guarantee product quality and offer reasonable pricing lower than commercial peers.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 25 Metric Tons (or 15 Metric Tons as per specific FAQ section).

Q:What is the delivery time?

For normal sizes in stock, shipment is within 7-10 days after receiving the deposit. For production, delivery to the loading port takes 25-30 days after receiving T/T deposit or original L/C.

Q:What payment terms do you support?

We support T/T and 100% L/C at sight.

Q:Do you charge for samples?

No, we provide samples for free. The customer only needs to pay for the freight charges.