Is the packaging safe for delivery?

Yes, we guarantee safe packing to ensure products arrive in good condition. We also address any shipping problems if they occur.

How long does delivery take?

Delivery usually takes 18 to 40 days to arrive worldwide, depending on the specific quantity.

Is drop shipping available?

Yes, drop shipping is available, and we can send products worldwide.

Mild Carbon Weld Black Steel Square Round Rectangular Tube Pipe

Name: Mild Carbon Weld Black Steel Square Round Rectangular Tube Pipe
Brand: LIAOCHENG HUAJIAN STEEL CO., LTD.
SKU: 756283852

Shandong, ChinaLIAOCHENG HUAJIAN STEEL CO., LTD.

US$500.00-999.00

10 Tons

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

ERW

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Square

Secondary or Not

Non-Secondary

Alloy or Not

Non-Alloy

Grade

10#-45#, 16mn, A53-A369, Q195 Q215 Q235 A53

Od

12-600mm

Wall Thickness

0.5-25mm

Zinc Coating

80-200G/M2 of Square Pipe

Size

12*12mm-600*600mm

Certification

SGS

Lenghth

2-12m of Square Pipe

Sample

for Free

Transport Package

Packaged in Exporting Standard.

Specification

30*30mm

Trademark

Huajian Steel

Origin

Shandong, China

Production Capacity

5000 Ton One Month

Key features

Wide Customization Options: Supports customization from samples, designs, and full customization including size, grade, and coating.

Free Sample Availability: Free samples provided for quality verification; freight cost may apply initially but is waived for long-term partners.

High Quality Assurance: Strict QC inspection at every process with certifications from SGS, BV, and ISO 9001:2000.

Versatile Application: Suitable for construction, machinery, shipbuilding, solar power, and chemical equipment industries.

Flexible Payment Terms: Accepts T/T (30% advance, 70% balance) and L/C at sight for secure transactions.

Global Delivery Service: Supports worldwide shipping including drop shipping with safe packaging guarantees.

Professional Packaging: Multiple packaging options including bundles, bulk, plastic bags, and wooden boxes to ensure safety.

Established Manufacturer: Over 12 years of export experience with high repeat buyer choice rate and professional QC teams.

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: ≤10.61h

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:What is the Minimum Order Quantity?

The MOQ is usually 25 tons or more, depending on specific requirements.

Q:What payment terms do you accept?

We accept T/T (30% advance, 70% balance against B/L copy) and L/C at sight.

Q:Can the product grams be customized?

Yes, these products can be customized according to your specific requirements.

Q:Is a free sample available?

Yes, free samples are provided. The sample is cost-free, but freight cost applies initially; it will be refunded in future orders or waived for established partners.

Q:Do you offer customization and reproduction services?

Yes, we provide customization and reproduction services if you provide a photo or design.