What materials are used for these steel tubes?

Materials include Carbon Steel grades such as Q235B, Q345b, Ss400, A36, St37, and ASTM A106 Gr.B.

Are OEM and ODM services available?

Yes, we provide OEM and ODM services, including customization from samples, designs, and flexible customization.

What certifications do the products have?

Our products are certified under ISO9001, SGS, ASTM, BS, and GB standards.

Round Shape Box Section

Name: China Products Galvanized and Black Steel Tube in Square/Rectangular/Round Shape Box Section
Brand: LIAOCHENG HUAJIAN STEEL CO., LTD.
SKU: 774986092

Shandong, ChinaLIAOCHENG HUAJIAN STEEL CO., LTD.

US$499.00-599.00

10 Tons

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

Hot Rolled

Model NO.

70*70*6mm

Material

Carbon Steel

Surface Treatment

Black Surface, Galvanized or Not

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Construction & Decoration

Section Shape

Square

Diameter

15*15mm-300*300mm

Thickness

1.5-15mm

Length

as Customer Requirement

Material Grade

ASTM A106 Gr.B, 20#

MOQ

25tons

Delivery Time

Fast Delivery, Within 10 Days

Transport Package

Standard Export Sea-Worthy Packaging

Specification

70*70*6mm

Trademark

HJ steel

Origin

Shandong Province, China

Production Capacity

5000 Tons Per Month.

Key features

Customizable Dimensions: Diameter 15*15mm-300*300mm, Thickness 1.5-15mm, Length as customer requirement.

Multiple Surface Treatments: Options include Black Surface, Galvanized, Oiled, or other anti-corrosive treatments.

Fast Delivery: Delivery within 10-15 working days after receiving payment or L/C.

Flexible MOQ: Minimum order quantity is 25 tons for standard items, with small orders accepted.

Wide Material Selection: Available in Q235B, Q345b, Ss400, A36, St37, and ASTM A106 Gr.B carbon steel.

High Production Capacity: Monthly productivity reaches 5000 tons to ensure timely supply.

Comprehensive Certification: Products meet ISO9001, SGS, ASTM, BS, and GB standards.

Versatile Applications: Suitable for construction, machinery, oil/gas drilling, and pipeline transport.

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: ≤9.56h

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.