Premium ASTM A36 A500 Black Square Steel Tube for Construction

Name: Premium ASTM A36 A500 Black Square Steel Tube for Construction
Brand: Shandong Ruida Steel Co., Ltd.
SKU: 2145492562

Shandong, ChinaShandong Ruida Steel Co., Ltd.

US$550.00

25-99 Tons

US$540.00

100-299 Tons

US$530.00

300-499 Tons

US$520.00

500+ Tons

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Online Technical Support

Type

Welded

Model NO.

0.7-200mm

Technique

Hot Rolled

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

Equilateral Angle Bar

Grade

Q195-Q420 Series

Length

6m-12m

Thickness

3mm~35mm

Materials

A36 Q235/Q235B/Q345/Q345b/ S235jr/S235/S355jr/S355

Certificate

ISO, SGS, CE, CQC and Third Part Inspection

Transport Package

Iron Belt Fastened, or Customize Package

Specification

Galvanized steel

Trademark

SDRD

Origin

China

Production Capacity

50000 Ton/ Month

Key features

Wide Material Range: Available in A36, Q235, Q345, S235jr, S355 and other carbon steel grades.

Customizable Dimensions: Length and dimensions can be customized to meet specific project requirements.

Comprehensive Certifications: Certified by ISO, SGS, CE, CQC, and third-party inspection agencies.

Strong Corrosion Resistance: Features hot-dip and electro-galvanizing for enhanced protection and durability.

OEM and ODM Services: Full customization, minor customization, and design-based customization available.

Flexible Packaging: Standard iron belt fastening or fully customizable packaging options.

Extensive Size Options: Square tubes from 16x16mm to 1000x1000mm and thickness up to 50mm.

High Tensile Strength: Tensile strength ranges from 400MPa to 550MPa for structural reliability.

Company profile

High Repeat Buyers ChoiceImporters and ExportersFast DeliveryQA/QC Inspectors

Shandong Ruida Steel Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.15h

AI-Powered supplier vetting

SummaryThe supplier operates in metal materials and construction-related products, with stated production of galvanized, galvalume, prepainted steel coils, and corrugated steel sheets. It reports two GI/GL production lines and three PPGI/PPGL lines, and processes materials according to customer requirements. Export sales represent 90% of total sales, with four years of export experience, and quotations can be offered on FOB, CIF, CFR, and EXW terms. Customization options range from sample- and design-based work to full customization. However, the supplier is not identified as a professional technical supplier, does not provide 3D software design, has no stated in-stock, overseas warehouse, overseas agent, branch, or showroom capability, and has not participated in offline trade shows. Quality assurance is stated, but supplier approval, corrective-action, and complaint-handling records are incomplete. Innovation evidence is limited, with no new product reported in the past year and no SDK. Customer cases and...

Supplier typeThe supplier is presented as a metal-materials and construction-products seller and producer, covering steel coils, corrugated steel sheets, metal products, mechanical equipment, and related processing. It is explicitly not classified as a professional technical supplier, indicating a product-oriented manufacturing/trading profile rather than a technical-service provider.

Financial creditThe financial-information slice reports zero operating revenue, operating cost, gross profit, and operating profit for the stated periods. These figures provide no positive evidence of operating financial performance and raise a material credibility concern, although the context does not explain whether the values reflect actual results, missing data, or reporting limitations.

R&D capabilityThe supplier reports no new products during the past year, no available SDK, and no 3D software design service. It does offer ODM services, but the available evidence does not demonstrate active product innovation or software-enabled R&D capability.

Production capacityThe supplier states that it operates two GI/GL production lines and three PPGI/PPGL production lines, producing galvanized and prepainted steel coils and corrugated steel sheets while processing materials to customer requirements. Nevertheless, it reports no in-stock service capacity, and the provided production description is incomplete regarding output, capacity, equipment details, and manufacturing controls.

Customization capabilityThe supplier lists customization from samples, minor and flexible customization, full customization, and customization from designs. Its company description also states that it processes materials according to clients’ requirements, while ODM and OEM services are reported as available, providing explicit evidence of broad customization support.

Product Q&A

Q:What services can we provide?

We are an iron and steel enterprise integrating industry and trade. Our company has been in the steel business for more than ten years, we are internationally experienced, professional, and we can provide a variety of steel products with high quality to our clients.

Q:How is your Payment Term?

Our usual payment methods are T/T, L/C, D/A, D/P, Western Union, MoneyGram. Payment methods can be negotiated and customized with customers.

Q:Can we visit your factory?

Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

Q:Can you provide sample?

Yes, for regular sizes sample is free but buyer need to pay freight cost.

Q:How can I get a quotation from you?

You can leave us a message, and we will reply to every message in time. Or we may talk online by Trademanager. And you can also find our contact information on the contact page.