How long is the delivery time?

Standard delivery is within 20 days, or it can be customized based on your specific request.

What payment terms do you accept?

We accept T/T, L/C at sight, LC, D/P, and other standard international payment terms.

Do you provide OEM and ODM services?

Yes, we provide both OEM and ODM services with 6 R&D engineers and a dedicated processing factory.

ASTM A36 Black Steel Hollow Structural Sections Square Metal Profiles

Name: ASTM A36 Black Steel Hollow Structural Sections Square Metal Profiles
Brand: Tianjin Youfa International Trade Co., Ltd.
SKU: 1965724795

Tianjin, ChinaTianjin Youfa International Trade Co., Ltd.

US$650.00-950.00

1 Ton

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

Cold Rolled

Material

Carbon Steel

Surface Treatment

Painted/Galvanized

Usage

Machinery Industry, Construction & Decoration

Section Shape

Square/Rectangular

Commodity

Black Steel Tube Profiles

Square Tube

10X10mm-500X500mm

Rectangular Tube

10X20mm-400X600mm

Wall Thickness

0.5mm-20.0mm

Length

6.0m, 5.8m, 1-12.0m

Steel Grade

S235jr/S355;ASTM A500;Stk400/Stk500

Painted Color

Yellow, Orange, Red, Black, Green

Business Type

Manufacturer & Exporter

Transport Package

in Bundle by Steel Strip

Trademark

Youfa

Origin

China

HS Code

7306610000

Production Capacity

10000000 Metric Ton

Key features

Comprehensive Customization: Full customization available from samples, designs, and flexible minor options.

Wide Size Range: Square tubes 10x10mm to 500x500mm; Rectangular tubes 10x20mm to 400x600mm.

Multiple Steel Grades: Available in ASTM A500, A36, S235JR, S355, and Chinese grades Q195/Q235/Q345.

Diverse Surface Treatment: Options include painted (Yellow, Orange, Red, Black, Green) and galvanized finishes.

Flexible Length Options: Standard lengths 5.8m/6m or fully customized based on customer requirements.

Global Manufacturing Leader: Top 500 Chinese enterprise and world's largest welded steel pipe manufacturer.

Extensive Certifications: Holds API 5L/5CT, ISO9001, ISO14001, EN10219, FPC, and UL/FM quality system certs.

Fast Delivery: Standard delivery within 20 days or customized lead time based on order volume.

Company profile

Cooperated with Fortune 500Exhibition ExperienceRaw-Materials TraceabilityRaw Materials Reports

Tianjin Youfa International Trade Co., Ltd.

Tianjin, China

CertifiedBusiness 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: Tianjin PortAverage Response Time: ≤4.98h

AI-Powered supplier vetting

SummaryThe supplier is a limited company with 83 employees, an affiliated company, a valid import/export license, and stated OEM experience for well-known brands. It offers extensive customization and ODM services, reports new products within the past year, and provides substantial listed production capacity, including 657,000 tons of scaffolding and 50,000 tons of stainless steel pipe and fittings. Service procedures, corrective and preventive actions, and complaint-handling records are stated to exist. However, no valid manufacturing-capacity contract with the factory and related subcontractors is reported, and the supplier lacks overseas warehouses, showrooms, agents, or branches. Digitalization has started, but ERP integration and big-data use are absent. Evidence is insufficient for certifications and specific customer cases.

After-Sales capabilityThe supplier states that it has documented and followed procedures for service-capability assessment, corrective and preventive actions, and customer complaints. It offers in-stock service capacity and one-month stated lead times in both peak and off-season, but has no overseas warehouse, showroom, agent, or branch support.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and has broad R&D customization capabilities. It has started enterprise digital-process development, but lacks an available SDK, ERP integration, and big-data capability, indicating innovation activity with incomplete digital infrastructure.

Production capacityReported annual capacities include 657,000 tons of scaffolding and 50,000 tons of stainless steel pipe and fittings, alongside several steel-pipe categories. The supplier also reports inventory capability and a one-month lead time, but states that no valid manufacturing-capacity contract exists with its factory and related subcontractors.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization, and also states that it provides ODM services. This is direct evidence of broad customization support.

Product Q&A

Q:What customization options are available for these steel tubes?

We offer full customization from samples and designs, including minor and flexible customization options.

Q:What are the available size ranges for square and rectangular tubes?

Square tubes range from 10x10mm to 500x500mm, and rectangular tubes range from 10x20mm to 400x600mm.

Q:Which steel grades and standards do you supply?

We supply ASTM A500, A36, S235JR, S355, EN10219, and Chinese grades like Q195, Q235, and Q345.

Q:What surface treatments and colors are available?

Surfaces include painted (Yellow, Orange, Red, Black, Green) and galvanized/oiled finishes to prevent rust.

Q:What is the minimum order quantity?

The minimum order quantity is 1 unit.

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