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Black Square Steel Pipe - Hot Rolled Structural Hollow Section
US$500.00
5-27 Tons
US$450.00
28+ Tons
Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

ERW

Material

Carbon Steel

Surface Treatment

Oiled

Usage

Hydraulic/Automobile Pipe, Machinery Industry, Construction & Decoration

Section Shape

Square

Size

10*10-400*400mm

Thickness

0.6-20mm

Grade

Q235, Q345

Transport Package

in Bundle

Specification

CE SGS

Trademark

Tian Ying Tai

Origin

Tianjin China

HS Code

73066100

Production Capacity

80000t/Year

Key features

Wide Size Range: Square section 16x16mm to 400x400mm, thickness 0.6-20mm, length up to 16m.
Multiple Surface Treatments: Available in Oiled, Pre-galvanized, Hot Dip Galvanized, Painted, or Bared finishes.
Customizable Specifications: Size, thickness, grade, and surface treatment can be customized to customer needs.
Multiple Manufacturing Techniques: Produced via Welded, Seamless, ERW, SSAW, LSAW, Cold/Hot Drawn methods.
Versatile Applications: Suitable for hydraulic/automobile pipes, machinery, construction, furniture, and traffic.
International Standards Compliance: Meets ASTM A53/A500, BS 1387, GB/T 3091/3094, DIN, EN, and JIS standards.
Diverse End Options: Available with Plain, Beveled, Threaded, Necking down, Expanding neck, or Punching holes.
High-Quality Materials: Made from Carbon Steel grades Q195, Q215, Q235, and Q345 for structural strength.

Company profile

Tianjin Tianyingtai Steel Pipe Co., Ltd.
Importers and ExportersIn-stock CapacityCustomization from Samples
Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤10.94h

AI-Powered supplier vetting

SummaryTianjin TianYingTai (TYT) Steel Pipe Co., Ltd. is a combined steel manufacturing and processing supplier with stated experience of 18 years, 13 steel-pipe production lines, 10 processing lines, and two hot-dipped galvanizing lines. Its business scope covers steel rolling, metal structures and materials, metal-product R&D, and photovoltaic equipment sales. The supplier holds ISO9001:2015, ISO14001:2015, and ISO45001:2018 certifications, and reports quality assurance and inventory capacity. However, it has no available SDK, no overseas warehouse, showroom, agents, or branches, and no participation in offline trade shows. Manufacturing capacity is not fully verifiable because no valid contract with related subcontractors is reported. Financial records are referenced by year, but no substantive financial results are provided. Formal complaint-handling, corrective-action, and approved-supplier procedures are also absent from the evidence.
Supplier typeThe supplier is identified as a combined company engaged in steel production, sales, processing, greenhouse engineering, export, and related metal-product activities. Its stated business scope also includes steel rolling, metal structures, metal materials, metal-product R&D, and photovoltaic equipment and component sales, indicating a manufacturer with integrated processing and trading activities.
CertificationsThe supplier reports ISO9001:2015 and ISO45001:2018 certificates, as well as ISO14001:2015 certification and other certifications. These explicitly demonstrate certified quality, environmental, and occupational-health-and-safety management coverage.
Production capacityThe supplier reports 18 years of experience, 13 steel-pipe production lines, 10 processing lines, two environmental hot-dipped galvanizing lines, and inventory capacity. However, it also reports no valid manufacturing-capacity contract with associated subcontractors, while another record states seven production lines, so the full capacity profile is not entirely consistent.
Customization capabilityThe supplier explicitly provides steel processing, metal-structure manufacturing, metal-material manufacturing, and greenhouse engineering with accessories, supported by its own factory and processing center. These activities demonstrate relevant processing and product adaptation capability, although specific customization examples or limits are not provided.

Product Q&A

Q:What are the available size ranges for the black square steel pipe?
A:
The square section size ranges from 16x16mm to 400x400mm, with thickness from 0.6mm to 20mm and length from 0.3m to 16m.
Q:Can the surface treatment be customized?
A:
Yes, surface treatments include Oiled, Pre-galvanized, Hot Dip Galvanized, Painted, or Bared, and can be adjusted according to customer needs.
Q:What manufacturing techniques are used for these pipes?
A:
We use Welded, Seamless, ERW, SSAW, LSAW, Cold Drawn, and Hot Drawn techniques to produce the pipes.
Q:Which international standards do the pipes comply with?
A:
The pipes comply with ASTM A53/A500, BS 1387, GB/T 3091/3094, DIN 2440-2441, EN 10219, and JIS G3444 standards.
Q:What are the common applications for this product?
A:
They are widely used in hydraulic/automobile pipes, machinery industry, construction & decoration, furniture, and traffic/communication.

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