What is the average lead time for orders?

The average lead time is within 15 working days during peak season and one month during the off-season.

Which standards do your hollow sections comply with?

Our hollow sections comply with ASTM A500 Grade B, ASTM A513, ASTM A36, EN 10210 (S235, S355 grades), and EN 10219 standards.

Are the tube sizes customizable?

Yes, square and rectangular tube sizes can be customized according to specific customer requirements beyond the standard range.

Hollow Structural Sections for Rectangular, Square and Round Hollow. Structural Sections

Name: Hollow Structural Sections for Rectangular, Square and Round Hollow. Structural Sections
Brand: Permanent Steel Manufacturing Co., Ltd.
SKU: 2018134225

Hunan, ChinaPermanent Steel Manufacturing Co., Ltd.

Negotiable

1 kg

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Black

Usage

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

Section Shape

Square

Transport Package

Bundling

Trademark

PMC

Origin

China

Key features

Customizable Sizes: Square and rectangular tube sizes can be customized according to customer requirements.

Anti-Rust Protection: Available with anti-rust oil coating on both inside and outside surfaces for safe delivery.

Wide Standard Compliance: Meets ASTM A500, A513, A36, EN 10210, and EN 10219 standards for various grades.

Extensive Size Range: Square tubes up to 1000x1000mm and rectangular tubes up to 1000x800mm available.

Premium Material Quality: Manufactured using premium carbon steel compatible with latest machinery and technologies.

Comprehensive Testing: Undergoes chemical analysis, mechanical tests, X-ray, hydrostatic, and flattening tests.

OEM and Sample Support: Supports OEM services; free small samples available, customized samples in 2-3 days.

Global Export Experience: Exported to over 50 countries including USA, Germany, Japan, and Australia.

Company profile

Experienced TeamManagement CertificationIn-stock Capacity

Permanent Steel Manufacturing Co., Ltd.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2017-04-01Nearest Port: TIANJIN, SHANGHAIAverage Response Time: ≤6.05hTerms of Payment: T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryPermanent Steel Manufacturing Co., Ltd. is identified as a China-based manufacturer/factory producing steel pipes and fittings, with production bases in Shandong and Tianjin and headquarters in Hunan. The supplier has self-operated import and export rights, eight years of export experience, and exports representing 71%–90% of total sales. It offers customization from samples and reports in-stock service capacity, but lacks overseas warehouses, showrooms, agents or branches, and has not participated in offline trade shows. Service governance is weakly documented: no written supplier-service assessment procedures or approved supplier list are reported. R&D-related capabilities are limited, with no ODM, SDK, or OEM service for popular brands. ERP, OA, CRM, and SAP-based digital management are not established. Certification evidence, financial credibility evidence, and customer case evidence are insufficient.

Supplier typeThe supplier is explicitly identified as a manufacturer/factory and a limited company. Its stated business focuses on steel pipes and fittings, while its business scope also includes marine equipment, components, supporting services, and import/export activities.

After-Sales capabilityThe supplier reports in-stock service capacity and accepts multiple quotation terms, including FOB, CIF, CFR, and EXW. However, it has no overseas warehouse, showroom, agent, or branch, serves zero stated overseas countries through such coverage, and has no written service-capability assessment procedures or approved supplier list, indicating limited documented service infrastructure.

R&D capabilityThe supplier can customize products from samples, but explicitly does not provide ODM services, popular-brand OEM services, or an available SDK. It also lacks ERP integration and reports zero use of OA, CRM, and SAP systems, providing no evidence of strong product-development or digital innovation capability.

Production capacityThe supplier is a steel pipe and fittings factory with production bases in Shandong and Tianjin, 30 employees, in-stock service capacity, and stated one-month average lead times in both peak and off-season. It also has 50 qualified suppliers for service capability, although no written assessment procedure or approved supplier list is maintained.

Customization capabilityThe supplier explicitly offers customization from samples, and its company description states that it provides customized products and services. This is direct evidence of sample-based customization capability, though it does not establish broader design or ODM capability.

Product Q&A

Q:What are the main products offered?

Our main products include carbon steel seamless pipe, welded pipe, hollow sections, pipe fittings (flanges, elbows, tees, reducers, nipples), and sheets, pipes, coils, strips, bars, and channels.

Q:What are the advantages of your company?

We offer the finest quality, best-in-class products at the most advantageous rates, supported by state-of-the-art manufacturing processes and proficient services.

Q:How do you control product quality?

A dedicated quality control team supervises the entire process system. Regular tests including chemical analysis, mechanical properties, X-ray, and hydrostatic tests ensure consistent and uniform product quality.

Q:Can you provide samples and support OEM?

Yes, we support OEM. Small samples from stock can be provided for free. Customized samples typically take about 2-3 days to prepare.

Q:What are your payment terms?

We accept T/T (30% deposit in advance, balance 70% before shipment), L/C after sight (30-120 days), Western Union, PayPal, or Trade Online.