What quality standards do your pipes conform to?

Our pipes comply with ASTM A519, DIN 2391, EN 10305, and GB/T 3639, with full-process quality control including ultrasonic and hydrostatic testing.

How are quality problems handled after receipt?

Contact us within the warranty period with photos and order details. We respond within 12 hours and provide solutions like return, replacement, or compensation within 24 hours.

Carbon Steel ERW Square Hollow Section for Structural Engineering Pipe

Name: Carbon Steel ERW Square Hollow Section for Structural Engineering Pipe
Brand: Shandong Jingshang Steel Pipe Co., Ltd
SKU: 2276161235

Shandong, ChinaShandong Jingshang Steel Pipe Co., Ltd

US$620.00

1-9 Tons

US$600.00

10-49 Tons

US$550.00

50-99 Tons

US$520.00

100+ Tons

Sample price:US$10.00/branch.Request sample

Product profile

Customization

Available

After-sales Service

24-Hour Customer Service Response

Warranty

12 Months

Model NO.

10-300mm

Type

Seamless

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Black

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

Square

Brand

Shandong Jingshang

Product Name

Seamless Steel Tube

Advantage

Quality+Competitive Price+Professional Service

Surface

Bare Pipelines, Rust Proof Coating

Delivery Time

7-21 Days

Transport Package

Standard Export Sea Suitable Packaging

Specification

customizable

Trademark

Original factory

Origin

Liaocheng, Shandong, China

Production Capacity

20000tons

Key features

High Precision Manufacturing: Smooth inner/outer surface with tight dimensional tolerance and uniform wall thickness.

High Pressure Resistance: One-piece seamless structure ensures leak-proof performance under high pressure and temperature.

Long Service Life: Excellent fatigue and corrosion resistance extends service life by over 30%.

Wide Material Compatibility: Available in carbon steel, alloy steel, and stainless steel with various certifications.

Customizable Specifications: Sizes and lengths can be customized according to customer requirements and drawings.

Global Compliance: Holds CE, SGS, ISO certifications for smooth customs clearance in global markets.

Strong Structural Stability: Square section offers high bending and torsion resistance for safe structural support.

Flexible Cooperation Models: Supports OEM, long-term procurement, and regional agency distribution.

Company profile

Importers and ExportersHigh Repeat Buyers ChoicePatents AwardedIn-stock Capacity

Shandong Jingshang Steel Pipe Co., Ltd

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Flexible customization CertifiedExport Year: 2 years CertifiedNearest Port: QingdaoAverage Response Time: ≤3.35h

AI-Powered supplier vetting

SummaryShandong Jingshang Steel Pipe Co., Ltd. is a China-based limited company established in 2017, with 28 employees, more than 10 production lines, inventory capability, and stated annual output information. It demonstrates flexible customization, 3D software design services, professional technical supplier status, and new product development during the past year. Quality controls include finished-product inspection instructions, quality assurance, and raw-material traceability. However, the supplier has no management-system certification, lacks written records for complaint handling and corrective/preventive actions, and has no written procedures or records for effective supplier-service assessment. Manufacturing capacity is not supported by a valid contract with affiliated subcontractors. Overseas support is limited, with no overseas warehouse, showroom, agent, branch, or offline trade-show participation. Export activity and self-operated import/export rights are indicated, but export experience is stated...

Supplier typeThe supplier is identified as a professional technical supplier and a combined limited company, with a business scope covering metal-material manufacturing, bearing-steel production, and import/export activities. This supports classification as a manufacturing and technical supplier rather than only a trading intermediary.

CertificationsSupplier management-system certification is explicitly recorded as NIL. Although quality assurance and raw-material traceability are present, no formal management-system certification is evidenced.

R&D capabilityThe supplier is identified as a professional technical supplier, provides 3D software design services, offers flexible customization through R&D, and reportedly launched new products during the past year. These are explicit indicators of active technical and product-development capability.

Production capacityThe supplier reports more than 10 production lines, 20 professional technicians, over 100 workers in its company description, inventory capability, uniformly followed finished-product inspection instructions, and peak/off-season lead times within 15 working days. However, the manufacturing-capacity arrangement with affiliated subcontractors lacks a valid contract, creating a documented governance weakness despite the stated production resources.

Customization capabilityThe supplier explicitly customizes materials and specifications according to customer needs, samples, and drawings. Its R&D capability also provides flexible customization and 3D software design services, directly supporting customized product development.

Product Q&A

Q:What are the main cooperation models?

We offer long-term strategic procurement, customized OEM production, sample trial orders, and regional agency distribution with exclusive plans for large-volume buyers.

Q:What is the minimum order quantity (MOQ)?

The MOQ is 1 ton for trial orders and 5 tons for formal bulk orders. Customized products may have flexible MOQs based on production conditions.

Q:What is the production lead time?

Standard pipes take 7-12 working days. Customized orders with special treatments take 15-25 working days. Regular progress updates are provided.

Q:What materials and specifications do you supply?

We supply 10#, 20#, 45# carbon steel, Q355B, and 304/316 stainless steel. Specifications range from 4mm to 620mm OD and 0.5mm to 100mm wall thickness.

Q:Do you provide customized processing services?

Yes, we offer cutting, chamfering, bending, drilling, galvanizing, and heat treatment based on customer drawings and technical parameters.