What is the lead time for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

What are the available end types?

Ends can be plain, beveled, threaded with coupling or cap, chamfered, grooved, or screwed.

Hot Selling Welded Mild Steel Black Round Pipe

Name: Hot Selling Welded Mild Steel Black Round Pipe
Brand: Qingdao Jiahexin Steel Co., Ltd.
SKU: 813923155

Shandong, ChinaQingdao Jiahexin Steel Co., Ltd.

US$250.00

5 Tons

Product profile

Customization

Available

After-sales Service

Problem Consultation

Warranty

Problem Consultation

Model NO.

As per Customer Requirement

Type

Welded

Technique

ERW

Surface Treatment

Black, Annleaded

Usage

Pipeline Transport, Machinery Industry, Chemical Industry, Mining, Special Purpose

Section Shape

Round

Package

Bundled or in Bulk

Length

6-12m

Transport Package

Bare Packing/Bundle Packing

Specification

SGS

Trademark

Jiahexin

Origin

Qingdao, China

HS Code

73066100

Production Capacity

10000mt Per Year

Key features

Diverse Material Options: Available in Q195, Q235, Q215, C250, 10#, 20#, ST37, ST42, SS400, S235JR.

Wide Size Range: OD from 1/8' to 24' (10.3mm-609.6mm) with wall thickness 0.8-3mm.

Multiple Surface Treatments: Options include bare, black painted, galvanized, oiled, and PE/3PE/FBE coatings.

Customizable Length: Standard lengths of 3m, 6m, 9m or custom 6-12m bundles.

OEM and ODM Services: Full customization available from samples or designs with 3 R&D engineers.

Flexible Packaging: Available in bundled or bulk packaging options.

Multiple End Types: Plain, beveled, threaded, chamfered, grooved, or screwed ends.

Fast Off-Season Delivery: Lead time within 15 workdays during off-peak seasons.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExperienced TeamImporters and Exporters

Qingdao Jiahexin Steel Co., Ltd.

Shandong, 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: 10 years CertifiedNearest Port: qingdao portAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryThe supplier operates in machinery manufacturing, mechanical equipment, building-materials-related products, photovoltaic equipment, and related technical services. It reports ISO 9001:2015 certification, five production lines, 11–20 quality-control staff, annual steel-structure parts capacity of 100,000 tons, and valid manufacturing-capacity contracts with associated subcontractors. The supplier supports sample-, design-, and fully customized production and has inventory capability. It reports 10 years of export experience and that 90% of sales are exports. However, it has no overseas warehouse, showroom, agent, branch, or stated overseas-service coverage, and no offline trade-show participation. Financial records are identified by year, but no substantive financial-performance evidence is provided. Customer praise and cooperation with domestic and overseas clients are stated, but specific customer cases are not disclosed.

Supplier typeThe supplier is a manufacturer and seller of processing machinery, non-metallic mineral material forming machinery, mechanical and electrical equipment, photovoltaic equipment and components, and building-material-related products. Its registered scope also includes engineering design, equipment leasing, and technical services, indicating a diversified industrial equipment supplier rather than a narrowly specialized trading company.

CertificationsThe supplier explicitly reports holding an ISO 9001:2015 certificate. This provides direct evidence of a certified quality-management system.

After-Sales capabilityThe supplier has inventory capability and documented procedures and records for corrective and preventive actions and customer complaint handling. However, it reports no overseas warehouse, showroom, agent, branch, or overseas-service coverage, so its documented internal handling capability is stronger than its international local-support network.

R&D capabilityThe supplier reports R&D capability with an available SDK and includes mechanical-equipment R&D, industrial engineering design, solar-power technology services, and multiple technical development and consulting activities in its scope. The stated total experience of R&D engineers is 3 years, but no details on patents, dedicated R&D scale, or completed innovations are provided.

Production capacityThe supplier reports five production lines, 11–20 quality-control staff, annual steel-structure parts capacity of 100,000 tons, inventory capability, and valid manufacturing-capacity contracts with associated subcontractors. It also has quality-assurance procedures, although finished products are checked by packing staff, which indicates a basic stated inspection method rather than detailed testing coverage.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, and full customization. These three stated service levels directly support a broad ability to handle customer-specific product requirements.