What is the delivery time?

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

What welding techniques are used?

We use Electronic Resistance Welded (ERW), Electronic Fusion Welded (EFW), and Double Submerged Arc Welded (DSAW) techniques.

What are the common applications?

It is used for low-pressure liquid/gas/oil lines, construction, fences, doors, and pipeline transport.

ASTM A500 Cold Drawn Q235 Black Rectangular Structural Carbon Steel Tube Pipe

Name: ASTM A500 Cold Drawn Q235 Black Rectangular Structural Carbon Steel Tube Pipe
Brand: Shandong Kanghong Manufacturing Co., Limited
SKU: 2149738042

Shandong, ChinaShandong Kanghong Manufacturing Co., Limited

US$450.00-580.00

1 Ton

Product profile

Customization

Available

Warranty

5 Year

Type

Welded

Technique

Cold Drawn

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

Keyword

Carbon Seamless Tubes

Price Term

CIF CFR Fob EXW

Grade

Grade B/Q195/Q235/Q345/S235jr/S275jr/S355jr

Process

Cold Drawn/Hot Rolled

MOQ

1 Ton

Delivery Time

7-15days

Shape

Round

Transport Package

Sea Worth Packing

Specification

1/8 -24 inch

Trademark

KANGHONG

Origin

China

HS Code

7306610

Production Capacity

500000 Ton

Key features

Wide Material Grades: Available in Grade B, Q195, Q235, Q345, S235jr, S275jr, S355jr.

Flexible Customization: Supports customization from samples, designs, and flexible minor adjustments.

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

Diverse End Types: Available in plain, beveled, threaded, chamfered, grooved, and screw ends.

Comprehensive Usage: Suitable for pipeline transport, boiler pipes, oil/gas drilling, and construction.

Various Welding Techniques: Offers ERW, EFW, and DSAW welding methods for different structural needs.

Standard Compliance: Meets ASTM A53, BS1387-1985, and ASTM A106 GR.B standards.

OEM/ODM Service: Manufacturer provides OEM and ODM services with 1 R&D engineer.

Company profile

Importers and ExportersFast DeliveryQuality AssuranceProduction Process Visualization

Shandong Kanghong Manufacturing Co., Limited

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: Foreign trade business has just begun CertifiedNearest Port: TianjinAverage Response Time: ≤5.04h

AI-Powered supplier vetting

SummaryThe supplier is explicitly identified as a professional technical supplier specializing in stainless steel, carbon steel, galvanized steel, metal processing, and related products. It provides 3D software design and multiple forms of customization, including sample-based, design-based, full, minor, and flexible customization. Production is supported by factories with complete facilities, while stated quality controls include batch testing, quality assurance, and raw-material traceability. However, finished products are also described as being checked by packing staff, and no written corrective-action or complaint-handling procedures are available. The supplier states that it has exported to more than 50 countries, but another slice says foreign trade has just begun, creating inconsistency in export-history evidence. No certification information or sufficient evidence of financial credibility is provided. SDK availability is explicitly absent.

Supplier typeThe supplier is explicitly described as a professional technical supplier and as a manufacturer and seller of stainless steel, carbon steel, galvanized steel, metal products, mechanical parts, and related materials. Its registered business scope also includes metal cutting processing and import/export activities, supporting classification as a technical metal-product supplier.

After-Sales capabilityThe supplier states that it provides after-sales support and timely after-sales service through its international sales team, and presents customer-oriented service as a business principle. However, it also reports no written procedures or records for handling customer complaints or corrective and preventive actions, so the formal robustness of after-sales management is not demonstrated.

R&D capabilityThe supplier is identified as having professional technical R&D capability and offers 3D software design services with multiple customization modes. However, it explicitly has no available SDK, so the evidence supports product and design development capability but not software-development integration capability.

Production capacityThe supplier states that its production factories are located in other cities with complete supporting facilities and that it specializes in producing steel coils, sheets, pipes, mechanical parts, and related products. Quality assurance, batch testing, and raw-material traceability are also stated, although one slice says finished products are checked by packing staff, indicating that the detailed final-inspection structure is not fully clear.

Customization capabilityThe supplier explicitly offers customization from samples, customization from customer designs, full customization, minor customization, and flexible customization. Its sales team also states that it supports order customization, providing direct evidence of broad customization capability.