What standards do the pipes comply with?

They comply with ASTM A500, ASTM A53, ASTM A795, BS1387, BS EN10255, EN 10219, BS 1139, and BS 39.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, and Western Union.

Wholesale Professional Large Diameter Pipe High Strength Welded Pipe C350

Name: Wholesale Professional Large Diameter Pipe High Strength Welded Pipe C350
Brand: Tianjin RuiTong Iron & Steel Co., LTD.
SKU: 1933023212

Tianjin, ChinaTianjin RuiTong Iron & Steel Co., LTD.

US$600.00-800.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

3months

Warranty

1 Years

Model NO.

21.3mm-609.6mm

Type

Welded

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Black Paint/Galvanized/Oil

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Water Transport

Section Shape

Round

Standard

ASTM A53,A500,A252,A795,BS1387,GB/T3091,ISO R65,

End of Pipe

Plain/Be/Thread/Groove

W.T

1.0-20mm

Payment

at Sight L/C, 30%T/T

Tolerance

+-1-5%

Section

Round

Length

3-12m

Main Use

Scaffolding ,Structure,Fence,Furniture

Alloy or Not

Non-Alloy

Grade

a,B,Grade250,Grade350

Trade Term

Fob/CFR/CIF

Surface

Oil,Black ,Varnish,Hot Dipped Galvanized

Packing

in Bundles with Water Proof Plastic Tarpaulin

Delivery Time

10-30days

Transport Package

with Plastic Tarpaulin

Specification

21.3-609.6

Trademark

RUITONG

Origin

Tianjin of China

HS Code

73063090

Production Capacity

500000

Key features

Wide Application Range: Suitable for pipeline transport, boiler pipes, hydraulic systems, oil/gas drilling, and construction.

Multiple Surface Treatments: Available in black paint, galvanized, or oil-coated finishes for corrosion resistance.

Flexible Customization: Offers full customization, minor adjustments, and flexible options from samples or designs.

Compliant Standards: Meets ASTM A500, A53, A795, BS1387, EN 10219, and other international standards.

High Strength Material: Made from non-alloy low carbon steel with ERW welding technology for durability.

Competitive Pricing: Wholesale professional grade pipes with low minimum order quantity of 1 unit.

Reliable Manufacturer: Established in 2003 with 122 employees and ISO45001/ISO14001 certified management.

Fast Delivery Options: Lead time within 15 workdays off-season and one month during peak season.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Tianjin RuiTong Iron & Steel Co., LTD.

Tianjin, 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: 16 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is a combined manufacturing and trading entity whose stated business includes metal-material manufacturing, wire-rope production, metal-material sales, and import/export activities. It reports broad customization, ODM and OEM capabilities, with 16 years of export experience. Quality and service processes are documented, including finished-product inspection, complaint handling, corrective actions, and supplier assessment procedures. It has inventory capacity and accepts multiple payment and quotation terms, but lacks overseas warehouses, branches, agents, showrooms, and offline trade-show experience. Financial information is represented only by reporting years, without assessable financial performance data. The supplier reports no available SDK and no established AI-based sustainable-development management capability. A significant operational concern is the absence of a valid manufacturing contract with associated subcontractors.

Supplier typeThe supplier is identified as a combined company, with business activities covering metal-material manufacturing, wire-rope products, metal-material sales, import/export, and technology import/export. Its combined facility is described as a spiral steel pipe production line, indicating a manufacturing-oriented operating profile.

After-Sales capabilityThe supplier has documented procedures and records for customer complaints and corrective/preventive actions, supporting a structured service-response process. However, it has no overseas agents or branches, no overseas warehouse, and no overseas showroom, which limits evidence of localized after-sales coverage.

R&D capabilityThe supplier reports new products during the past year, ODM services, and broad R&D-related customization capabilities. However, it has no available SDK and reports no established AI model for big-data processing and decision-enabled management, so innovation evidence is positive but incomplete.

Production capacityThe supplier operates a spiral steel pipe production line, has inventory capacity, and reports documented finished-product inspection and supplier-management procedures. It also states an average lead time of within 15 working days to one month, but the lack of a valid contract with associated subcontractors is a documented production-governance risk.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM capability, providing direct evidence of broad product-development and customization support.

Client casesThe supplier states that it provides OEM services for well-known brands and identifies its own-brand quality-control capability as RuiTong, with a stated quantity of two. These entries provide some customer or brand-related evidence, but no customer names, project details, volumes, or verifiable case descriptions are supplied.