What standards do your pipes meet?

Our products meet standards such as ASTM A213, A335, and A519.

What surface treatments are available?

We offer black painting, varnished coating, and other treatments as needed.

A519 4140 Chromoly Tube for Bicycle

Name: A519 4140 Chromoly Tube for Bicycle
Brand: Chengdu Derbo Steel Co., Ltd
SKU: 822433305

Sichuan, ChinaChengdu Derbo Steel Co., Ltd

US$1,500.00

1 Ton

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Model NO.

A519 4140

Material

Alloy Steel

Surface Treatment

Black Painting,Varnished Coating etc

Usage

Boiler Pipe, Machinery Industry, Mining, Construction & Decoration, Mechanical Service

Section Shape

Round

Product Name

Seamless Alloy Steel Tube ASTM A519 Grade 4130

Delivery Condition

Bk,Bkw,Bks,+a,+N

End Finish

Plain End with Square Cuts or Bevelled Ends

Length Max

15.2 Meters

Key Words

4140 Tube for Bicycle

Quality

High Level

Sample

Available

Brand

Derbo

Payment

30% Deposit

Transport Package

in Bundles by Steel Strips/Pallet

Specification

8mm-480mm

Trademark

Derbo/OEM/ODM

Origin

Hebei Province, China (Mainland)

HS Code

7306500000

Production Capacity

10000 Ton/Tons Per Week

Key features

Seamless Cold Drawn Technology: High-quality seamless alloy steel tubes produced via cold drawing process.

Wide Dimensional Range: OD 10mm-90mm and wall thickness 1mm-10mm available for various applications.

Flexible Length Options: Customizable lengths from 4.8m to 15.2m, including random lengths.

Versatile Surface Treatment: Options include black painting and varnished coating for corrosion protection.

Third-Party Inspection Accepted: We accept inspections from any third-party agency to ensure quality.

Proven Industry Experience: Over 10 years of expertise serving major clients like Shell and Lukoil.

Competitive Pricing Model: Volume-based discounts available for different order quantities.

Sample Availability: Samples can be provided upon request for quality verification.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced TeamIn-stock Capacity

Chengdu Derbo Steel Co., Ltd

Sichuan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2006-08-08Nearest Port: Tianjin port, Guangzhou port, Shanghai portAverage Response Time: ≤0.87hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, CPT, Others

AI-Powered supplier vetting

SummaryThe supplier demonstrates customization and ODM capabilities, maintains inventory capacity, accepts multiple trade and service-payment terms, and reports ISO9001:2015 and CE certifications. However, its service-management procedures lack written records, and it has no overseas showroom, overseas agents or branches, overseas warehouse, or offline trade-show participation. No new products were reported in the past year, and digital management capabilities appear limited, with no ERP, CRM, SAP, SDK, or AI-based management implementation identified. Financial information supplied for the stated periods consists of zero values, which does not establish financial credibility. Evidence of named customers, completed projects, or recognized-brand OEM work is absent.

CertificationsThe supplier reports an ISO9001:2015 certificate and CE product certification capability. It also states that regular fire drills were conducted during the past year, supporting operational safety practice, although no additional certification details are provided.

After-Sales capabilityThe supplier has written procedures for service assessment, corrective and preventive action, and customer complaints, but has no written records demonstrating implementation. It lacks overseas service infrastructure and overseas warehouse capability, while offering multiple quotation and payment terms and reporting one-month lead times in both peak and off-season.

Financial creditThe supplied financial indicators for the stated periods are all recorded as zero, including operating revenue, costs, profit, gross margin, and current ratio. This information does not demonstrate financial strength or reliable financial performance.

R&D capabilityThe supplier offers ODM and multiple forms of customization, but reports no new products in the past year and no available SDK. It also reports no ERP, CRM, SAP, or AI-based management implementation, while the stated technical-transformation, big-data, and OA capability values are zero.

Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. These stated offerings provide clear evidence of broad customization capability.