What are the accepted payment terms and delivery conditions?

Accepted payment types include T/T and L/C. Delivery terms include FOB, CFR, CIF, EXW, DDP, and DDU.

Can you provide custom sizes and steel grades?

Yes, we support OEM services with custom steel grades (e.g., ST35, 45#, 4140) and sizes ranging from OD 2-60mm and WT 0.3-10mm.

Where is the company located and how long is the lead time?

We are located in Zhangjiagang, China. The average lead time is one month for both peak and off-peak seasons.

Precision Seamless Carbon Steel Pipe with Quality After-Sales Service

Name: Precision Seamless Carbon Steel Pipe with Quality After-Sales Service
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2133173875

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.50-7.00

1,000 kg

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Model NO.

NF A49-310 TU37b TU52b

Material

Carbon Steel

Surface Treatment

Bright Annealing, Black Phosphating, Galvanizing

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Heat Exchanger

Section Shape

Round

Standard

NF A49-310 Tu37b Tu52b

Delivery Condition

Bk, Gbk, Bkw, Bks or Nbk

Steel Grade

NF A49-310

Certificate

ISO 9001 Ts16949

Secondary or Not

Non-Secondary

Application

Automotive, Hydraulic System and Precision Device

Transport Package

Plywood Box or Bundles

Specification

OD2-60mm

Trademark

Origin

China

HS Code

7304319000

Key features

High Precision & Low Roughness: Cold drawn seamless pipes with precise size, low inner/outer surface roughness, and excellent mechanical performance.

Wide Standard Compliance: Complies with DIN, GB/T, EN, ASTM, JIS, ISO, and NF standards for various steel grades and applications.

Versatile Application Scope: Ideal for automotive, hydraulic systems, heat exchangers, mining machinery, aerospace, and precision engineering.

Rigorous Quality Inspection: 100% checks for size, surface, tensile strength, and chemical analysis; certified by EN 10204 3.1.

Multiple Surface Treatments: Available in Bright Annealing, Black Phosphating, and Galvanizing to suit different environmental needs.

Flexible Delivery Conditions: Offers BK, GBK, BKS, NBK, and BKW conditions to meet specific customer technical requirements.

Professional OEM Service: Supports custom steel grades, sizes, and surface treatments with advanced production lines and oil drawing.

Global Market Experience: Established since 2010 with exports to Eastern Asia, Europe, Americas, and Middle East.

Company profile

Zhangjiagang Chewit International Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤6.19h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryZhangjiagang Chewit International Co., Ltd., established in 2010, is a Chinese trade company specializing in steel pipes and forgings. The company holds ISO9001:2015 certification, operates over 10 production lines, and employs advanced inspection methods. With a diverse export market and a significant export percentage, the company demonstrates a strong international presence. They have a total of 120 employees and offer a range of products, including precision and stainless steel tubes. The company is involved in multiple industries such as automotive and shipbuilding and holds patents, showcasing its innovation capability.

Supplier typeThe supplier is a trade company located in Zhangjiagang City, Jiangsu, China, associated with the wholesale and retail industry.

CertificationsThe supplier holds the ISO9001:2015 certificate and several industry-specific certifications such as TPG and API 20B.

R&D capabilityThe supplier demonstrates innovation capability with 11 authorized patents, including 3 invention patents.

Production capacityThe supplier operates over 10 production lines with an annual output of 5000 tons for seamless steel pipes, supported by advanced production lines and inspection equipment.

Customization capabilityThe supplier conducts customizable inspection processes based on customer requests.

Client casesThe supplier is part of the global purchasing system of major companies and supplies industries like wind power, oil & gas, and transportation.

Product Q&A

Q:What are the main advantages of these cold drawn seamless steel pipes?

They offer high precision in size, excellent mechanical performance, and lower roughness on both inner and outer surfaces.

Q:Which international standards do the pipes comply with?

The pipes comply with DIN 2391, GB/T 8162/8163, EN 10305-1/10216-5, ASTM A822/A519, JIS G3445, and ISO 8535 standards.

Q:What are the typical applications for these seamless pipes?

They are widely used in automotive powertrains, hydraulic and pneumatic systems, heat exchangers, mining machinery, and aerospace.

Q:How do you guarantee the quality of the products?

We provide pre-production samples, conduct 100% size and surface checks, perform professional inspections before delivery, and offer EN 10204 3.1 certificates.

Q:What surface treatments are available for these pipes?

We offer Bright Annealing, Black Phosphating, and Galvanizing to ensure corrosion resistance and aesthetic appeal.