What are the payment terms?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer) as standard payment terms.

What is the range of tube dimensions?

Outer Diameter ranges from 0.079 to 2.36 inches, and Wall Thickness ranges from 0.012 to 0.394 inches.

How do you ensure product quality?

All products undergo double inspection by professional quality controllers before delivery, ensuring they meet strict quality standards.

Cold Drawn Seamless Steel Tube for Hydraulic and Pneumatic Systems

Name: Cold Drawn Seamless Steel Tube for Hydraulic and Pneumatic Systems
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2073971635

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.50-7.00

1,000 kg

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Material

Carbon Steel

Surface Treatment

Galvanized, Black Phosphated, Ba

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Mining, Special Purpose

Section Shape

Round

Standard

DIN2391,1630,2445,En10305-4,ASTM A822-450,SAE J524

Delivery Condition

Bk, Gbk, Bkw, Bks or Nbk

Steel Grade

St37.4 St52.4,E235,E355,A822,1010,Cfs360

Certificate

ISO 9001 Ts16949

Secondary or Not

Non-Secondary

Application

Automotive,Hydraulic System and Precision Device

Transport Package

Bundles or Boxes

Specification

OD2-60mm

Origin

China

HS Code

7304319000

Production Capacity

1000ton/Month

Key features

Versatile Surface Treatment: Available in Galvanized, Black Phosphated, and Bright Annealed (BA) finishes for corrosion resistance.

Wide Material Selection: Carbon steel grades including St37.4, St52.4, E235, E355, and 1010 to meet diverse strength needs.

Precision Dimensions: OD range 0.079-2.36 inch with wall thickness 0.012-0.394 inch for high-precision applications.

Multi-Industry Application: Suitable for hydraulic systems, automotive, aerospace, medical, and chemical fertilizer industries.

Strict Quality Control: Double inspection by professional quality controllers ensures only top-tier products reach customers.

Comprehensive Certifications: Certified under ISO 9001, TS16949, DIN, ASTM, and SAE standards for global compliance.

OEM/ODM Support: Customizable standard, delivery condition, and steel grade to fit specific project requirements.

Reliable Logistics: Convenient shipping via Shanghai port with one-month lead time for both peak and off-season.

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: ≤5.35h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryZhangjiagang Chewit is a China-based limited trading company established in 2010, with stated precision-tube and steel-forging manufacturing activities. The supplier reports ISO9001:2015 certification, more than 10 production lines, approximately 5,000 tons of annual seamless-steel-pipe productivity, broad export-market coverage, and one-month lead times in both peak and off-peak seasons. Its quality claims include 100% dimensional and surface checks, batch chemical and mechanical testing, and non-destructive testing upon request. Evidence is insufficient to assess after-sales service, financial credibility, and customization capability. Innovation evidence is limited to an associated forging operation reporting 11 authorized patents, while customer evidence consists of one listed buyer and one trade transaction.

Supplier typeThe supplier is identified as a China-based limited company and trade company, with stated manufacturing activities in precision steel tubes and forgings. Its product scope includes seamless, welded, carbon, stainless, hydraulic, cold-drawn, and precision tubes, indicating a specialized steel-product supplier with both trading and manufacturing positioning.

CertificationsThe supplier explicitly reports an ISO9001:2015 management-system certificate. It also describes inspection and industry-related qualifications associated with its forging operation, including API 20B, PED, and classification-society credentials, although the scope and holder of each qualification are not separately specified.

R&D capabilityThe supplier describes advanced production and inspection equipment, precision-tube manufacturing, and a forging operation with 11 authorized patents, including three invention patents. These statements provide explicit but limited evidence of process and product-development capability, mainly linked to the forging operation rather than clearly to the entire supplier entity.

Production capacityThe supplier reports more than 10 production lines, annual seamless-steel-pipe productivity of 5,000 tons, heat-treatment furnaces, inspection equipment, and manufacturing of precision tubes and forgings. The descriptions also cite a 10,000-square-meter tube operation and a substantially larger forging facility, although employee and facility figures are inconsistent across slices and should be verified.

Client casesThe supplier states that it serves wind power, oil and gas, transportation, shipbuilding, and gearbox sectors and has entered the global purchasing system of a major company since 2006. The trade data identifies one buyer and one transaction, so sector references are available but the breadth and depth of verifiable customer cases remain limited.