What are the accepted payment terms and currencies?

We accept T/T and L/C payments in USD, EUR, HKD, and CNY. Delivery terms include FOB, CFR, CIF, EXW, DDP, and DDU.

What is the lead time for delivery?

The average lead time is one month for both peak season and off-season.

Can you provide custom steel grades or specifications?

Yes, we support OEM services. Other steel grades and specific delivery conditions (BK, NBK, GBK, etc.) are available upon customer request.

22*2mm Flawless High Precision Cold Drawn Seamless Hydraulic Steel Pipe

Name: 22*2mm Flawless High Precision Cold Drawn Seamless Hydraulic Steel Pipe
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2138026235

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.00-20.00

300 Meters

Product profile

Customization

Available

Type

Seamless

Technique

Cold Roll and Cold Drawn

Model NO.

E215 235 255 355

Material

Carbon Steel

Surface Treatment

Ba(Bright Annealed), Electrolytic Polishing

Usage

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

Section Shape

Round

Standard

DIN 2391/En 10305/SAE J524/ASTM A269/En 10216

Delivery Condition

Ap, Ba, Cfa, Cfp

Steel Grade

St37.4 St52.4/E235 355/A822/1008-1010/Cfs360/316L

Certificate

ISO 9001 Ts16949

Secondary or Not

Non-Secondary

Application

Precision Application

Transport Package

Bundles or Boxes

Specification

OD1-250mm

Origin

China

HS Code

7306610000

Key features

High Precision & Low Tolerance: Cold drawn seamless pipe with high pressure resistance and lower tolerance for precision applications.

Multiple Surface Treatments: Available with Bright Annealing, Electrolytic Polishing, Galvanizing, and Phosphating options.

Wide Material Selection: Carbon steel and stainless steel grades including St37.4, St52.4, 316L, and more upon request.

Strict Quality Inspection: 100% Eddy Current Test, size/surface checking, and mechanical performance verification.

Versatile Applications: Suitable for hydraulic circuits, pneumatic lines, boiler pipes, oil/gas drilling, and mining.

Customizable Standards: Meets DIN 2391, EN 10305, ASTM A269, SAE J524, and other international standards.

OEM Service Available: Supports custom steel grades and delivery conditions based on customer requirements.

Professional Manufacturing: Advanced production lines ensure best surface condition with lower roughness and good mechanical performance.

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: ≤4.98h 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.

Product Q&A

Q:What are the available surface treatments?

We offer Bright Annealing (BA), Electrolytic Polishing, BA with olive green/silver/yellow/black galvanizing, and BA with black phosphating.

Q:What materials and steel grades are available?

We provide Carbon Steel and Stainless Steel. Common grades include St37.4, St52.4, E235, E355, A822, 1008-1010, Cfs360, and 316L. Other grades are available upon request.

Q:What are the standard dimensions for these pipes?

Standard sizes include OD 2-60mm with WT 0.3-10mm for DIN/EN standards, and OD 0.079-2.36 inch with WT 0.012-0.394 inch for ASTM/SAE standards.

Q:How do you guarantee product quality?

We conduct a pre-production sample before mass production and a final inspection before shipment. All products undergo 100% Eddy Current Test and mechanical performance checks.

Q:What certifications do your products have?

Our products are certified according to ISO 9001, TS16949, and EN 10204 3.1. Specific certificates like RoHS are also available for raw materials.