Does the company provide OEM services?

Yes, OEM service is available for customized manufacturing needs.

What payment terms are accepted?

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

What standards does the product comply with?

The product complies with DIN 2391/1630/2445, EN 10305-4, and BS 3602 standards.

High Pressure Ck22 Black Carbon Hydraulic Galvanized Steel Pipe

Name: High Pressure Ck22 Black Carbon Hydraulic Galvanized Steel Pipe
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2113506014

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.50-5.00

500 kg

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Model NO.

HS-1

Material

Carbon Steel

Surface Treatment

Galvanized, Black Phosphated, Ba

Usage

Hydraulic/Automobile Pipe, Special Purpose

Section Shape

Round

Transport Package

Bundles or Boxes

Specification

as per standard or request

Origin

China

HS Code

7304319000

Production Capacity

1000ton/Month

Key features

High Pressure Resistance: Seamless steel tube designed for hydraulic and pneumatic applications with high pressure tolerance.

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

Wide Size Range: Outer Diameter 2-60mm and Wall Thickness 0.3-10mm to suit various hydraulic and automobile pipe needs.

Strict Quality Inspection: 100% Eddy Current Test, Size and surface checking, plus chemical analysis and flattening tests.

OEM Service Available: Customized manufacturing services are supported for specific client requirements.

Standard Compliance: Manufactured according to DIN 2391/1630/2445, EN 10305-4, and BS 3602 standards.

Certified Material Grades: Available in ST37.4, ST52.4, E235, E355, and other steel grades upon request.

Fast Lead Time: Average lead time is one month for both peak and off-season production periods.

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: ≤6.53h 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 surface treatments are available for this steel pipe?

We offer Galvanized, Black Phosphated, and Bright Annealed (BA) surface treatments to meet different corrosion resistance requirements.

Q:What are the standard material grades available?

Standard grades include ST37.4, ST52.4, E235, and E355. Other steel grades are also available upon request.

Q:What is the size range for the hydraulic steel tubes?

The outer diameter ranges from 2mm to 60mm, and the wall thickness ranges from 0.3mm to 10mm.

Q:What quality inspections are performed on the products?

We perform 100% Eddy Current Test, 100% Size and surface checking, Tensile strength, Yield strength, Elongation, Flattening, Flaring, and Chemical analysis.

Q:What is the average lead time for production?

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