What are the available material grades?

We offer Carbon Steel, Alloy Steel, and Stainless Steel. Specific grades include St37.4, St52.4, E235, E355, A822, 1010, Cfs360, 304, 304L, 316, and 316L.

What are the standard delivery conditions?

Delivery conditions include BK (+C), BKW (+LC), BKS (+SR), GBK (+A), and NBK (+N).

What is the size range of the pipes?

The size range varies by standard, typically OD 2-60mm with WT 0.3-10mm, or OD 3-30mm with ID 1-12.5mm.

Od8mm Wt2mm Hydraulic System Ba DIN 2391 Precision Seamless Carbon Steel Pipe

Name: Od8mm Wt2mm Hydraulic System Ba DIN 2391 Precision Seamless Carbon Steel Pipe
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2134300535

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.

ST35 45 52

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, 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

Precision Cold Drawn Process: Ensures tight size tolerance and low surface roughness for inner and outer surfaces.

Wide Material Selection: Available in Carbon Steel, Alloy Steel, and Stainless Steel grades like St37.4 and 304.

Extensive Standard Compliance: Meets DIN 2391, ASTM A822, EN 10305, JIS G3445, and other international standards.

Comprehensive Quality Inspection: Includes 100% Eddy Current Test, tensile strength, yield strength, and flattening tests.

Diverse Application Scope: Ideal for automotive, hydraulic systems, aerospace, and precision engineering machinery.

Multiple Surface Treatments: Options include Galvanized, Black Phosphated, and various delivery conditions like BK and NBK.

Flexible Size Range: Outer diameter from 2mm to 60mm and wall thickness from 0.3mm to 10mm.

Certified Quality Assurance: ISO 9001 and TS16949 certified with EN 10204 3.1 test reports available.

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: ≤7.35h 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.

Product Q&A

Q:Who are we?

We are based in Jiangsu, China, starting from 2010, with 11-50 office staff. We sell to Eastern Asia, Mid East, Eastern Europe, Southeast Asia, Northern Europe, Domestic Market, South America, and Western Europe.

Q:How can you guarantee quality?

We always produce a pre-production sample before mass production and conduct a final inspection before shipment.

Q:What products can you buy from us?

We supply Steel Pipe, Seamless Pipe, Hydraulic Oil Tube, Precision Tube, and Stainless Steel Tube.

Q:Why should you buy from us not from other suppliers?

We use advanced production lines with special oil for best surface condition, ensuring lower roughness and good mechanical performance. We also have a professional inspection team.

Q:What services can you provide?

We accept delivery terms like FOB, CFR, CIF, EXW, DDP, DDU. Payment currencies include USD, EUR, HKD, CNY. Payment types include T/T, L/C, MoneyGram. We speak English, Chinese, Spanish, and Japanese.