What payment terms do you accept?

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

Do you provide quality certificates?

Yes, we provide EN 10204 3.1 certificates and conduct 100% Eddy Current Testing and size/surface checks.

Can you customize the steel grade or delivery condition?

Yes, we support OEM/ODM services and can customize steel grades (e.g., St35, St45) and delivery conditions (BK, GBK, NBK, etc.) based on customer needs.

Od11mm Wt1mm 30CrMo4 42CrMo4 Chrome Plating Steel Tube

Name: Od11mm Wt1mm 30CrMo4 42CrMo4 Chrome Plating Steel Tube
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2090099545

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 and Alloy

Surface Treatment

Bright Annealing,Black Phosphating,Galvanizing

Usage

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

Section Shape

Round

Standard

DIN2391,En 10305-1, JIS G3445, ASTM A519

Delivery Condition

Bk, Gbk, Bkw, Bks or Nbk

Steel Grade

St35,St45,St52, E235, E355, 1010, Stkm 11A

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

Wide Material Range: Available in Carbon, Alloy, Stainless Steel (304/316), and various grades like 30CrMo4, 42CrMo4, St35/45/52.

Multiple Surface Treatments: Options include Bright Annealing, Black Phosphating, Galvanizing, and Chrome Plating for corrosion resistance.

Precision Dimensions: OD range 2-60mm and WT 0.3-10mm, suitable for high-precision hydraulic and automotive applications.

Strict Quality Control: 100% Eddy Current Test, size/surface check, and EN 10204 3.1 certificates ensure product reliability.

Versatile Applications: Ideal for automotive fuel lines, hydraulic systems, machinery, oil/gas drilling, and heat exchangers.

Comprehensive Standards: Complies with DIN, EN, ASTM, JIS, GB, and ISO standards for global market compatibility.

OEM/ODM Support: Customizable steel grades, delivery conditions, and specifications to meet specific customer requirements.

Fast Delivery: Standard lead time is one month for both peak and off-season 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: ≤5.22h 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 material grades?

We offer Carbon and Alloy steels including St35, St45, St52, 1010, 30CrMo4, 42CrMo4, and Stainless Steel grades like 304, 304L, 316, and 316L.

Q:What surface treatments are available?

Surface treatments include Bright Annealing, Black Phosphating, Galvanizing, and Chrome Plating to suit different environmental and usage requirements.

Q:What are the standard dimensions?

The Outer Diameter (OD) ranges from 2mm to 60mm, and Wall Thickness (WT) ranges from 0.3mm to 10mm.

Q:Which standards do your tubes comply with?

Our products comply with major international standards including DIN 2391, EN 10305-1, JIS G3445, ASTM A519/A269, and GB/T 8162.

Q:What is the lead time for orders?

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