Do you support OEM services?

Yes, OEM service is available for our steel pipes.

What standards do your products comply with?

Our products comply with ASTM A519 and other international standards like GB, TOCT, ASTM, BS, JIS, NF, and DIN.

ASTM A519 4130 4140 High Strength Alloy Seamless Steel Pipe

Name: ASTM A519 4130 4140 High Strength Alloy Seamless Steel Pipe
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2128940325

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$2.50-7.00

1,000 kg

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Model NO.

4130 4140

Material

Alloy Steel

Surface Treatment

Slightly Oiled

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry

Section Shape

Round

Delivery Condition

Bk (+C) Bkw (+LC) Bks (+Sr) Gbk (+a) Nbk (+N)

Steel Grade

4130/30CrMo/4140/42CrMo

Certificate

ISO 9001 Ts16949

Secondary or Not

Non-Secondary

Standards

ASTM A519

Application

Automotive, Motorcycle, Motorbike, Auto Parts

Transport Package

Bundles or Boxes

Specification

OD2-60mm

Origin

China

HS Code

7304511001

Key features

High Strength Alloy Material: 4130/4140 Chromoly steel offers superior strength, toughness, and resistance to fracturing.

Cold Drawn Seamless Process: Manufactured via cold drawing for low roughness, precise dimensions, and excellent mechanical performance.

Multiple Delivery Conditions: Available in BK, BKS, GBK, NBK, and QT states to suit specific application requirements.

Wide Application Range: Ideal for automotive, aerospace, oil & gas, hydraulic tools, and heavy-duty industrial machinery.

Strict Quality Inspection: Pre-production samples and final inspections ensure products meet ASTM A519 standards.

OEM Service Available: Customized production services available for specific client requirements.

Global Shipping Options: Flexible terms including FOB, CFR, CIF, EXW, DDP, and DDU from Shanghai port.

ISO Certified Manufacturing: Factory holds ISO 9001 and TS16949 certifications for quality assurance.

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: ≤6.94h 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.