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30CrMo 42CrMo Precision Cold Drawn Alloy Steel Tubing
US$2.50-7.00
1,000 kg
Product profile
Customization
AvailableType
SeamlessTechnique
Cold DrawnModel NO.
ALS-19Material
Alloy SteelSurface Treatment
Slightly OiledUsage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical IndustrySection Shape
RoundDelivery Condition
Bk (+C) Bkw (+LC) Bks (+Sr) Gbk (+a) Nbk (+N)Steel Grade
4130/30CrMo/4140/42CrMoCertificate
ISO 9001 Ts16949Secondary or Not
Non-SecondaryStandards
ASTM A519Transport Package
Bundles or BoxesSpecification
OD2-60mmOrigin
ChinaHS Code
7304511001Key features
Precision Cold Drawn Technique: Seamless alloy steel tubing produced via cold drawing for high precision and smooth surface.
Multi-Grade Alloy Options: Available in 30CrMo, 42CrMo, 4130, and 4140 steel grades to meet diverse engineering needs.
Strict Quality Inspection: Double inspection by professional quality controllers ensures only qualified products are delivered.
Wide Application Scope: Suitable for pipeline transport, boilers, hydraulic systems, oil/gas drilling, and machinery industries.
Certified Manufacturing: Products comply with ISO 9001 and TS16949 standards, ensuring reliable quality and performance.
OEM Service Available: Custom delivery conditions and specifications supported for tailored customer requirements.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤5.43h 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 steel grades are available?
A:
We offer 30CrMo, 42CrMo, 4130, and 4140 steel grades, along with equivalents like 10F, 20, 45, and 35CrMo.
Q:What is the manufacturing technique?
A:
The tubing is produced using a seamless cold drawn technique, ensuring high precision and mechanical strength.
Q:What are the common applications?
A:
It is widely used for pipeline transport, boiler pipes, hydraulic/automobile pipes, oil/gas drilling, and machinery industries.
Q:What certifications do you have?
A:
Our products are certified under ISO 9001 and TS16949 standards, guaranteeing quality and reliability.
Q:Is OEM service available?
A:
Yes, we provide OEM services with customizable delivery conditions, steel grades, and specifications.
Send Inquiry
*To:
Zhangjiagang Chewit International Co., Ltd.
Zhangjiagang Chewit International Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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