What is the lead time for production?

The average lead time is one month for both peak and off-season periods, depending on material availability and order complexity.

What certifications do your products have?

Our products are certified under ISO 9001:2000 and ISO 9001:2008. We also comply with standards like ASME, DIN, ASTM, GB, and JIS, and can provide MAN Diesel certificates.

What are the main applications for these forgings?

Our forgings are widely used in Wind Power, Ship Building, Diesel Engines, Pressure Vessels, Hydraulic Systems, and Automotive industries.

4130 4140 1035 1020 Customized OEM Hot Forging Rings by Open Die

Name: 4130 4140 1035 1020 Customized OEM Hot Forging Rings by Open Die
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 1950496511

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.00-15.00

100 Pieces

Product profile

Customization

Available

Processing Object

Metal

Molding Style

Forging

Model NO.

Customized

Molding Technics

Open Die

Application

Winder Power, Ship Building, Industry Equipments

Material

Steel

Heat Treatment

Quenching

Surface Treatment

Rough Machining

Forging Tolerance

+/-0.5mm

Standard

ASME

Certification

ISO 9001:2000, ISO 9001:2008

Process

Open Die, Ring Rolling, Hot Forging, Closed Die

Serive

OEM/ODM

Quality

High Quality

Location

2 Hour From Shanghai

Ut Mt

A388 Sep1921 GB6402 Jb4730

Transport Package

Sea Wooden Packing

Specification

0.2kg/PCS-150kg/PCS

Trademark

Origin

China

Key features

Customized OEM/ODM Service: Supports OEM/ODM with customized processes including Open Die, Ring Rolling, Hot Forging, and Closed Die.

Wide Material Selection: Forges Carbon Steel, Alloy Steel, Tool Steel, Stainless Steel, and Copper with specific grades like 4130, 4140, and 1035.

Large Capacity Equipment: Features a 3150 Tons Free Forging Hydraulic Press and 5000mm Diameter Rolling Machine for large-scale production.

Strict Quality Control: Includes UT Test, PT Test, and Mechanical Properties Test with professional inspection before shipment.

Marine & Power Applications: Specializes in forgings for Wind Power, Ship Building, Diesel Engines, and Pressure Vessels with relevant certifications.

High Precision Tolerance: Achieves forging tolerance of +/-0.5mm with rough and fine machining to meet ASME and other standards.

Comprehensive Certification: Products certified under ISO 9001:2000, ISO 9001:2008, and specific standards like ASME, DIN, ASTM, GB, and JIS.

Fast Delivery Options: Offers flexible delivery terms including FOB, CFR, CIF, EXW, DDP, and DDU with stock availability checks.

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: ≤5.71h 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 materials are available for forging?

We provide Carbon Steel, Alloy Steel, Tool Steel, Stainless Steel, and Copper. Specific grades include 4130, 4140, 1035, 1020, 42CrMo4, S355NL, and various marine-grade steels.

Q:Can you handle custom OEM/ODM orders?

Yes, we support OEM and ODM services. We can customize processes such as Open Die, Ring Rolling, Hot Forging, and Closed Die according to customer drawings and specifications.

Q:What is the maximum size and weight capacity?

Ring outer diameter can be up to 3500mm, shaft length up to 10 meters, and piece weight no more than 20 tons. Our largest press handles up to 28 tons per forging.

Q:What quality inspections are performed?

We conduct UT Test, PT Test, Dimensional Inspection, and Mechanical Properties Test. A pre-production sample is made, and a final inspection is done before shipment.

Q:What are the accepted payment terms?

We accept T/T, L/C, MoneyGram. Payment currencies include USD, EUR, HKD, and CNY. Delivery terms include FOB, CFR, CIF, EXW, DDP, and DDU.