What is the size range of the forged rings?

We offer dimensions from DN15 to DN4000mm and sizes from 1/2' to 100'. Various connection types and face types are available.

Do you support OEM and ODM services?

Yes, we provide both OEM and ODM services. We can customize materials, standards, and produce according to customer drawings.

What are the main applications for these forged parts?

Our forged rings and flanges are widely used in water works, shipbuilding, petrochemical & gas industry, power industry, valve industry, and general pipe connecting projects.

Forging Ring Rough Machining Free Forging Die Forging and Rolling Ring

Name: Forging Ring Rough Machining Free Forging Die Forging and Rolling Ring
Brand: Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.
SKU: 1918203636

Shanghai, ChinaShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

US$20.00-2,000.00

1 Piece

Product profile

Customization

Available

Processing Object

Metal

Molding Style

Forging

Molding Technics

Pressure Casting

Application

Machinery Parts

Material

Steel

Heat Treatment

Normalizing

Surface Treatment

Polishing

Forging Tolerance

+/-0.2mm

Standard

AISI

Certification

ISO 9001:2015

Testing Report

Mtc, Ht, Dimension Report, En 10204, 3.1

Standards

ASTM A370, API 16A

Lead Time

10-25 Working Days

Materials

Carbon Steel, Stainless Steel, Alloy Steel

Transport Package

Plywood Case

Specification

TUV/ PED 2014/68/EU

Trademark

DHDZ

Origin

China

HS Code

73261910

Production Capacity

1000 Ton/Year

Key features

Dual Certification: Dual certified to ASME/ASTM SA/A182 and EN10222-5 or DIN17440 standards.

Wide Material Range: Carbon, stainless, and alloy steels including 4130, 4140, 4340, and 316L.

Extensive Size Options: Dimensions from DN15 to DN4000mm and sizes 1/2' to 100' available.

Customization Support: Customized testing reports, standards, and materials based on customer requirements.

Quality Certifications: ISO 9001:2015, PED, and TUV certified for high-quality manufacturing.

Fast Lead Time: Off-season lead time within 15 workdays; peak season one month.

High Precision Tolerance: Forging tolerance maintained at +/-0.2mm for precision parts.

Diverse Applications: Suitable for water works, shipbuilding, petrochemical, and power industries.

Company profile

Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2001-06-01 CertifiedNearest Port: Tianjin Port, Shanghai Port, Qingdao PortAverage Response Time: ≤1.32h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. is identified as a Chinese manufacturer of steel flanges and forgings, with operations associated with Dingxiang, Shanxi, and a Shanghai head office. The supplier reports ISO9001:2015, PED, and TUV-related certifications, five production lines, 6–10 quality-control staff, and annual steel forging and flange productivity of 5,000 tons. It offers standardized and customized products, including multiple flange types, rings, shafts, blocks, disks, and other forgings. Export activity reportedly began in 2001, with exports representing 41%–50% of sales and customers in more than 15 countries. Evidence supports production, certification, customization, and international customer experience. However, after-sales capability is only described as an intended quality-related process, innovation evidence is limited to one year of total R&D engineer experience, and financial credibility cannot be assessed from the provided information.

Supplier typeThe supplier is described both as a trading company and as a manufacturer. Its formal entity information identifies Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. as a manufacturer, while its business description states that it manufactures and exports flanges and forgings in China.

CertificationsThe supplier reports an ISO9001:2015 certificate and states that it holds ISO-system, PED, and TUV certifications. Its stated compliance scope includes processes, materials, testing, storage, delivery, and after-sales service, although the specific validity and coverage of each certificate are not provided.

Production capacityThe supplier reports five production lines, 6–10 quality-control staff, 60 employees, and annual production of 5,000 tons of steel forgings and flanges. Its product scope includes large flanges, rings, square forgings, shafts, and related components, supporting a demonstrated manufacturing capability.

Customization capabilityThe supplier explicitly identifies standardization and customization as advantages and lists customized flanges and forgings among its offerings. The product range includes multiple flange configurations and forging forms, directly supporting customization capability.

Client casesThe supplier states that it serves clients in more than 15 countries across the EU, USA, Gulf area, UK, South America, Australia, and Asia, and reports export activity beginning in 2001. The provided trade information also identifies a Ukraine-related buyer record registered in June 2025, although detailed project references or customer performance evidence are not supplied.

Product Q&A

Q:What materials are available for the forged rings?

We provide Carbon Steel, Stainless Steel, and Alloy Steel. Specific grades include 4130, 4140, 4340, 316L, and many others as listed in the specifications.

Q:What is the forging tolerance?

The forging tolerance is +/-0.2mm, ensuring high precision for machinery parts.

Q:Can you provide custom testing reports?

Yes, we offer customized testing reports including MTC, HT, Dimension Report, EN 10204, and 3.1 certificates.

Q:What are the lead times for production?

The lead time is 10-25 working days. Specifically, off-season lead time is within 15 workdays, and peak season is one month.

Q:What certifications do you have?

We are ISO 9001:2015 certified, PED certified, and TUV certified. Our products are also dual certified to ASME/ASTM and EN/DIN standards.