Are OEM and ODM services available?

Yes, both OEM and ODM services are available. We can produce custom flanges and forgings with drawings according to international standards like GB, ANSI, DIN, etc.

What quality inspection reports can be issued?

We can issue certificates of conformity, non-destructive testing reports, 3.1/3.2 certificates, mechanical properties data, chemical composition analysis, radiographic inspection, and certificate of origin.

Big Ring Forging Open Die Forging Ring Rolling 4130, 4340, 4140, A182 F22 API Forging

Name: Big Ring Forging Open Die Forging Ring Rolling 4130, 4340, 4140, A182 F22 API Forging
Brand: Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.
SKU: 1938880391

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

US$5,000.00

1-9 Pieces

US$4,500.00

10-99 Pieces

US$3,000.00

100+ Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

Processing Object

Metal

Molding Style

Forging

Model NO.

DHMG-231103

Molding Technics

Gravity Casting

Application

Machinery Parts

Material

Steel

Heat Treatment

Quenching

Surface Treatment

Polishing

Forging Tolerance

+/-0.5mm

Standard

ASME

Certification

ISO 9001:2015 & PED

Tpi Witness

Available

Color

Metal Color, Black or Golden or as Requested

Certificates

Ht, Mtc, En3.1, En3.2, Co, etc..

Materials

CS, Ss, Dss, Alloy Steel

Lead Time

10-25days

Transport Package

Plywood Case/Brandrith

Specification

OD200-8000

Trademark

DHDZ

Origin

China

HS Code

73079100

Production Capacity

12000 Ton / Year

Key features

Customizable Color Options: Metal Color, Black or Golden or as Requested

Wide Material Selection: CS, Ss, Dss, Alloy Steel, and various specialized steels

Flexible Certificate Support: Ht, Mtc, En3.1, En3.2, Co, etc. available

Fast Lead Time: 10-25 days for production and delivery

High Precision Tolerance: Forging tolerance of +/-0.5mm ensures accuracy

International Standards: Compliant with ASME, ISO 9001:2015, and PED

Extensive Industry Application: Used in petrochemical, power, aerospace, and shipbuilding

Comprehensive Testing: NDT, 3.1/3.2 certificates, and chemical analysis available

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: ≤3.42h 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 forging rings?

We offer Carbon Steel (CS), Stainless Steel (SS), Duplex Stainless Steel (DSS), and Alloy Steel. Specific grades include 4130, 4340, 4140, A182 F22, and various other specialized steels.

Q:Can the color of the product be customized?

Yes, the color is customizable. Options include Metal Color, Black, Golden, or as requested by the customer.

Q:What certifications are provided with the products?

We provide ISO 9001:2015 and PED certifications. Additionally, we can issue HT, MTC, EN3.1, EN3.2, and CO certificates based on customer requirements.

Q:What is the typical lead time for production?

The lead time is 10-25 days. During peak season, it may take up to one month, while off-season lead time is within 15 workdays.

Q:What is the forging tolerance for these rings?

The forging tolerance is +/-0.5mm, ensuring high precision for machinery parts.