Steel Alloy Forgings | Premium Forged Steel Rings & Components Manufacturer

About Jiangyin Fangyuan

Jiangyin Fangyuan Ringlike Forging & Flange Co., Ltd., established in 1993, is a leading manufacturer of high-quality steel alloy forgings and forged steel rings. As a member of the Confederation of Chinese Metalforming Industry, Chinese Wind Energy Association, and China Petroleum & Petrochemical Equipment Industry Association, we serve global clients in energy, industrial, and mechanical sectors.

Our expertise spans carbon steel, alloy steel, and stainless steel forgings with weights ranging from 20kg to 15,000kg and outer diameters up to 5000mm. We adhere to international standards including ASTM, ASME, EN, DIN, and API.

1993

Founded

5000mm

Max OD

15,000kg

Max Weight

30+

Countries Served

Our Forged Products

Precision-engineered steel alloy forgings meeting international standards for durability, strength, and performance in demanding applications.

S.S. Forged Ring Solution

Material: F304, ASTM/ASME-2013, SA182-F182
Standard: ASTM / ASME
Application: Industrial, Pressure Vessels
Heat Treatment: As Required
Weight: Custom

Heavy Duty Metal Forgings

Material: P355GH, EN10028
OD: Up to 5000mm
Application: Heavy Duty Forging Parts
Weight: 20kg - 15,000kg
Standard: EN10028

Forged Round Metal Discs

Material: ASTM A105
Heat Treatment: Normalized
Application: Heat Exchangers, Brakes
OD: Up to 1200mm
Weight: Up to 12,000kg

Hot Rolled Slewing Rings

Material: 4140, 42CrMo4
Application: Internal Gears, Slewing Bearings
Heat Treatment: Q+T or As Required
Machining: Rough or Finish
Max OD: 4000mm

Forged Gear Blanks

Material: 34CrNiMo6, 4340, C45, SAE1045
Application: Wind Power Gearboxes, Industrial Gears
Heat Treatment: Q+T
Weight: 50kg - 15,000kg
Standard: DIN, EN, ASTM

Forged Steel Sleeves

Material: Carbon & Alloy Steel
Max Length: 1200mm
Weight: 150kg - 14,000kg
Heat Treatment: Normalizing or Q+T
Machining: Rough Machining

Stainless Steel Flanges

Material: F304L, F316L, F51, F53
Standard: ASME B16.5, API 6A
OD: Up to 5000mm
Application: Pressure Vessels, Piping
Testing: UT, Corrosion Test

Valve Forgings

Material: F304, F316, F51, F53, A105
Size: Up to 48 inch
Heat Treatment: Q+T, Normalizing & Tempering
Application: Ball Valves, Industrial Valves
Standard: ASTM, ASME

Forged Steel Shafts

Material: 34CrNiMo6, C45, 18CrNiMo7-6
Surface Finish: Ra 6.3μm
Heat Treatment: Q+T
Application: Sprockets, Gears, Industrial Drives
Standard: ASME, ASTM

Alloy Steel Forged Discs

Material: 10CrMo9-10, 1.7380
Standard: DIN 17243
Heat Treatment: Q+T
Application: Turbines, Pressure Systems
Weight: 20kg - 15,000kg

Duplex Stainless Flanges

Material: F51, F53, S31803, S32750
Standard: ASTM/ASME-2013
Application: High-Pressure, Corrosive Environments
Heat Treatment: Solution Annealed
Testing: UT, PMI, NACE

Forged Wheel Blanks

Material: 4140, 42CrMo4, SCM440
OD: Up to 5000mm
Heat Treatment: Q+T
Application: Rail, Heavy Machinery, Gears
Machining: Rough or Finish

Why Choose Us?

Decades of forging excellence, strict quality control, and global compliance ensure unmatched reliability.

Industrial Expertise

30+ years in forging with specialization in energy, oil & gas, and heavy machinery sectors.

Global Standards

Compliant with ASTM, ASME, EN, DIN, API, and PED 3.1 certification available.

Rigorous Testing

UT, PMI, tensile, hardness, and corrosion testing ensure material integrity.

Global Delivery

Serving clients in over 30 countries with reliable logistics and documentation.

Quality Control & Certifications

Every forging undergoes rigorous inspection and testing to meet international quality standards. Our quality control includes:

Raw material chemical analysis
Ultrasonic Testing (UT) and Magnetic Particle Inspection (MPI)
Hardness and tensile strength verification
Dimensional accuracy checks
Heat treatment process monitoring
Final product certification (Mill Test Reports, PED 3.1)

We are committed to continuous improvement and customer satisfaction in every forged component.

Frequently Asked Questions

What materials do you offer?

We manufacture forgings in carbon steel (C35, C45, A105), alloy steel (4140, 42CrMo4, 34CrNiMo6), and stainless steel (F304, F316, F51, F53, Duplex).

What are your maximum forging dimensions?

Our maximum outer diameter is 5000mm, with weights up to 15,000kg and sleeve lengths up to 1200mm.

Do you provide machining services?

Yes, we offer both rough and finish machining as per customer drawings and specifications.

What certifications do you hold?

We comply with ASTM, ASME, EN, DIN, API, and PED standards. Mill Test Reports and PED 3.1 certificates are available upon request.

Can you produce custom forgings?

Yes, we specialize in custom forgings based on customer drawings, specifications, and material requirements.

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