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Precision Forged Flanges & Steel Fittings

High-quality stainless steel, carbon steel, and alloy flanges engineered for industrial excellence. Custom sizes, global standards, and unmatched durability.

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Aflange Manufacturing Facility

About Aflange Manufacturing

Hangzhou Aflangemanufacturing Co., Ltd. covers an area of over 500,000 square meters and employs more than 5,000 people. With 22 advanced production lines and imported Italian and German equipment, we deliver precision-engineered flanges and steel fittings to global markets.

After 37 years of development, we have built a strong reputation in foreign trade export, serving clients across industries including oil & gas, chemical, marine, and power generation.

37+

Years Experience

5,000+

Employees

Why Choose Us?

We combine advanced technology, strict quality control, and customer-first service to deliver reliable industrial solutions.

Certified Quality

CE, ISO9001, and ISO13485 certified manufacturing processes ensure compliance with international standards.

Large-Scale Production

Over 500,000 sqm facility with 22 production lines ensures fast turnaround and high-volume capacity.

Advanced Equipment

Imported German and Italian CNC, forging, and testing equipment for precision and consistency.

Dedicated Support

Intimate after-sales service and technical support available for all global clients.

Our Products

From standard to custom-engineered flanges, we offer a comprehensive range of industrial-grade fittings.

A105N Forged Flange Carbon Steel

A105N Forged Flange

Carbon Steel Blind Plate BL Flange

  • Material: A105N Carbon Steel
  • Type: Forged Flange
  • Standard: ANSI, ASME B16.5
Stainless Steel 304 Flange

Stainless Steel 304 Flange

Material No. 1.4301

  • Material: 1.4301 / AISI 304
  • Type: Butt Weld, Lap Flange
  • Standard: DIN, ASME, EN1092-1
ANSI B16.5 Carbon Steel Flanges

ANSI B16.5 Carbon Steel Flanges

Class 150/300/600/900

  • Material: A105, A350 LF2
  • Type: Forged, Threaded, Blind
  • Standard: ASME B16.5
Spectacle Blind Flange

Spectacle Blind Flange

ASME B16.48 Class 2500

  • Material: A350 LF2, F321
  • Class: 2500
  • Standard: ASME B16.48

Custom Flange Solutions

Tailored to Your Specifications

  • Standards: ANSI, DIN, JIS, BS, UNI
  • Diameter: Customizable
  • Face Type: RF, FF, RTJ, RJT

Flange Bolts & Fasteners

Complete Fitting Kits

  • Types: U-Bolts, Stud Bolts, Anchor Bolts
  • Materials: Carbon, Stainless Steel
  • Standards: ASTM, DIN, JIS

Inconel 600 Flanges

2.4816 / Alloy 600

  • Material: Inconel 600 (2.4816)
  • Type: Forged, Weld Neck, Slip On
  • Application: High Temp, Corrosive Environments

Flanged Heating Elements

380V 4000W Immersion Heater

  • Power: 4000W, 380V
  • Type: Flange Mount, Water Boiler
  • Design: Industrial Electric Heating
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500K+

Square Meters Facility

5,000+

Skilled Employees

37+

Years in Business

22

Production Lines

Frequently Asked Questions

Get answers to common inquiries about our products and services.

Do you offer custom flange sizes?

Yes, we can customize flange dimensions, materials, and standards according to your specific requirements. The size can be customized according to your needs.

What certifications do you hold?

We are CE, ISO9001, and ISO13485 certified, ensuring our manufacturing processes meet international quality and safety standards.

What materials do you work with?

We specialize in carbon steel (A105, A350 LF2), stainless steel (304/1.4301, 316/1.4401), alloy steel, and Inconel 600 (2.4816).

Can you supply flange fasteners and kits?

Yes, we provide complete solutions including flange bolts, U-bolts, anchor bolts, washers, and custom fastener kits.

Contact Us

Have a project or inquiry? Reach out to our team for expert support and quotations.

Ms. Zhongmin Lin
International Sales Representative

Please feel free to give your inquiry. We will reply within 24 hours.

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