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Premium Steel Pipe Fittings & Flanges

High-quality, cost-effective flanges, elbows, tees, reducers, and more — engineered for durability and precision in industrial pipeline systems.

Our Premium Product Range

Manufactured to international standards, our steel fittings ensure reliability, strength, and long-term performance across diverse industrial environments.

Steel Flanges

Steel Flanges

High and medium pressure flanges in stainless steel, carbon steel, and alloy steel. Compliant with ASME, ANSI, DIN, and JIS standards.

  • • Forged & machined precision
  • • Available in weld neck, slip-on, blind types
  • • Sizes: 1/2" to 60"
Pipe Elbows

Pipe Elbows

Seamless and welded elbows in 90°, 45°, and custom angles. Ideal for fluid and gas transfer systems.

  • • Material: Stainless, Carbon, Alloy Steel
  • • Long & short radius options
  • • SCH40 to XXS wall thickness
Pipe Bends

Large Pipe Bends

Custom large-radius bends produced via intermediate frequency pushing for smooth flow and reduced turbulence.

  • • Diameters up to 60"
  • • Bend radii: 1.5D to 5D
  • • Heat-treated for strength
Tees

Pipe Tees

Equal and reducing tees for branching pipelines. Precision forged and machined for leak-free connections.

  • • Materials: SS304/316, CS, AS
  • • Types: Butt-weld, Socket weld
  • • Standards: ASME B16.9
Reducers

Pipe Reducers

Concentric and eccentric reducers for connecting pipes of different diameters with minimal flow resistance.

  • • Seamless & welded construction
  • • Size range: 1/2" to 48"
  • • Material traceability & testing
Olets

Olets (Branch Outlets)

Weldolets, Threadolets, Sockolets, and Nipolets for secure branch connections in high-pressure systems.

  • • Forged from high-grade steel
  • • Full penetration welding
  • • NACE MR0175 compliant options
Nipples & Couplings

Nipples & Couplings

Short pipe connectors and couplings for joining pipes, valves, and fittings in compact spaces.

  • • Threaded, socket, or butt-weld ends
  • • Material: Carbon & Stainless Steel
  • • Pressure-rated up to 6000 PSI
Unions & Caps

Unions & Caps

Threaded unions for easy disassembly and pipe caps for sealing ends. Ideal for maintenance and system integrity.

  • • Reusable & leak-proof design
  • • Available in various thread types
  • • Heat-treated for durability
Factory Overview

Who Are We?

Hebei Haihao Group Premium Pipeline Equipment Co., Ltd. is a leading manufacturer of flanges and pipe fittings based in Mengcun County, Cangzhou City, Hebei Province, China.

With over 40 years of industry experience since 1982, we operate three advanced production branches and 20 state-of-the-art production lines. Our team includes 15 engineers, 18 assistant engineers, and 24 skilled technicians, ensuring technical excellence in every product.

1982
Founded
260+
Employees
20
Production Lines
100,000 T
Annual Output
Contact Us Today

Why Choose Us?

We combine decades of manufacturing expertise with cutting-edge technology and a customer-first philosophy to deliver unmatched value.

Industry Experience

Over 40 years in flange and pipe fitting production with a strong technical team and 20 advanced production lines.

Diverse Product Range

Full series of stainless, carbon, and alloy steel fittings — flanges, elbows, tees, reducers, olets, and more.

Certified Quality

ISO 9001:2000 certified, safety-registered for pressure components, and designated by China National Chemical Engineering.

After-Sales Support

Pre-production samples, final inspections, and dedicated service teams ensure your satisfaction from order to delivery.

1982
Year Founded
260+
Employees
20
Production Lines
100K+
Tons Annual Output

Frequently Asked Questions

Who are you?

We are a factory specializing in flanges and pipe fittings, located in Mengcun County, Cangzhou City, Hebei Province, China.

How do you guarantee quality?

We conduct pre-production sample checks before mass manufacturing and perform final inspections before every shipment.

What can I buy from you?

Flanges, forged fittings, and a full range of steel pipe fittings including elbows, tees, reducers, olets, and caps.

Why should I choose you over other suppliers?

First, we are a direct manufacturer — quality is 100% guaranteed. Second, we have a professional technical team that can customize designs. Third, we offer excellent pre-sale and after-sale service, always prioritizing customer interests.

What services do you provide?

  • Delivery Terms: FOB, CFR, CIF, EXW, Express Delivery
  • Payment Currencies: USD, EUR, CNY
  • Payment Methods: T/T, L/C, PayPal, Western Union, Cash, Escrow
  • Languages: English, Chinese

Get in Touch

Ready to discuss your project? Contact us today for a quote or technical consultation.

+86-15028682868
http://steel-fitting.com

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