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Steel Pipes

Premium Steel Fittings & Flanges Manufacturer

Since 2002, Estan Pipe Fittings has delivered high-quality buttweld, forged, and socket weld fittings, flanges, and branch connections to Oil & Gas, Petrochemical, Energy, and Mining industries worldwide.

100%
Quality Guarantee
Free
Sample Delivery
24/7
Customer Support

About Estan Pipe Fittings

A trusted global manufacturer and supplier of precision-engineered steel pipe fittings and flanges since 2002.

Established Excellence

Estan Pipe Fittings Co., Ltd. is a leading global manufacturer and supplier of pipe fittings and flanges. Founded in 2002, we have built a reputation for delivering high-quality, reliable components to critical industries around the world.

We serve the Oil & Gas, Petrochemical, Energy, Nuclear, and Mining industries with a comprehensive range of products that meet international standards including ASME, ASTM, ANSI, and MSS SP97.

Our commitment to quality, traceability, and customer service has made us a preferred partner for engineering firms, contractors, and plant operators across five continents.

20+
Years Experience
Global
Reach
Full
Traceability
Large
Inventory
Quality Inspection

Every fitting undergoes rigorous inspection and testing to ensure compliance and reliability.

Our Product Range

Comprehensive selection of steel fittings and flanges engineered for performance, durability, and compliance.

Buttweld Elbow

ASME B16.9 Steel Buttweld Pipe Elbow A234 WPB

Carbon steel buttweld elbow, 45° and 90° LR/SR options, ASTM A234 WPB compliant.

Standard: ASME B16.9 | Material: A234 WPB
Socket Weld Elbow

Socket Weld 90 Degree Elbow

Forged steel socket weld elbow, ideal for high-pressure systems, ASME B16.11 compliant.

Standard: ASME B16.11 | Type: 90° SW Elbow
Weldolet

Weldolet Branch Fitting

Reinforced branch connection for buttweld piping systems, MSS SP97 standard.

Standard: MSS SP97 | Type: Buttweld Outlet
Flange

Weld Neck Flange RF ASME B16.5

High-integrity weld neck flange with raised face, suitable for critical applications.

Standard: ASME B16.5 | Class: 150–2500
Reducer

Concentric Reducer ASME B16.9 A234 WPB

Smooth transition between different pipe sizes, carbon steel construction.

Standard: ASME B16.9 | Material: A234 WPB
Cap

ASME B16.11 Socket Weld Cap

Threaded or socket weld end cap for pipe termination and protection.

Standard: ASME B16.11 | Type: SW/Thd Cap
Tee

Equal Tee ASME B16.9 A234 WPB

Three-way buttweld fitting for pipeline branching, equal diameter outlets.

Standard: ASME B16.9 | Material: A234 WPB
Nipolet

ASTM A105 Nipolet MSS-SP97

Forged outlet with male thread, used for small bore connections on large pipes.

Standard: MSS SP97 | Material: A105
45 Degree Elbow

Carbon Steel Butt Weld 45 Degree Elbow

Short or long radius 45° elbow for directional changes in piping systems.

Standard: ASME B16.9 | Angle: 45°
Blind Flange

Blind Flange RF

Used to seal the end of a piping system or vessel, raised face finish.

Standard: ASME B16.5 | Type: Blind
Lateral Tee

Carbon Steel Lateral Tee

Specialty tee with branch at 45°, used for side outlet connections.

Standard: ASME B16.9 | Configuration: Lateral
Reducing Elbow

Long Radius Reducing Elbow

Combines directional change and diameter reduction in one efficient fitting.

Standard: ASME B16.9 | Type: LR Reducing

Why Choose Estan Pipe Fittings

We combine decades of expertise with a customer-first approach to deliver unmatched value and reliability.

100% Quality Guarantee

Every product undergoes rigorous inspection and testing. Full material traceability and certification provided.

Free Sample Delivery

Evaluate our product quality firsthand. We offer free samples to qualified customers worldwide.

OEM & Custom Solutions

Accept OEM orders and custom branding. We support your unique project requirements.

24/7 Customer Support

Our technical team is available around the clock, 365 days a year, to assist with inquiries and support.

Standards Compliance

All products meet ASME, ASTM, ANSI, MSS SP97, and other international standards for safety and performance.

Large Inventory & Fast Delivery

Extensive stock ensures quick turnaround. We ship globally with reliable logistics partners.

Trusted by Industry Leaders Worldwide

20+
Years in Business
50+
Countries Served
10K+
Products Shipped
99.8%
Customer Satisfaction

Frequently Asked Questions

Get answers to common inquiries about our products and services.

What materials do you manufacture in?

We produce fittings and flanges in Carbon Steel (A234 WPB, A105), Stainless Steel (A403 WP304/316, A182 F304L/316L), Alloy Steel (WP11, WP22, F11, F5, F9), and Duplex/Super Duplex (S31803, S32205, S32750).

Do you offer custom or OEM manufacturing?

Yes, we accept OEM orders and can customize products with your logo or specifications. We support custom sizes, materials, and packaging.

What standards do your products comply with?

Our products meet ASME B16.5, B16.9, B16.11, MSS SP97, ASTM, ANSI, and other international standards. Certification and test reports are available upon request.

How can I request a sample?

We offer free samples to qualified customers. Please contact our sales team with your requirements and shipping address.

What is your production and delivery time?

Standard products are often in stock for immediate shipment. Custom orders typically take 2–6 weeks depending on complexity. We provide tracking and logistics support.

Contact Estan Pipe Fittings

Reach out for quotes, samples, or technical support. We respond within hours.

Get in Touch

Contact Person
Daisey Guo
Phone
0086-182-1751-5664
Address
No.1518, First Jinyuan Rd., Jiangqiao Industrial Area, Jiading District, Shanghai, China.

Pre-Sale & After-Sale Service

  • • Professional technical support
  • • Quick response to inquiries
  • • Order tracking and logistics coordination
  • • Problem resolution and customer care

Send Us a Message

For product inquiries, quotes, or technical questions, please visit our official website to contact the sales team directly.

Visit Official Website to Contact

We guarantee a response within 2 hours during business days.

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