Industry News

Carbon steel elbows: Reliable "steel joints" for global pipeline systems.

May. 29, 2026

In the world of industrial piping, safely and smoothly completing every turn is a critical challenge. As a leading manufacturer and supplier in the industry, we are committed to engineering and developing high-performance carbon steel elbows designed to easily withstand extreme pressures and harsh environments while changing fluid direction.

Whether you are involved in oil and gas transportation, chemical processing, or heavy engineering construction, our carbon steel elbows provide robust joint support, ensuring your system operates safely, reliably, and efficiently.

Why choose our carbon steel elbows?

Superior Raw Materials: We use only steel billets from leading manufacturers, ensuring pure material composition and superior weldability from the source.

Precision Manufacturing Process: Utilizing advanced hot-push forming technology and CNC machining, we ensure uniform wall thickness and a smooth inner wall, minimizing fluid friction.

Compliant with Major Global Standards: Fully certified by international standards, strictly adhering to standards such as ASME B16.9, EN 10253, DIN, and JIS.

100% Quality Assurance: Every batch of products undergoes rigorous non-destructive testing (NDT), including ultrasonic testing (UT) and X-ray testing (RT), ensuring zero leakage upon leaving the factory.

Complete Specifications and Product Range

We offer a full range of specifications to perfectly match various engineering design needs:

1. Classification by Bending Angle

90-degree Elbow: The most commonly used pipe fitting, used to change the direction of pipelines by 90°.

45-degree Elbow: Ideal for gentle turns, effectively reducing fluid shock.

180-degree Return Elbow: Commonly used in heating coils, heat exchangers, and compact space layouts.

(Customizable angles such as 30° and 60° are available upon request.)

2. Classification by Curvature Radius

Long Radius (LR) Elbow (R=1.5D): Reduces fluid resistance and pressure drop, the industry standard for low-friction piping systems.

Short Radius (SR) Elbow (R=1.0D): Designed for industrial environments with limited space and restricted installation.

3. Core Materials and Steel Grades

ASTM A234 WPB / WPC: Globally recognized standard material suitable for medium and high temperature environments.

ASTM A420 WPL6: Specially processed for excellent impact toughness, designed specifically for low-temperature environments.

API 5L Gr.B / X42 / X52 / X60: High yield strength pipeline steel, optimized for long-distance oil and gas pipelines.

4. Wall Thickness and Pressure Rating

Wall Thickness Designations: SCH20, STD, SCH40, SCH80, SCH160, XXS.

Size Range: 1/2" to 24" (seamless elbows), 26" to 72" (welded/butt-welded elbows). Advanced Surface Protection and Packaging

To ensure your goods arrive at their destination intact and withstand harsh outdoor storage environments, we offer superior surface treatment and protection:

Surface Treatment: Black paint, rust-preventive oil, hot-dip galvanizing, or 3PE anti-corrosion coating.

Export-Specific Packaging: Plastic protective caps at both ends, fumigation-free wooden crates or sturdy pallets, and tightly wrapped with moisture-proof stretch film. Partnering with Trustworthy Piping Solutions Experts

With years of experience in foreign trade exports, we understand the stringent requirements of the international supply chain for quality and delivery time. We offer highly competitive factory-direct prices, flexible MOQs, and rapid global logistics support to help you complete your projects on schedule.

Cangzhou Aosendike Pipe Fittings Manufacturing Co., Ltd. is a large-scale manufacturer specializing in elbows, tees, reducers, and pipe caps. We can meet standards such as ASTM, ANSI, JIS, DIN, and GB, covering virtually all steel materials.

For purchasing needs or inquiries, please feel free to contact us.

Mobile: 86-13668807131

Website: https://www.authenticfitting.com/

Address: Mengcun Hui Autonomous County, Cangzhou City, Hebei Province

Email: authentic013@steelpipes-fitting.com

Latest News

  • Industry News

    Aug. 07, 2026

    Advantages of seamless carbon steel elbows

    The raw material for seamless carbon steel elbows is seamless steel pipe. The main production process involves heating and piercing a round tube billet, then rolling it using three-roll cross rolling, continuous rolling, or extrusion to set (or reduce) the outer diameter of the pipe. After cooling, it is straightened. It undergoes direct hydrostatic testing (or flaw detection), is marked, and then stored. Schxx represents the wall thickness grade; 180e (S) indicates a short-radius 180° carbon steel elbow, and 180e (L) indicates a long-radius 180° elbow; 90E (S) indicates a short-radius 90° carbon steel elbow, and 90e (L) indicates a long-radius 90° elbow; 45

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    Aug. 05, 2026

    180° carbon steel pipe elbow manufacturing process

    The most common manufacturing process for carbon steel pipe bends is hot forming. Hot forming is divided into two types: hot push bending and hot heating bending. Our 180° carbon steel pipe bends are manufactured using the hot push process. The process flow diagram is shown below.

  • Industry News

    Aug. 03, 2026

    What are the advantages of using sliding flanges?

    A sliding flange is a type of slip-on flange. Slip-on welding involves welding only the outer layer, not the inner layer. Slip-on flanges are typically used for medium- and low-pressure pipelines with a nominal pressure less than 2.5 MPa. There are four types of sealing faces for slip-on flanges: flat face, raised face (RF), FM/M, and tongue and groove (TG). Flat face is the most widely used and the cheapest. A sliding flange is a slip-on flange with a short neck. Carbon steel sliding flanges, or SO flanges, are generally cheaper than welded neck flanges, which is why customers often choose sliding flanges. As the name suggests, a sliding flange fits over a

Authentic is here to help you find the right pipe fittings and flanges for your specific needs.

FAQ

What certifications do your products have?

Our products comply with international standards such as ASTM, ANSI, JIS, DIN, and GB. We also hold various certifications to assure quality and reliability, including ISO 9001.

How can I get some samples?

If you need, we will offer you samples for free, but new customers are expected to pay express charge.

To which country have you supplied your products?

We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru, USA, Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.)

Get Quote

Have questions or need a custom solution? Reach out to us!

Our team at Authentic is here to help you find the right pipe fittings and flanges for your specific needs.

Pipe Fitting and Flange Provider

You Can Contact Us in the Following Ways

authentic013@steelpipes-fitting.com

+86 13668807131

+86 13668807131

Donghe Industrial Zone, Mengcun County, Cangzhou City, Hebei Province

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