E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
Nov. 28, 2025
I. Classification by Angle (Most Common)
1. Common Angles
45° Elbow
90° Elbow (Most Used)
180° Elbow (U-bend)
2. Special Angles
22.5° Elbow
60° Elbow
30°, 75°, 135° and other non-standard angles (customizable)
II. Classification by Length Radius (R)
1. Long Radius Elbow (LR)
Radius = 1.5D (D is pipe diameter)
Most commonly used in engineering
2. Short Radius Elbow (SR)
Radius = 1.0D
Suitable for installation areas with limited space
III. Classification by Nominal Diameter (DN) (Common Sizes)
Commonly used elbow diameter models (applicable to carbon steel, stainless steel, PVC, PP) Pipelines (e.g.):
DN15 (1/2")
DN20 (3/4")
DN25 (1")
DN32 (1¼")
DN40 (1½")
DN50 (2")
DN65
DN80
DN100
DN125
DN150
DN200
DN250
DN300
DN350
DN400 Larger diameters such as DN500～DN1200 are also common in large-scale projects (generally custom-made parts).
IV. Classification by Wall Thickness (Schedule)
V. (Applicable to stainless steel and carbon steel pipe fittings)
Common wall thickness grades:
SCH 10S
SCH 20
SCH 40 / 40S
SCH 80 / 80S
SCH 160
XXS (Thickened)
The greater the wall thickness, the stronger the pressure resistance.
V. Classification by Connection Method
1. Butt-welded elbow: Most widely used, high pressure resistance, suitable for medium and high pressure pipelines.
2. Socket-welded elbow: Mostly used in small-diameter, high-pressure systems.
3. Threaded elbow: Commonly used for small diameters (DN15–DN100).
4. Flange elbow: Less common, mostly used in special equipment or maintenance scenarios.
5. Adhesive/hot-melt elbow (PVC, PPR): Used in home decoration and water supply and drainage projects. VI. Classification by Material
Carbon Steel Elbows (CS)
Stainless Steel Elbows (304/316)
Alloy Steel Elbows (P11, P22, etc.)
PVC, PPR, HDPE
Cast Iron Elbows
VII. Examples of Commonly Used "Standard Names" in Engineering
For example:
DN100 90° Long Radius Welded Elbow SCH40
DN50 45° Threaded Elbow
DN200 180° Long Radius Elbow
PPR DN32 90° Hot Melt Elbow
Cangzhou Aosendike Pipe Fittings Manufacturing Co., Ltd. is a large-scale manufacturer specializing in elbows, tees, reducers, and pipe caps. We can execute ASTM, ANSI, JIS, DIN, GB, and other standards, basically covering all types of steel.
For any purchasing needs or questions, please 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
Company News
Nov. 03, 2026
From November 2 to November 5, 2026, ADIPEC 2026—a highly anticipated global energy industry exhibition—was held in the United Arab Emirates. Cangzhou Authentic Fitting Manufacturing Co., Ltd. participated in this major international event, joining professionals from the global oil, gas, energy, and industrial piping sectors to explore industry trends and identify new opportunities for collaboration.
Industry News
Nov. 02, 2026
Low-carbon steel seamless pipe
Low-carbon steel seamless pipes are seamless tubes manufactured from carbon steel with a carbon content of ≤0.25% through processes such as piercing and rolling. Characterized by moderate strength, excellent plasticity and toughness, and ease of processing, they are among the most widely used basic tubular products in industrial applications. Due to their superior workability, they are commonly referred to in the industry simply as "low-carbon steel."
Industry News
Oct. 30, 2026
How to select carbon steel elbows with the appropriate wall thickness for industrial piping systems?
In industrial piping systems, carbon steel elbows are critical connecting components primarily used to change the direction of fluid flow. They are widely employed across sectors such as oil and gas, chemical processing, power generation, shipbuilding, and water treatment.
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.)
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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.
You Can Contact Us in the Following Ways
authentic013@steelpipes-fitting.com
+86 13668807131
Donghe Industrial Zone, Mengcun County, Cangzhou City, Hebei Province
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At Authentic, we understand that every project has unique requirements. Our dedicated team is here to provide you with a customized quote tailored to your specific needs. By filling out the form below, you’ll receive competitive pricing, high-quality product details, and estimated delivery times.
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