E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
Sep. 30, 2025
Stainless steel elbows, common fittings in piping systems, are subject to a variety of standards for production and use. Commonly used stainless steel elbow standards primarily include the following:
1. Domestic Standards (China)
GB/T 12459-2017 "Steel Butt-Weld Seamless Pipe Fittings"
Specifies the dimensions, tolerances, and technical requirements for seamless butt-weld elbows made of stainless steel, alloy steel, and carbon steel.
GB/T 13401-2017 "Steel Butt-Weld Pipe Fittings"
Applies to welded elbows, tees, reducers, caps, etc.
GB/T 10752-2005 "Steel Elbows"
Specifies the technical parameters for elbows of different angles (such as 45°, 90°, and 180°).
GB/T 12459 and SH3408 and SH3409 (Petrochemical Standards)
Commonly used standards in the petrochemical industry impose stricter requirements on high-temperature and corrosion-resistant stainless steel elbows. 2. International Standards
ASME/ANSI B16.9 "Factory-Made Wrought Butt-Welding Fittings"
The most widely used international standard for butt-welding pipe fittings, covering elbows, tees, reducers, caps, and more.
ASME B16.11 "Forged Fittings, Socket-Welding and Threaded"
Mainly for small-diameter, stainless steel socket-welding and threaded elbows.
MSS SP-43
Specially for lightweight stainless steel butt-welding fittings (commonly used for low-pressure, thin-walled stainless steel pipe).
3. European Standards
EN 10253-4 "Butt-welding Pipe Fittings – Stainless Steels"
Applies to stainless steel butt-welding elbows, commonly used in EU countries.
DIN 2605
German standard that specifies the types and sizes of steel elbows. IV. Common Elbow Angle and Radius Standards
Angles: 45°, 90°, and 180° (common), with custom angles such as 30° and 60° available.
Bending Radius:
Short Radius (SR): Radius R = 1D (pipe diameter).
Long Radius (LR): Radius R = 1.5D (common).
Radiuses of 2.5D or larger may be used in special projects.
Cangzhou Aosendic Pipe Fittings Manufacturing Co., Ltd. is a large-scale manufacturer specializing in elbows, tees, reducers, elbows, and caps. We comply with ASTM, ANSI, JIS, DIN, and GB standards, covering virtually all steel types.
Please contact us for any purchasing needs or questions.
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
Industry News
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.)
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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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