E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
E-mail: authentic013@steelpipes-fitting.com
WhatsApp: +86 13668807131
Jul. 14, 2025
The various materials of elbows in stainless steel pipe fittings are 304, 316L, 2205, etc., which are more common. 304 316L stainless steel is a common corrosion-resistant steel, belonging to chromium-nickel stainless steel. It has good corrosion resistance and mechanical properties and is one of the widely used stainless steel materials. 2205 duplex stainless steel is a stainless steel with two phase structures of austenite and ferrite. It has high strength, excellent corrosion resistance and good welding performance, meeting the occasions of high strength and corrosion resistance, so 2205 stainless steel elbows are often used in the fields of oil and gas, chemical industry, etc.
The type tests they require under strict conditions are as follows
304 stainless steel pipe fittings type test
Appearance inspection: Check whether there are defects such as cracks, bubbles, oxidation, etc. on the surface of the pipe fittings.
Dimension inspection: Use measuring tools to check whether the outer diameter, wall thickness and other dimensions of the pipe fittings meet the design requirements.
Mechanical property test: Conduct tensile tests and hardness tests to evaluate the mechanical properties of the pipe fittings such as tensile strength, yield strength and elongation.
Corrosion resistance test: Test the corrosion resistance of pipe fittings in a specific environment through salt spray test and other methods.
316L stainless steel pipe fitting type test
Appearance inspection: Same as 304 stainless steel pipe fittings, check whether there are defects such as cracks and bubbles on the surface of the pipe fittings.
Dimension inspection: Use measuring tools to check whether the size of the pipe fittings meets the design requirements.
Mechanical property test: Perform tensile test and impact test to evaluate the mechanical properties of the pipe fittings.
Corrosion resistance test: Place the pipe fittings in the corrosive medium to observe its corrosion resistance and corrosion degree.
2205 duplex stainless steel pipe fitting type test
Appearance inspection: Check the surface quality of the pipe fittings to ensure that there are no defects such as cracks and slag inclusions.
Dimension inspection: Measure the size of the pipe fittings to ensure that it meets the design requirements.
Mechanical property test: Perform tensile test, impact test and hardness test to evaluate the mechanical properties of the pipe fittings.
Corrosion resistance test: According to the specific application scenario, pitting potential measurement, crevice corrosion test, etc. are carried out to evaluate the corrosion resistance of the pipe fittings in a specific environment.
In summary, the three stainless steel pipe fittings materials, 304, 316L and 2205, have different grades and characteristics and are suitable for different application scenarios. When conducting type tests, they need to be inspected and tested according to specific application scenarios and standard requirements.
Latest News
Industry News
Dec. 22, 2025
Why are elbows made of stainless steel?
Stainless steel stamped elbows are suitable for pipeline systems in petroleum, chemical, hydropower, natural gas, construction, and steam storage tank industries because they can be used directly as raw materials without the need for blanks. Large-diameter thin-walled carbon steel elbows can serve as low-cost pipe-making equipment and molds. By shortening the production cycle, production management costs can be significantly reduced. Especially for large steel elbows, the blank surface is smooth, with good ductility, and the stamping process is simple, precise, easy to operate, and assembly and welding processes are also very convenient. Stainless steel elbo
Industry News
Dec. 19, 2025
45° short radius elbow and long radius elbow
45° short radius elbow and long radius elbow
Industry News
Dec. 18, 2025
Methods for selecting appropriate stainless steel elbows based on operating conditions
The selection of stainless steel elbows is largely influenced by operating conditions. Here are some methods for selecting suitable stainless steel elbows based on operating conditions:
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.
You Can Contact Us in the Following Ways
authentic013@steelpipes-fitting.com
+86 13668807131
Donghe Industrial Zone, Mengcun County, Cangzhou City, Hebei Province
Get Quote
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.
中文
Русский
Español
عربي
