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Commonly used materials for butt-welded pipe fittings

Mar. 16, 2026

Depending on the working environment, welded pipe fittings can be manufactured using a variety of materials.

Carbon Steel Pipe Fittings

Carbon steel pipe fittings are the most widely used type, possessing the following advantages:

High strength

Good durability

Lower cost

Common material grades include ASTM A234 WPB.

Stainless Steel Pipe Fittings

Stainless steel pipe fittings have excellent corrosion resistance and are suitable for:

Chemical industry

Food processing industry

Marine engineering

Common grades include:

304

304L

316

316L

Alloy Steel Pipe Fittings

Alloy steel pipe fittings are mainly used in high-temperature and high-pressure environments, such as power plant piping systems.

Common materials include:

ASTM A234 WP11

ASTM A234 WP22

ASTM A234 WP91

International Standards

High-quality weld neck fittings are typically manufactured according to international standards, such as:

ASME B16.9 – Standard for factory-manufactured forged weld neck fittings

ASTM A234 – Standard for carbon and alloy steel fittings

ASTM A403 – Standard for stainless steel fittings

ANSI/ASME Fittings Dimensions and Tolerances

Following international standards ensures accurate dimensions, reliable performance, and compliance with global engineering project requirements.

Cangzhou Aosendike Pipe Fittings Manufacturing Co., Ltd. is a large-scale manufacturer specializing in elbows, tees, reducers, and pipe caps. We can produce according to ASTM, ANSI, JIS, DIN, GB, and other standards, covering virtually all steel types.

For purchasing needs or inquiries, 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

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What is ASTM A234 WPB pipe fitting?

ASTM A234 WPB fittings are a common standard for carbon steel butt-welded pipe fittings in industrial piping systems, widely used in industries such as oil, gas, chemical, power, boilers, and pressure pipelines.

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

Pipe Fittings

Flanges

Carbon Steel Elbow

Stainless Steel Elbow

Alloy Elbow

Carbon Steel Tee

PL Flange

Flat Welding Flange with Neck

Carbon Steel Welded Flange

Alloy Steel Butt Welding Flange

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.