ANSI B16.9 ASTM A234 WPB NACE-MR0175 ISO 15156 SOUR Reducing Tee

Product Brief Introduction

An ASTM A234 WPB NACE-MR0175 ISO 15156 SOUR Tee is a type of pipe fitting used in sour gas service applications. It is made of ASTM A234 grade WPB steel, which is a low-alloy steel that is resistant to sulfide stress cracking (SSC). The fitting is also compliant with NACE-MR0175 and ISO 15156 standards, which ensure that it meets the requirements for use in sour gas service.

About the Reducing Tee

A reducing tee is a type of pipe fitting that features three openings, with one inlet and two outlets of different sizes, arranged in the shape of a “T.” This design allows for the connection of three pipes with varying diameters in a piping system. Reducing tees are commonly used in plumbing, HVAC, and industrial applications to facilitate the smooth flow of liquids or gases while accommodating the transition between different pipe sizes.

These fittings are available in a variety of materials, including carbon steel, stainless steel, brass, copper, and PVC, among others, to suit different requirements and environmental conditions. The installation of reducing tees typically involves inserting the pipes into the respective openings and securing them using appropriate methods such as welding, threading, or compression fittings, depending on the material and design of the tee. reducing tees play a vital role in piping systems by enabling the connection of pipes with different diameters, ensuring efficient flow distribution and system functionality.

What are the requirements for pipe fittings to meet NACE-MR0175 and ISO 15156 standards?

To meet NACE-MR0175 and ISO 15156 standards, pipe fittings must adhere to specific requirements to ensure they are suitable for use in environments containing hydrogen sulfide (H2S). Some key requirements include:

Material Selection: Pipe fittings must be made from materials that are resistant to sulfide stress cracking (SSC) and stress corrosion cracking (SCC) in H2S environments. Common materials that meet these standards include carbon steel, low alloy steel, stainless steel, and nickel alloys.

Hardness Requirements: The hardness of the materials used for pipe fittings must be within specified limits to prevent cracking in H2S environments. Excessive hardness can make the material more susceptible to SSC and SCC.

Heat Treatment: Proper heat treatment processes must be followed to ensure the material properties are suitable for use in sour gas environments. Heat treatment can help improve the resistance of materials to SSC and SCC.

Testing and Certification: Pipe fittings must undergo various tests such as hardness testing, tensile testing, impact testing, and corrosion testing to verify their compliance with NACE-MR0175 and ISO 15156 standards. Certification from accredited bodies is often required to demonstrate compliance.

Chemical Analysis Of ASTM A234 WPB Fittings

• The sum of chromium and molybdenum shall not exceed 0.32%.
• The sum of Copper, Ni, Cr, and Mo shall not exceed 1.00%.
• The max carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=Carbon+manganese/6+(chromium+molybdenum+vanadium)/5+(Nickel+Copper)/15.
• For each reduction of 0.01% below the specified C max, an increase of 0.06% Mn above the specified max will be permitted, up to a max of 1.35%.

Why Choose Us?

All our products are designed and manufactured strictly in conformity with the standard of API, ANSI, AWWA, JIS, BS and DIN, etc. Most of our manufacturers have obtained ISO 9001, API 6D, TUV and CE certificates to ensure the quality stability of the products. We provide EN10204-3.1B. Mill Test Certificate for all our supplied products. C&N is a professional pipe fittings & flange manufacturer in China, We can produce high quality steel pipe fittings, Tee (Equal &Reducing).

Type:
Elbow (LR&SR ,180 Deg, 90 Deg. & 45 Deg.other customized ,3D,5D)
Tee (Equal &Reducing)
Reducer (Concentric & Eccentric)
CAP,
Stubend (Long &Short)

Material:
Stainless Steel: ASTM A403 WP 304/ 304L/ 304H/ 316/ 316L/ 317/ 317L/ 321/ 310/ 347/ 904L/ etc.
Carbon Steel: ASTM A234 WPB / A420 WPL3/ A420 WPL6/ MSS-SP-75 WPHY 42/46/52/56/60/65/70 etc.
Alloy Steel: ASTM A234 / WP5/ WP9/ WP11/ WP22/ WP91

Sizes:
1/2″ N. B. TO 24″ N. B. Seamless Pipe Fittings(BW)
1/2″ N. B. TO 72″ N. B. Welded BW

Marking:Standard/ As per request

Packing: Wooden case(Fumigation free) Or as per request
Inspection: In house and third party
Document: MTC EN10204-3.1 can be provided prior to shipment

Surface treatment: Surface galvanized, antirust coating, Epoxy & FBE Coating, Electro Polishing,

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