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How to Read a Mill Test Report (MTR)?

What is a Material Test Report (MTR)? A material test report (MTR) quantifies the specific chemical and physical properties of a particular manufactured product. An MTR is a document used in the metal industry that certifies as a guarantee from the manufacturer to the supplier or end user. Coastal Flange sends Material Test Reports with…

What’s the Difference Between ASME B16.47 Series A and Series B Flanges?

Loading… ASME B16.47 Large Diameter Steel Flange Standard In November of 1980, Subcommittee C of the American Society of Mechanical Engineers (ASME) B16 began work on the B16.47 Large Diameter Steel Flange Standard to standardize dimensions, tolerances, markings, and materials for Nominal Pipe Sizes 26” to 60”. Prior to this in July of 1952, MSS-SP44…

Flange Facing for B16.5 and B16.47 Flanges

The flange face is the surface area where the gasket seats to seal the flanged connection. During fabrication the flange is always fitted perpendicular to the pipe to prevent any leakage of the connecting joint. The most common types of flange faces are the Raised Face or RF, the Flat Faced or FF, and the…

History of AWWA Ring and Hub Flanges

The American Water Works Association The American Water Works Association was founded on March 29, 1881 in St. Louis, Missouri by 22 men representing water utilities in Illinois, Indiana, Iowa, Kansas, Kentucky, and Tennessee. The founding members adopted a constitution with the goal of the association being “for the exchange of information pertaining to the…

Large Diameter Flange Factory Tour

Welcome to a tour of Coastal Flange Houston facility! Forged Steel Forged steel is the raw material used to manufacture steel pipe flanges. Coastal’s large raw material inventory allows us to provide some of the industry’s quickest turnaround. The large diameter capabilities of Coastal Flange are some of the best in the industry! Production This…

Raised Face Flange vs. Flat Faced Flange

The key identifier between the raised face and flat face flange is that the raised face is raised above the bolting circle face.  The raised face and flat face flanges are both industry standard in the pipe fitting and flange industry.  This post will showcase details on the differences and uses of the raised face…

What is a Ring Type Joint (RTJ) Flange?

 Ring Type Joint Flanges The Ring Type Joint or RTJ refers to the type of Gasket required for the Flange. The Ring Type Joint was designed for the Petroleum and Petrochemical industries where higher pressures and temperatures are present. The sealing surface is a high tolerance groove cut into the face of the Flange with…

How to Order Custom Flanges

Coastal Flange mainly focuses on industry specific flanges such as AWWA, ANSI, ASME and industry standard flanges we also specialize in custom order flanges.  With a wide range of industries, shops, and systems dependent upon high performance flanges, custom pipe flanges are essential to getting a job done right. Modified and custom flanges for specialty…

What are Metal Flange Forgings?

Forging is the process of forming and shaping Metal using a Hammering, Pressing or Rolling method. There are four main types of processes used to produce Forgings. These are Seamless Rolled Ring, Open Die, Closed Die and Cold Pressed. The Flange Industry uses two Types. The Seamless Rolled Ring and Closed Die processes. All are…

What are Lap Joint Flanges?

A Stub end Flange or more commonly called Lap Joint Flanges are used with Stub Ends. A Stub End adapter slides thru the Flange and is welded to the pipe. The Lap Joint Flange is similar to the Slip On Flange except it is flat across the face and has a radius machined at the…

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