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What is the Difference between ANSI and ASME Flanges?
The short answer is not a lot. ANSI is an abbreviation for the American National Standards Institute, a non-profit organization composed of members from a wide cross-section of individuals associated with them in academia, government agencies, businesses and organizations that…

Advantages & Disadvantages of the Different Types of Carbon Steel
Carbon steel is one of the oldest and most widely used types of steel in the world. The uses of this carbon steel are largely determined by the trace amounts of carbon infused within the steel during the “smelting” process.…

The Use of Carbon Steel in the Flange Manufacturing Process
  Carbon steel is the most commonly used steel in the world. When carbon is infused into steel, it transforms the properties of the steel, and how it should be used, based on the amount of carbon present in the steel.…

The Purpose Of Forged Flanges
Forged flanges combine two separate machinery parts together. They can be an extension to a structure in order to make the object stronger. Industrial flanges have numerous uses including connecting sheets, pumps, pipes and structures that specifically require an intermediate…

FCI Studding Outlet Manufacturing Standards
There are standards or requirements that must be adhered to during the studding outlet manufacturing process. Below are the general standards of the FCI studded outlets: The codes, materials, and bores First and foremost we have ensured that all our…

FCI Connection Tolerances

Forged Vessel Components


  1. All dimensions are in inches.
  2. Tolerances and undercut dimensions are in accordance with ASME B16.5 and ASME Section VIII, Div. 1, Fig. 2-4.
  3. Tolerances for FCI products will be modified as necessary to maintain compliance with latest Code updates.
  4. Tolerances may be modified to meet other more stringent requirements upon Purchaser’s request.

* Specific tolerance may deviate but minimum wall thickness will be maintained.

Technical data contained in this section governed by ASME or other Codes/Specifications are subject to change and are therefore provided for information purposes only and are not to be used for design purposes. Refer to latest edition of applicable Code/Specification and addendums thereto for required design data.

Contact Us to Start Your Pressure Vessel Connection Manufacturing Project

We look forward to working with you on your project for ASME pressure vessel connections manufacturing. Our company is recognized around the world and we strive to meet and exceed client and industry standards. Contact us at (281) 441-4088 or email us at to begin your forged vessel components project and to speak to one of our expert team members.

Contact Us to Start Your Pressure Vessel Connection Manufacturing Project

Contact Us to Start Your Pressure Vessel Connection Manufacturing Project