What is API 6A flange?

API 6A flanges in 5000# class and below are often made from A105 carbon steel with a 45K minimum yield strength, whereas the API 6BX flanges of 10000# class and above require a steel with an even higher yield strength. The most common of those is AISI 4130 with a 75K yield.

What is difference between API 6A and 6B flanges?

6BX and 6B Flanges (welding neck flanges, blind flanges, target flanges and test flanges) are fully conformed to API 6A and made of modern alloy steel via advanced manufacturing techniques. They are robust and high cost performance. 6BX flanges are of the ring joint type and designed with a raised face.

What is 6B flange?

6B flanges are of the ring joint type and are not designed for face-to-face make-up. The connection make-up bolting force reacts on the metallic ring gasket. 6BX flanges are of the ring joint type and designed with a raised face.

What is PN 40?

PN10, PN16, PN25 and PN40 specify both pressure class in bars of pressure, and metric flange dimensions (such as bolt circle diameter, hole size, bolt size etc) according to international flange standards such as ISO 7005-1 or DIN 2501 that use the metric system of measurements.

What does API 10000 mean?

There are three common types of API flanges: API 2000,3000,5000 and there are two high pressure series, API 10,000 and 15,000. The number of the series indicated corresponds to the maximum working pressure expressed in psi at a temperature of l00ºF. This maximum working pressure is affected by temperature।

What is difference between ASME and API?

Mechanical Engineer. We often get asked this simple question: “What is the difference between an ASME and API code? Well, ASME is actually a construction codes that cover design, fabrication and new construction issues but after they are put in service API codes governs the continued operation, inspection and repairs.

What are API standards?

API is the worldwide leading standards setting body for the oil and natural gas industry. Accredited by the American National Standards Institute (ANSI), API has issued nearly 700 consensus standards governing all segments of the oil and gas industry.