- Carbon Steel: – ASTM A105, ASTM A350 LF1/2, ASTM A181
- Alloy Steel: – ASTM A182F1 /F2 /F5 /F7 /F9 /F11 /F12 /F22
- Stainless Steel: – ASTM A182F6 /F304 /F304L /F316 /F316L/ F321/F347/F348
- Duplex Steel S31803 / S32205
- Super Duplex Steel S32750 S32760
ASME B16.5 Flanges
The ASME B16.5 standard covers NPS 1/2 through NPS 24 Metric / Inch steel pipe flanges and flanged fittings in pressure class 150 to class 2500. This includes levels of pressure-temperature, components, lengths, tolerances, naming, measuring and methods of designating openings for flanged fittings and pipe flanges. For piping structures two very critical flanges such as weld neck flange and blind flanges are widely used. Interchangeability is used for the word “B16.5” or “B16 5,” which corresponds to the same norm. The regular ASME B16 5 (ANSI B16 5), though, only includes measurements up to 24 inches.
The current standard and the correct one is ASME B16.5. ANSI B16.5 is common in the lingo industry, and is still widely used by architects, engineers, manufacturers and suppliers. Even though the ANSI B16.5 standards does not exist technically, it was understood as a different way of saying ASME B16.5.
ANSI B16.47 Flanges
ANSI B16.47 (Large Diameter Steel Flanges) is a standard for the flanges of steel pipes NPS 26 to NPS 60 in diameter. Nevertheless, the regular ANSI B16.47 is further split into Blind Flange and ANSI B16.47 Series A and ANSI B16.47 B flange Weldneck flange. The API 605 flange was formerly also known as the Series B flange. Terms B16.47 or B 16 47 or ANSI B 16 47 are interchangeable and conform to the same standard.
The latest version provides both metric and inch measurements and scores in units. MSSSP-44: Steel Pipeline Flanges and API 605: The ANSI B16.47 is fitted with large diameter Carbon Steel Flanges. Thus, the MSS SP-44 flanges are referred to as ANSI B16.47 Series A flanges, whereas within this standard the API 605 flanges are referred to as ANSI B16.47 Series B flanges. The ANSI B16.47 standard contains the requirements for pressure-temperature, parts, dimensions, tolerances, marking and examination of pipe flanges in sizes NPS 26 to NPS 60 and in classification grades 75, 150, 300, 400, 600 and 900 for larger sizes.
BS 10 Flanges
The British Standard BS10, 1962 is the standard cylinders, tubes, and fittings flanges and bolting design. In mm, the BS 10 flange sizes comprise boss, simple, integrally cast or etched, and neck welding style flanges, in flanges as per BS10 Tables. Although the BS 10 table of pipe flanges is obsolescent, the BS 10 flange chart for light duty spans, inexpensive stainless steel flanges, is still in use. These BS 10 type flanges could be made from heavy metals and alloys like stainless steel, carbon steels, alloys like elements including nickel, copper etc.
BS 10 flanges are recognized for both their reliability and excellent performance, making them one of the most cost-effective solutions available. The BS 10 neck flanges have good performance both in high temperature conditions and high pressure. The BS 10 table d flanges may also be made from grades such as duplex and Super duplex stainless steel, based on the end use of the component.
The German Institution for Standardization’s Deutsches Institut für Normung (DIN) is the German national standardization organization, and is the Official ISO affiliate body. DIN Flanges is a Berlin-based, German Registered Association’s designations for the division flanges. Currently there are around thirty thousand DIN standards, covering almost every technology area. DIN Flanges are most commonly specified in European countries.
DIN standard Flanges use metric measurements (mm and bar) to measure the valve and flange sizes and pressures. European firms typically employ DIN standard for flanges, even if manufacturing occurs in the United States. DIN Flanges have a wide reach, and over 30,000 DIN standards of flange provide comprehensive coverage for various products of Flange types and technologies. The DIN specification of flanges consist of DIN Numbers starting from 15,20, 25, 32, 40, 50, 65, 80 and so on up to 200.
EN 1092-1 Flanges
EN 1092-1 is an Extension of the British Standard of Specification. This supersedes the discontinued BS EN 1092-1. In EN 1092-1 of BS. A European metric range comprising Circular flanges sizes varying from DN size 10 to 4000 and 2, 5 and 100 PN designations. This EU standard defines specifications for circular steel flanges from DN 10 to DN 4000 in PN designations PN 2,5 to PN 400, and nominal measurements.
The specification defines the forms of flange and its facings, lengths, tolerances, threading, bolt sizes, surface texture, labeling, fabrics, pressure / temperature levels, and flange weights. EN 1092-1 Form 01 pn10 Flange is deposited or usable for the crude, coal, petrochemical and related industries in the following variety of materials and sizes; The components used to produce the EN 1092-1 flanges are carbon steel: A105, SS400, SF440, RST37.2, S235JRG2, P250GH, C22.8. These are also produced from Stainless Steel Grades: F304 F304L F316 F316L 316Ti, and so on.
BS 4504 Flanges
BS 4504 Flanges come under a British metric scale that includes circular flanges between PN 2.5 and PN 40 for cylinders, valves and fittings, including flanges of DN measurements. Before that it was known as BS 4504: 1969. These flanges are ideal for use under strict conditions, especially for low-pressure applications in the oil sector. A European metric standard covering Circular flanges specifications ranges from DN size 10 to 4000 and 2, 5 and 100 PN designations.
The BS 4504 Flanges consist flanges standards ANSI B16.5, ANSI B16.47, ANSI B16.36. They also consist DIN numbers like DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642. These BS 4504 Flanges are found in applications in industries such as Chemicals Fertilizers Industries, Heat Exchanger industries, Instrumentation industries and Nuclear Thermal Industries.
JIS Standard Flanges
The JIS standards are Japanese Industrial Standards that are used for the industrial activities in Japan. This was coordinated by Japanese Industrial Stands committee (JISC). The Japan Standards Association (JSA) was previously attached to METI, which is now an autonomous foundation. This has a broad variety of programs regarding Japanese and foreign standards in mind. The JIS Standard Flanges come under JIS-B division and they are classified upon the different dimensions they are made in.
These Japanese Industrial Standard Flanges types are categorized into divisions such as JIS5k, JIS10K, JIS15K, JIS20K. The JIS B2200 K Flanges are defined by replacing the K with one of the above mentioned categories such as 5K, 10K, 15K, and 20K. The Dimensions of each flanges depends upon the categories or types of flanges.