Technical

Technical Drawing Dimensions & Weights * Basic dimensions for ASME B16.48 Class 150 figure-8 blanks (spectacle blind flanges) with FF or RF. * Basic dimensions for ASME B16.48 Class 300 figure-8 blanks (spectacle blind flanges) with FF or RF. * Basic dimensions for ASME B16.48 Class 600 figure-8 blanks (spectacle blind flanges) with FF or RF. * Basic dimensions for …

Carbon steel forgings, manufactured in accordance with ASTM A105, are generally used for piping applications. These forged carbon steel piping components (including flanges, fittings, and valves, etc) are used for ambient- and higher-temperature service in pressure systems. The A105N, which is designated with a suffix “N”, denotes that the A105 forging shall be furnished in normalized condition. If the forgings …

ASTM A105/ A105M, identical with ASME SA-105/ SA-105M, is the standard specification for carbon steel forgings for piping applications. The application of ASME SA-105 forgings is endorsed by a series of ASME Boiler and Pressure Vessel Codes and ASME B31 Codes. However, the misuse of this material is commonly seen in some engineering practices. A typical misuse is that some …

The Part D of ASME Boiler and Pressure Vessel Code Section II has specified both tensile strengths and yield strengths for all 4 grades of ASTM A266/ ASME SA-266 forgings at elevated temperatures. The tabulated values in the following tables are provided for design calculation purpose. Tensile strengths at elevated temperatures *Table A-1: tensile strength value TS1, ksi, for ASTM …

Forged carbon steels conforming to ASTM A266/ ASME SA-266 may be applied to the manufacture of various pressure vessel components. These pressure vessel components cover heat exchanger headers, tanks, tube sheets, nozzles, and hubbed branches, etc, which are intended for ASME Boiler and Pressure Vessel Code applications. The ASME BPVC Section II Part D has specified the application of ASTM …

ASTM A266/ A266M is the standard specification for carbon steel forgings for pressure vessel components. It covers four grades of carbon steel forgings for boilers, pressure vessels, and associated equipment: Grade 1, Grade 2, Grade 3, and Grade 4. The UNS number designation for each grade is K03506 [Grade 1], K03506 [Grade 2], K05001 [Grade 3], and K03017 [Grade 4], …

Flanges, made in accordance with American standards such as ASME B16.5, ASME B16.47, ASME B16.36, ASME B16.48, AWWA C-207, are generally designated in “classes” by “ratings” according to their design pressure. The flange pressure rating is expressed in “psi” or, as a common practice, in “pounds”. When we speak for example of “a 300 pound flange”, it is however preferable …

The forged carbon steel piping components, either flanges or fittings, made from ASTM A105 materials can be applied to ASME B31.1 power piping. The allowable stress values for power piping shall be determined in accordance with 102.3.1 of Code B31.1. These values are generally consistent with those assigned for Section I, power boilers. The maximum allowable stress values, S, in …

What’s the flange facing finish? Pipe flanges manufactured in accordance with ASME B16.47, either Series A or Series B, welding neck or blind, may be furnished with 3 types of flange facings: raused face(RF), flat face(FF), or ring joint face(RTJ). Similar to ASME B16.5 flanges, the finish of the gasket contact faces shall be judged by visual comparison with Ra …

Shijiazhuang Metalsin is a professional manufacturer of forged steel flanges and holds a large volume of ASTM A105 flanges available in stock. The entire manufacturing processes are presented as follow: Step 1: raw material preparation. These A105 billets are procured from a prominent steel mill TISCO. The production process of the steel is under the supervision of TUV inspectors for …

Forged flanges, forged fittings and other forgings made of ASTM A105 can be applied to process piping in accordance with ASME B31.3. The basic allowable stresses in tension for ASTM A105 at elevated temperatures are tabulated in Table A-1 below for design calculation. Allowable stresses in shear shall be 0.80 times the basic allowable stresses in tension, and allowable stresses …

The tensile strengths and yield strengths of ASTM A105/ ASME SA-105 forgings at elevated temperatures are provided in ASME Boiler and Pressure Vessel Code Section II Part D. These values, which are tabulated in below two tables, are provided for use in design calculations. Neither ASME Codes nor ASME material specifications require elevated temperature testing for tensile strengths and yield …