Technical

This article introduces both dimension and angularity tolerances for butt welding pipe fittings made in accordance with ASME B16.9. These fittings include elbows, tees, crosses, reducers, caps, 180° returns, and lap joint stub ends. Click the links in Table M to view the drawing and basic dimensions of various pipe fittings. *Table M: drawing and dimensions of ASME B16.9 fittings. …

Butt welding pipe fittings manufactured in accordance with ASME B16.9 may be furnished with three types of welding ends depending on its nominal wall thickness, t: When t is less than 5 mm [0.19″] for carbon steel or ferritic alloy steel and 3 mm [0.12″] for austenitic steel or nonferrous alloys, the fitting shall be furnished with cut square or …

The Table Y-1 of ASME BPVC Section II Part D has provided yield strength values for the three steel grades of ASTM A204 for various elevated temperatures. Similar to the tensile strength values, these values are only used for design calculation purpose. Yield Strengths for ASTM A204 Gr. A for Elevated Temperatures Sy & Temp.: yield strength, MPa, for metal …

The molybdenum alloy steel pressure vessel plates made in accordance with ASTM A204/ ASME SA-204 may be furnished in three grades: Grade A, Grade B, and Grade C. They are particularly intended for welded boilers and other pressure vessels. The Table U of ASME Boiler & Pressure Vessel Code Section II Part D has listed the tensile strength values of …

Applicability & Temperature Limits The molybdenum alloy steel (C-0.5Mo) pressure vessel plates made in accordance with ASTM A204/ ASME SA-204 can be furnished in three grades: Grade A (UNS K11820), Grade B (UNS K12020), Grade C (K12320), with same P number of 3. All three grades of ASTM A204 can be applied to ASME Boiler & Pressure Vessel Code Section …

General Introduction The C-0.5Mo alloy steels refer to a series of carbon-molybdenum low alloy steel grades that contains 0.5% (nominal composition) of molybdenum alloying element. The C-0.5Mo steels are mainly intended for elevated-temperature service, and the carbon content is usually limited to 0.20%; in some classes of tubing for boilers, however, carbon may be as high as 0.35%. The molybdenum …

The tensile strength and yield strength of the ASTM A192/ ASME SA-192 tube are 325 MPa and 180 MPa at room temperature, respectively. The Part D of ASME Boiler & Pressure Vessel Code Section II has stipulated tensile strengths and yield strengths at elevated temperatures. These values are only used for design calculation purpose. Tensile Strengths of ASTM A192 at …

Applicability & Maximum Temperature ASTM A192/ ASME SA-192 carbon steel seamless tubes are widely used for the construction of boilers and superheaters in cane sugar industry, fossile thermal plant, chemical and petrochemical industry. They are also called as “boiler tubes” or “superheater tubes”. The boiler tubes made of ASTM A192 steel can be applied to services in accordance with ASME …

Rockwell hardness tests shall be made on specimens from two ASTM A179 seamless tubes from each lot. The term lot applies to all tubes, prior to cutting, of the same nominal diameter and wall thickness which are produced from the same heat of steel. When final heat treatment is in a batch-type furnace, a lot shall include only those tubes …

ASME BPVC Section II Part D has listed the tensile strength values and yield strength values of ASTM A179 seamless tubes at different temperatures in Table U and Table Y-1, respectively. These values are to be used in design calculations according to the rules of the construction codes. Tensile Strengths of ASTM A179 Tubes at Temperatures *Temp.: metal temperature, °C, …

Application & product forms in process piping The ASTM A537 Class 1 steel plate with a thickness no greater than 64 mm [2-1/2″] can be applied to ASME B31.3 process piping. The plates shall be normalized with minimum yield strength and tensile strength of 50 ksi [345 MPa] and 70 ksi [485 MPa], respectively. The UNS designation of ASTM A537 …

ASTM A350 LF3 forgings can be applied to services designed in accordance with ASME B31.3 Process Piping. According to the Code, ASTM A350 LF3 may be used in general metallic piping or high pressure piping applications. For the former, basic allowable stresses in tension are listed in Table A-1 & Table A-1M; for the latter, allowable stresses in tension are …