Technical

The Section II Part D (M) of ASME Boiler and Pressure Vessel Code has specified values of tensile strength and yield strength at elevated temperatures for ASTM A350/ ASME SA-350 LF2 in metric units. These values are tabulated in Table U and Table Y-1, respectively, which are suitable for use in design calculations. Tensile Strengths at Elevated Temperatures *Table U; …

Code applicability & Maximum Temperature Limits Both Class 1 and Class 2 of ASTM A350/ ASME SA-350 Gr. LF2 can be used for applications in accordance with a set of ASME Boiler and Pressure Vessel Codes. These applicable Codes and maximum temperature limits are tabulated in the table below. The UNS number of Gr. LF2 is K03011; P-number is 1; …

The ASTM A350 LF2 is a forged carbon/ low-alloy steel grade for forged flanges, forged fittings and valves intended primarily for low-temperature service and requiring notch toughness testing. There are two Classes for the LF2 steels: Class 1 and Class 2. Chemical Composition Requirements *The sum of Cu, Ni, Cr, V, and Mo shall not exceed 1.00% on heat analysis. …

Technical Drawing Oval or octagonal ring shapes may be provided for the M/RTJ ring spacer flange. Only the oval ring is illustrated for simplicity. Ring dimensions shall be in accordance with ASME B16.20, except H = C + T, where C is the ring height specified in ASME B16.20 and T is the thickness of the paddle spacer. Besides, B: …

Technical Drawing The female ring-joint groove on the open end of the paddle spacer shall be cut in accordance with ASME B16.5. A single through indicator hole shall be drilled near the end of the handle. Usually, the hole diameter is 3/4″. W: handle width; T: thickness of ring spacer; B: bore diameter; L: length of handle, to be determined …

Technical Drawing Dimensions & Weights * Basic dimensions and weight for ASME B16.48 Class 150 paddle spacer (ring spacer) with FF or RF. * Basic dimensions and weight for ASME B16.48 Class 300 paddle spacer (ring spacer) with FF or RF. * Basic dimensions and weight for ASME B16.48 Class 600 paddle spacer (ring spacer) with FF or RF. * …

Technical Drawing Dimensions & Weights * Basic dimensions and weight for ASME B16.48 Class 150 paddle blanks (spade flanges) with male ring-joint facing (M/RTJ). * Basic dimensions and weight for ASME B16.48 Class 300 paddle blanks (spade flanges) with male ring-joint facing (M/RTJ). * Basic dimensions and weight for ASME B16.48 Class 600 paddle blanks (spade flanges) with male ring-joint …

Technical Drawing Dimensions & Weights * Basic dimensions and weight for ASME B16.48 Class 150 paddle blanks  (spade flanges) with female ring-joint facing (F/RTJ). * Basic dimensions and weight for ASME B16.48 Class 300 paddle blanks  (spade flanges) with female ring-joint facing (F/RTJ). * Basic dimensions and weight for ASME B16.48 Class 600 paddle blanks  (spade flanges) with female ring-joint …

Technical Drawing Dimensions & Weight * Basic dimensions and weight for ASME B16.48 Class 150 paddle blanks  (spade flanges) with FF or RF. * Basic dimensions and weight for ASME B16.48 Class 300 paddle blanks  (spade flanges) with FF or RF. * Basic dimensions and weight for ASME B16.48 Class 600 paddle blanks  (spade flanges) with FF or RF. * …

Pipe flanges made from ASTM A350 Gr. LF2 steel are usually manufactured in accordance with ASME B16.5 or ASME B16.47. It is a typical Group 1.1 material. The pressure-temperature ratings for ASTM A350 LF2 indicate maximum allowable working pressures in bar or psi units at the temperatures in °C or °F units. For intermediate temperatures, the values can be obtained …

Technical Drawing Oval or octagonal ring shapes may be provided. Only the oval ring is illustrated in the technical drawing for simplicity. Ring dimensions shall be in accordance with ASME B16.20, except H = C + T, where C is the ring height specified in ASME B16.20. The thickness of the tie bar t, shall be capable of supporting the …

Technical Drawing The female ring-joint groove dimensions shall be in accordance with ASME B16.5. Size of the hole on the tie bar (where required due to bolt spacing) shall be the same as the flange bolt hole and located such that it will not interfere with bolting between two flanges. The thickness of the tie bar dimension t, shall be …