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ASME B31.3-2016 <br /> (16) Table 323.2.2 Requirements for Low Temperature Toughness Tests for Metals <br /> These Toughness Test Requirements Are in Addition to Tests Required by the Material Specification <br /> Column B <br /> Column A Design Minimum Temperature Below <br /> Design Minimum Temperature at or Above Min.Temp.in Table A-1, Min.Temp.in Table A-1,Table A-IM, <br /> Type of Material Table A-IM,or Fig.323.2.2A or Fig.323.2.2A <br /> 1 Gray iron A-1 No additional requirements B-1 No additional requirements <br /> 2 Malleable and ductile A-2 No additional requirements B-2 Materials designated in Box 2 shall <br /> iron;carbon steel in not be used. <br /> accordance with Note(1) <br /> (a)Base Metal (b)Weld Metal and Heat Affected <br /> Zone(HAZ)[Note(2)] <br /> 3 Other carbon steels,low A-3 (a) No additional A-3 (b) Weld metal deposits shall be B-3 Except as provided in Notes(3) <br /> and intermediate alloy requirements impact tested in accordance with and (4),heat treat base metal in <br /> steels,high alloy ferritic para.323.3 if design min.temp. accordance with applicable ASTM <br /> steels,duplex stainless <-29°C(-2000,except as pro- specification listed in para.323.3.2; <br /> steels vided in Notes(3)and (4),and then impact test base metal,weld <br /> except as follows:for materials deposits,and HAZ in accordance <br /> listed for Curves C and D of with para.323.3 [see Note(2)]. <br /> Fig.323.2.2A,where correspond- When materials are used at tempera- <br /> ing welding consumables are quali- ture below the assigned curve as per- <br /> fied by impact testing at the miffed by Notes(2)and (3)of <br /> design minimum temperature or Fig.323.2.2A,weld deposits and <br /> m lower in accordance with the appli- HAZ shall be impact tested [see <br /> m cable AWS specification,additional Note (2)]. <br /> v <br /> testing is not required. <br /> d <br /> 4 Austenitic stainless A-4(a) If: A-4(b)Weld metal deposits shall be B-4 Base metal and weld metal depos- <br /> steels (1) carbon content by analysis impact tested in accordance with its shall be impact tested in accor- <br /> >0.1%;or para.323.3 if design min.temp. dance with para.323.3.See Notes <br /> (2) material is not in solution <-29°C(-20°F)except as provided (2),(5),and (6). <br /> heat treated condition; in para.323.2.2 and in Notes(5) <br /> then,impact test in accor- and (6) <br /> dance with para.323.3 for <br /> design min.temp.<-29°C <br /> (-20°F)except as provided <br /> in Notes(5)and (6) <br /> 5 Austenitic ductile iron, A-5 (a) No additional A-5 (b)Welding is not permitted B-5 Base metal shall be impact tested <br /> ASTM A571 requirements in accordance with para.323.3. Do <br /> not use<-196°C(-32010.Welding <br /> is not permitted. <br /> 6 Aluminum,copper, A-6(a) No additional A-6(b) No additional requirements B-6 Designer shall be assured by suit- <br /> nickel,and their alloys; requirements unless filler metal composition is able tests[see Note(7)]that base <br /> unalloyed titanium outside the range for base metal metal,weld deposits,and HAZ are <br /> composition;then test in accor- suitable at the design min.temp. <br /> dance with item B-6 <br /> m <br /> m <br /> 7 An unlisted material shall conform to a published specification.Where composition,heat treatment,and product form are comparable to those of <br /> a listed material,requirements for the corresponding listed material shall be met.Other unlisted materials shall be qualified as required in the <br /> 2 applicable section of column B. <br />