TABLE OF CONTENTS Issued: 6/4/2016 Revision: TABLES OF CONTENTS Page: 1 of 1 TABLE OF CONTENTS Revision Number Revision Date 77 3/24/2016 CD Material Specifications 156 5/13/2016 CM Material Specifications 48 12/15/2014 137 5/25/2016 DS Material Specifications 31 2/9/2015 MC Raw Material Specifications 95 4/23/2016 MS Raw Materials 163 4/12/2016 PM Material Specifications 155 5/25/2016 SR Raw Materials 27 1/21/2016 TBM Material Specifications 35 6/25/2015 AC Materials Ø Ø CP Materials Ø WM Material Specifications 125 5/26/2016 Ø WM Raw Materials 107 5/26/2016 UNCONTROLLED DOCUMENT Advanced Core 6/4/2016 Materials Spec Number AC * Description TC Revision Number Revision Date 77 3/24/2016 17 7 2/6/2016 6/9/2008 AC 1103 8 9 11/30/2006 5/15/2013 AC 1104 11 11/15/2013 AC 1106 AC 1107 7 7 1/6/2015 1/6/2015 AC 1108 11 3/3/2015 AC 1109 AC 1111 16 4 2/21/2014 2/25/2011 AC 1113 4 1/26/2013 AC 1114 AC 1123 3 2 10/17/2000 12/20/1991 AC 1125 7 4/27/2010 AC 1131 2 2 12/20/1991 12/20/1991 AC 1138 4 2 12/2/2011 1/6/2015 AC 1139 7 9/25/2015 AC 1141 Original Original 8/18/2010 3/24/2016 AC 1100 AC 1101 AC 1102 AC 1134 AC 1137 AC 1142 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 1 of 26 Coating 6/4/2016 Material Specifications Spec Number CD * Description TC Revision Number 156 Revision Date 5/13/2016 CD 1004 8 4/3/2000 CD 1007 CD 1008 8 Original 11/22/2004 3/28/2008 CD 1009 Original 3/28/2008 CD 1011 11 10 11/10/2010 2/27/2008 CD 1015 7 5 8/16/2007 7/17/1996 CD 1016 8 6/28/2011 CD 1017 CD 1021 5 6 7/16/1996 7/16/1996 CD 1028 5 7/16/1996 CD 1029 10 18 10/18/2013 4/24/2007 CD 1039A Original 10/22/1996 CD 1039B CD 1039C 1 Original 5/20/2009 10/22/1996 CD 1042A 7 5/13/2016 CD 1042B 5 12 7/7/1997 2/29/2008 CD 1047 6 5 11/5/2013 7/7/1997 CD 1048 6 12/23/1996 CD 1049 CD 1052 7 5 10/18/2013 8/26/1996 CD 1056 3 1/27/1997 CD 1057 CD 1058 12 12 4/4/2016 6/30/1998 CD 1059 10 7/7/1997 CD 1061 7 11 2/14/2011 9/10/2015 CD 1068 5 5 8/26/1996 1/27/1997 CD 1073 8 10/15/2003 CD 1074 5 4 12/11/2000 11/27/2000 CD 1013 CD 1014 CD 1032 CD 1045 CD 1046 CD 1062 CD 1067 CD 1075 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 2 of 26 Coating 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date CD 1077 5 CD 1078 5 7/7/1997 CD 1079 CD 1081 4 6 8/26/1996 1/27/1997 CD 1084 9 11/10/2010 CD 1085 5 8 4/11/1997 8/5/2010 CD 1089 5 5 10/22/1996 9/8/1998 CD 1090 8 3/1/2002 CD 1098 CD 1100A 7 2 11/27/2000 5/13/2016 CD 1100B 2 5/13/2016 CD 1100C CD 1102 2 Original 5/13/2016 3/3/1999 CD 1112 3 3/3/1999 CD 1115 CD 1117 10 6 5/13/2016 10/23/2006 CD 1122 8 5/13/2016 CD 1124 1 6 1/22/2013 10/23/2006 CD 1132 5 2 10/22/1996 8/10/1993 CD 1133 10 6/19/2013 CD 1134 CD 1135 8 3 2/19/2013 11/27/2000 CD 1137 8 7/12/2006 CD 1138 CD 1140 3 10 11/27/2000 10/18/2013 CD 1142 6 7/5/2007 CD 1145 3 3 8/23/2004 11/27/2000 CD 1147 1 7 5/24/2007 4/16/2001 CD 1149 4 8/16/1999 CD 1155 2 2 11/27/2000 11/27/2000 CD 1086 CD 1088 CD 1125 CD 1129 CD 1146 CD 1148 CD 1158 4/11/1997 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 3 of 26 Coating 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date CD 1160 10 11/4/2014 CD 1161 4 6/28/2011 CD 1162 CD 1163 4 5 6/28/2011 2/22/2016 CD 1174 1 11/27/2000 CD 1175 1 1 11/27/2000 11/27/2000 CD 1178 1 1 8/20/1996 8/22/1996 CD 1180 1 7/16/1996 CD 1182 CD 1184 3 9 4/26/2013 5/16/2006 CD 1185 3 6/28/2011 CD 1186 CD 1187 1 3 11/27/2000 11/2/2000 CD 1188 1 9/8/1995 CD 1189 CD 1191 1 1 9/8/1995 9/8/1995 CD 1193 3 8/16/2007 CD 1194 4 1 11/5/2013 10/4/1995 CD 1197 2 2 12/18/2008 7/25/1997 CD 1198 2 11/9/2001 CD 1199 CD 1200 7 1 5/8/2007 7/1/2014 CD 1201 2 7/1/2014 CD 1202 2 2 7/17/2014 7/1/2014 CD 1176 CD 1177 CD 1195 CD 1196 CD 1203 CD 1205 1 7/1/2014 CD 1206 Original 1 5/27/1998 7/1/2014 CD 1209 1 3 11/5/2013 11/5/2013 CD 1210 3 7/1/2014 CD 1211 1 1 7/17/2014 11/5/2013 CD 1207 CD 1208 CD 1212 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 4 of 26 Coating 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date CD 1213 1 7/17/2014 CD 1214 2 7/1/2014 CD 1215 CD 1217 2 6 7/1/2014 4/4/2016 CD 1218 3 11/5/2013 CD 1219 1 6 11/5/2013 4/4/2016 CD 1222 4 1 8/12/2014 7/1/2014 CD 1225 2 7/1/2014 CD 1226 CD 1227 1 1 7/17/2014 7/17/2014 CD 1228 2 7/17/2014 CD 1229 CD 1230 2 3 7/17/2014 8/6/2009 CD 1231 4 7/17/2014 CD 1233 CD 1234 5 4 7/17/2014 7/17/2014 CD 1235 2 7/22/2014 CD 1236 1 1 7/22/2014 7/22/2014 CD 1239 2 1 7/22/2014 7/22/2014 CD 1240 2 7/22/2014 CD 1241 CD 1242 1 3 7/22/2014 7/22/2014 CD 1243 1 7/22/2014 CD 1244 CD 1245 2 2 7/22/2014 8/12/2014 CD 1246 1 8/12/2014 CD 1247 2 1 6/10/2014 8/12/2014 CD 1250 3 2 8/12/2014 8/12/2014 CD 1251 1 8/12/2014 CD 1252 3 2 8/12/2014 8/12/2014 CD 1220 CD 1221 CD 1237 CD 1238 CD 1248 CD 1249 CD 1253 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 5 of 26 Coating 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date CD 1254 1 8/12/2014 CD 1255 1 8/12/2014 CD 1256 CD 1257 1 1 8/12/2014 9/20/2014 CD 1258 3 9/20/2014 CD 1259 1 2 9/20/2014 9/20/2014 CD 1262 1 1 9/20/2014 9/20/2014 CD 1263 1 9/20/2014 CD 1264 CD 1265 1 1 9/20/2014 9/20/2014 CD 1266 1 9/20/2014 CD 1267 CD 1268 1 Original 9/20/2014 12/12/2003 CD 1269 1 1/22/2013 CD 1270 CD 1271 2 1 9/20/2014 12/15/2011 CD 1272 2 9/20/2014 CD 1273 1 3 11/5/2013 12/15/2011 CD 1276 1 Original 9/20/2014 2/18/2004 CD 1277 1 9/20/2014 CD 1278 CD 1279 1 2 9/20/2014 6/10/2014 CD 1280 1 10/8/2014 CD 1281 CD 1282 1 1 10/7/2014 10/7/2014 CD 1283 4 10/7/2014 CD 1284 4 1 10/7/2014 10/7/2014 CD 1286 2 1 10/7/2014 10/7/2014 CD 1288 1 10/7/2014 CD 1289 1 1 10/7/2014 10/7/2014 CD 1260 CD 1261 CD 1274 CD 1275 CD 1285 CD 1287 CD 1290 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 6 of 26 Coating 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date CD 1291 1 10/7/2014 CD 1292 1 10/7/2014 CD 1293 CD 1294 1 1 10/7/2014 10/7/2014 CD 1295 2 10/7/2014 CD 1296 5 1 11/17/2011 10/7/2014 CD 1300 1 Original 1/4/2012 12/11/2009 CD 1301 1 8/12/2014 CD 1302 CD 1303 1 1 8/12/2014 8/12/2014 CD 1304 Original 2/14/2012 CD 1305 CD 1306 Original 1 4/25/2012 4/8/2014 CD 1307 Original 2/14/2013 CD 1308 Original Original 6/10/2014 6/30/2015 CD 1297 CD 1299 CD 1309 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 7 of 26 Cleaning 6/4/2016 Material Specifications Spec Number CM * Description TC Revision Number Revision Date 48 12/15/2014 CM 1011 4 3/28/2003 CM 1012A CM 1012B 5 6 3/28/2003 1/6/2011 CM 1012C 3 3/28/2003 CM 1013 6 4 9/2/2009 8/2/2011 6 10 12/13/2014 11/9/2010 CM 1017R 7 11/9/2010 CM 1018 CM 1018R 7 5 2/6/2004 2/6/2004 CM 1021 8 11/9/2010 CM 1021R CM 1023A 6 9 11/9/2010 3/3/2014 CM 1023B 10 3/3/2014 CM 1023C CM 1023D 9 9 3/3/2014 3/3/2014 CM 1023E 9 3/3/2014 CM 1023F Original 9 2/18/2014 11/9/2010 9 10 2/6/2004 11/9/2010 5 11/9/2010 6 10 2/6/2004 11/9/2010 CM 1031R 5 11/9/2010 CM 1032 CM 1033 3 3 4/15/2004 4/15/2004 CM 1034 3 4/15/2004 CM 1035 CM 1036 2 2 9/8/2003 9/8/2003 CM 1037 4 4/21/2009 CM 1014 CM 1016 CM 1017 CM 1024 CM 1028 CM 1029 CM 1029R CM 1030 CM 1031 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 8 of 26 Core 6/4/2016 Materials Spec Number CP * Description TC Revision Number Revision Date 137 5/25/2016 CP 1000 3 7/25/2006 CP 1001 CP 1002 1 2 1/9/2004 1/9/2004 CP 1006 4 7/17/2006 CP 1007 2 2 5/25/2016 8/9/2011 CP 1014 1 Original 8/20/2007 11/9/2006 CP 1015 Original 3/18/2002 CP 1016 CP 1017 1 5 6/14/2011 2/8/2016 CP 1019 2 9/22/2005 CP 1020 CP 1021 1 1 4/30/2004 4/2/2004 CP 1022 2 9/21/2015 CP 1024 CP 1025 2 1 8/21/2007 8/28/2012 CP 1026 1 1/24/2012 CP 1027 3 Original 9/11/2014 5/13/2010 CP 1033 Original Original 5/13/2010 4/30/2012 CP 1035 Original 12/4/2015 CP 1036 CP 1037 1 Original 5/25/2016 11/6/2015 CP 1040 1 4/4/2016 CP 1104 CP 1105 13 7 8/28/2012 4/11/2008 CP 1118 9 6/26/2008 CP 1121 4 17 6/6/2007 8/30/2005 CP 1131 19 13 1/5/2012 3/26/2014 CP 1132 16 2/18/2010 CP 1137 11 21 6/6/2013 7/5/2007 CP 1008 CP 1009 CP 1030 CP 1031 CP 1129 CP 1130 CP 1138 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 9 of 26 Core 6/4/2016 Materials Spec Number * Description Revision Number Revision Date CP 1140 17 4/11/2014 CP 1141 11 8/24/2010 CP 1142 CP 1143 10 4 2/28/2011 4/18/2007 CP 1145 3 2/28/2011 CP 1147 5 3 6/19/2007 2/20/2006 CP 1153 9 7 12/13/2014 4/11/2014 CP 1154 11 1/11/2007 CP 1156 CP 1157 16 10 2/1/2014 7/16/2014 CP 1158 8 12/9/2005 CP 1159 CP 1160 9 5 6/19/2007 2/28/2012 CP 1162 11 8/13/2007 CP 1164 CP 1165 8 9 6/11/2010 9/13/2007 CP 1168 17 4/18/2007 CP 1171 10 4 3/19/2012 10/20/2003 CP 1177 8 7 2/28/2011 1/26/2013 CP 1182 7 8/7/2013 CP 1183 9 2 8/7/2013 5/23/2006 CP 1148 CP 1150 CP 1174 CP 1176 CP 1199 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 10 of 26 DS 6/4/2016 Material Specifications Spec Number DS * Description TC Revision Number Revision Date 31 2/9/2015 DS 1000 9 5/21/2007 DS 1001 DS 1002 8 5 8/25/2005 8/25/2005 DS 1003 7 2/9/2015 2 10 2/9/2015 1/19/2009 DS 1005B 6 6 1/19/2009 1/19/2009 DS 1006 8 1/15/2010 DS 1007 DS 1008 4 6 8/25/2005 1/15/2010 DS 1009 4 8/25/2005 DS 1010 2 8/25/2005 DS 1003A DS 1004 DS 1005A * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 11 of 26 Crucible 6/4/2016 Raw Material Specifications Spec Number MC * Description TC Revision Number Revision Date 95 4/23/2016 MC 1001 18 3/7/2014 MC 1001B 2 18 3/7/2014 3/7/2014 1 3/7/2014 22 12 10/10/2011 3/18/2002 10 Original 10/15/2008 4/8/2011 MC 1012 4 12/20/2002 MC 1014 MC 1015 11 14 5/1/2014 5/1/2014 MC 1016 12 5/1/2014 MC 1017 18 1 5/1/2014 5/1/2014 4 4/23/2016 MC 1021 Original 6 10/10/2013 2/10/2000 MC 1023 14 5/1/2014 MC 1024 14 15 5/1/2014 5/1/2014 MC 1032 7 3 5/1/2014 5/1/2014 MC 1033 19 4/23/2016 MC 1035 MC 1038 1 1 3/11/1994 5/8/2014 MC 1041 3 3/7/2014 MC 1040 3 4 1/17/2014 11/28/2006 MC 1002 MC 1002B MC 1004 MC 1005 MC 1006 MC 1006B MC 1017B MC 1018 MC 1018B MC 1025 MC 1030 MC 1042 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 12 of 26 Mono‐Shell 6/4/2016 Raw Materials Spec Number MS * Description TC Revision Number 163 Revision Date 4/12/2016 MS 1001A 13 7/9/2012 MS 1002A MS 1003 16 2 5/30/2014 3/30/2001 MS 1004 2 3/30/2001 MS 1005 8 1 2/24/2014 2/16/2016 Original 1 2/24/2014 4/28/2014 MS 1005A MS 1005B MS 1005C MS 1008B 7 9/13/2013 MS 1008C MS 1010A Original 7 5/30/2014 1/16/2014 MS 1010B 9 1/16/2014 MS 1010C MS 1010D 7 9 1/16/2014 1/16/2014 MS 1010N 1 1/23/2015 MS 1010J MS 1010K 1 1 1/23/2015 1/23/2015 MS 1010M 2 1/23/2015 MS 1010L 1 30 1/23/2015 8/5/2015 MS 1012C 18 16 7/30/2010 9/29/2015 MS 1012D 14 9/29/2015 MS 1012H MS 1012J 2 2 9/29/2015 9/29/2015 MS 1012G 6 6/11/2008 MS 1013 MS 1017 2 6 3/30/2001 6/19/2013 MS 1018 3 10/25/1999 MS 1019 2 Original 5/15/1995 11/24/2010 MS 1021A 5 5 11/14/2013 12/2/2009 MS 1021B 8 2/16/2016 MS 1024 2 2 3/30/2001 3/30/2001 MS 1012A MS 1012B MS 1019B MS 1020C MS 1028 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 13 of 26 Mono‐Shell 6/4/2016 Raw Materials Spec Number * Description Revision Number Revision Date MS 1031 2 MS 1032 3 3/7/2000 MS 1036 MS 1037 4 3 7/19/2001 11/5/2001 MS 1040 8 7/24/2009 MS 1041 16 11 1/23/2016 7/30/2010 3 4 3/30/2001 3/10/1997 MS 1042 MS 1046 MS 1053 3/30/2001 MS 1058 4 1/7/2000 MS 1060 13 13 1/23/2016 2/16/2016 1 7/9/2012 2 18 2/16/2016 12/2/2014 1 12/2/2014 MS 1064R88 Original Original 2/23/2015 2/23/2015 MS 1064RFQ 2 7/9/2012 MS 1065 8 2 5/2/2008 5/28/1998 4 2 2/16/2016 1/7/2000 MS 1068A Original 1/7/2000 MS 1068B Original 2 1/7/2000 6/19/2013 11 3/14/2013 MS 1069T 3 1 3/14/2013 12/4/2013 MS 1070C 10 11/17/2011 6 2 6/19/2013 1/16/2014 MS 1075 1 5 3/1/1995 1/8/2013 MS 1077 Original 1/7/2000 MS 1078 1 2 7/30/2010 10/31/2002 MS 1063 MS 1063RFQ MS 1063T MS 1064 MS 1064R MS 1064R75 MS 1066 MS 1067 MS 1068 MS 1068C MS 1069 MS 1069RFQ MS 1071 MS 1072 MS 1073 MS 1079 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 14 of 26 Mono‐Shell 6/4/2016 Raw Materials Spec Number * Description Revision Number Revision Date MS 1080 1 1/9/2004 MS 1081 Original 3/30/2001 MS 1082 MS 1083 Original Original 3/30/2001 3/30/2001 MS 1084 2 4/8/2009 MS 1085 1 Original 12/10/2015 3/30/2001 MS 1088 2 Original 6/29/2015 11/2/2001 MS 1089 5 2/16/2016 MS 1089A MS 1090 4 3 2/16/2016 5/5/2011 MS 1091 Original 1/29/2008 MS 1092A MS 1092B Original 1 1/6/2012 6/19/2013 MS 1092C 2 7/24/2015 MS 1094 4 Original 4/12/2016 4/25/2013 MS 1095A Original 11/5/2015 MS 1095B MS 1095C Original Original 11/5/2015 11/5/2015 MS 1095D Original 11/5/2015 MS 1086 MS 1087 MS 1093 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 15 of 26 Process Materials 6/4/2016 Material Specifications Spec Number PM * Description TC Revision Number 155 Revision Date 5/25/2016 PM 100 4 5/7/2012 PM 100A PM 100C 1 1 3/31/2003 7/17/2009 PM 101A 19 3/17/2008 PM 101C 8 6 12/11/2013 7/17/2009 2 1 3/17/2008 4/16/2013 PM 104A Original 12/5/2003 PM 105 17 Original 5/25/2016 12/17/2015 PM 105RFQ 1 5/25/2016 PM 106A PM 106B 6 8 6/28/2012 6/28/2012 PM 106C 8 6/28/2012 PM 106D PM 106F 6 5 6/28/2012 8/1/2011 PM 106G 6 3/22/2012 PM 106H 8 5 11/4/2011 9/4/2012 PM 106K 7 3 9/4/2012 9/4/2012 PM 106L 1 9/4/2012 PM 106M PM 107 Original 7 9/5/2013 4/6/2015 PM 107B Original 7/17/2009 PM 108 7 Original 9/5/2008 5/15/2009 PM 111 3 2/10/2003 PM 112 4 Original 3/12/2012 3/3/2009 PM 114B 15 15 1/22/2016 1/22/2016 PM 114C 1 2/22/2016 PM 114D 1 7 2/22/2016 7/14/2015 PM 102 PM 102C PM 103 PM 105N PM 106I PM 106J PM 108A PM 112A PM 114A PM 115 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 16 of 26 Process Materials 6/4/2016 Material Specifications Spec Number * Description PM 115A Revision Number 1 PM 115RFQ Revision Date 1/22/2016 Original 3/9/2010 PM 116B 4 3 1/22/2016 3/31/2003 PM 116C 3 3/31/2003 PM 116D 4 3 3/31/2003 3/31/2003 PM 116H 3 3 3/31/2003 3/31/2003 PM 116J 3 3/31/2003 PM 116K 3 4 3/31/2003 8/1/2011 PM 117A Original 7/15/2008 PM 117B PM 118 Original 5 8/24/2010 2/10/2003 PM 119 10 12/4/2013 PM 123DS 5 1 4/29/2011 2/10/2015 PM 123EQ Original 4/16/2013 PM 123HEC Original 6 4/16/2013 7/14/2015 PM 124B 6 2 2/26/2010 7/14/2015 PM 124C 5 7/24/2015 PM 124D PM 124E Original Original 7/14/2015 7/14/2015 PM 124F Original 7/14/2015 PM 124G PM 124H Original Original 1/22/2016 1/22/2016 PM 124J Original 1/22/2016 PM 124K 1 1 1/22/2016 1/22/2016 PM 127A 2 5 9/5/2003 12/17/2015 PM 127B 5 12/17/2015 PM 127C 5 8 12/17/2015 3/11/2015 PM 116A PM 116E PM 116G PM 117 PM 119A PM 124 PM 124A PM 124L PM 126 PM 128A * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 17 of 26 Process Materials 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date PM 128B 9 3/11/2015 PM 128C 4 7/17/2014 PM 129 PM 130 2 2 2/10/2003 4/29/2003 PM 131 5 11/20/2013 Original 5 11/20/2013 3/17/2008 PM 133 5 2 3/17/2008 4/29/2003 PM 134 2 2/10/2003 PM 135 PM 136 3 5 8/5/2003 3/17/2008 PM 137 2 2/10/2003 PM 138 PM 139 5 5 8/7/2009 8/7/2009 PM 140 5 8/7/2009 PM 141 PM 142 5 4 4/6/2015 3/17/2008 PM 142A 2 4/29/2011 PM 144 3 3 7/17/2009 4/22/2009 PM 146A 2 1 11/6/2009 3/12/2012 PM 147 1 11/20/2013 PM 148 Original 1 11/20/2013 5/19/2004 PM 149 2 3/17/2008 PM 151 PM 152 1 Original 12/17/2015 8/8/2012 PM 153 Original 9/9/2014 PM 201 5 2 2/10/2003 2/10/2003 PM 204 3 2 8/22/2012 6/13/2003 PM 205 5 2/10/2003 PM 206 2 4 2/10/2003 3/17/2008 PM 131A PM 132A PM 132B PM 145 PM 146 PM 147A PM 202 PM 203 PM 207 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 18 of 26 Process Materials 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date PM 208 3 3/12/2012 PM 209 4 8/17/2009 PM 211 PM 301 5 5 4/21/2003 8/5/2010 PM 302 2 7/22/2003 PM 303 6 11/22/2010 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 19 of 26 Shell Room 6/4/2016 Raw Materials Spec Number SR * Description TC Revision Number 27 Revision Date 1/21/2016 SR 1001 5 5/7/2012 SR 1002 3 1 6/30/2015 5/7/2012 SR 1003 Original 11/16/1999 SR 1004 1 2 5/21/2001 6/30/2015 1 3 1/31/2000 10/8/2013 SR 1002B SR 1004A SR 1005 SR 1006 SR 1007 4 5/7/2012 SR 1010 SR 1011 Original Original 1/31/2000 1/31/2000 SR 1012 3 5/7/2012 SR 1013 SR 1014 1 4 5/7/2012 5/7/2012 SR 1015 4 5/7/2012 SR 1016 SR 1017 2 1 5/7/2012 5/20/2002 SR 1018 5 5/7/2012 SR 1018B 1 4 5/7/2012 5/7/2012 Original 1 1/21/2016 5/7/2012 SR 1020 2 5/7/2012 SR 1020B 1 3 5/7/2012 5/7/2012 SR 1021A Original 1/21/2016 SR 1022 SR 1023 1 Original 5/7/2012 9/29/2015 SR 1024 Original 9/29/2015 SR 1025 Original Original 1/21/2016 1/21/2016 SR 1019 SR 1019A SR 1019B SR 1021 SR 1026 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 20 of 26 Test Bar 6/4/2016 Material Specifications Spec Number TBM * Description TC Revision Number Revision Date 35 6/25/2015 TBM 1010 7 1/22/2010 TBM 1020 TBM 002 18 3 5/9/2012 4/23/2007 TBM 011 3 4/23/2007 TBM 014 3 3 4/23/2007 4/23/2007 TBM 025 2 3 4/23/2007 4/23/2007 TBM 193 3 4/23/2007 TBM 195 TBM 1000 3 5 4/23/2007 11/17/2009 TBM 1106 4 11/17/2009 TBM 1400 TBM 2020 4 3 11/17/2009 4/23/2007 TBM 2100 3 4/23/2007 TBM 2120 TBM 2300 3 3 4/23/2007 4/23/2007 TBM 2500 2 4/23/2007 TBM 3004 4 3 10/29/2007 4/23/2007 TBM 3040 Original 3 6/25/2015 4/23/2007 TBM 3104 3 4/23/2007 TBM 3110 TBM 3120 3 3 4/23/2007 4/23/2007 TBM 3200 2 4/23/2007 TBM 3300 TBM 3310 3 3 4/23/2007 4/23/2007 TBM 4000 3 4/23/2007 TBM 4004 5 Original 10/29/2007 1/8/2009 TBM 4020 Original 2 7/20/2010 4/23/2007 TBM 4031 3 7/1/2008 TBM 4030 3 2 4/23/2007 5/11/2012 TBM 018 TBM 020 TBM 3030 TBM 3031 TBM 4005 TBM 4006 TBM 4049 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 21 of 26 Test Bar 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date TBM 4050 3 TBM 4051 2 4/23/2007 TBM 4200 TBM 4300 7 3 11/17/2009 4/23/2007 TBM 5262 4 4/23/2007 TBM 5270 3 3 4/23/2007 4/23/2007 TBM 6010 4 4 4/23/2007 4/23/2007 TBM 6050 3 4/23/2007 TBM 6060 TBM 6070 3 3 4/23/2007 4/23/2007 TBM 6095 6 10/29/2007 TBM 6115 TBM 6120 4 7 4/23/2007 4/23/2007 TBM 6130 2 4/23/2007 TBM 7000 TBM 7001 3 1 4/23/2007 4/23/2007 TBM 7005 3 4/23/2007 TBM 7010 3 3 4/23/2007 4/23/2007 TBM 8020 3 2 4/23/2007 5/9/2012 TBM A1 3 4/23/2007 TBM A2 TBM A8 1 4 4/23/2007 5/9/2012 TBM A9 4 5/9/2012 TBM A10 4 2 5/9/2012 4/23/2007 TBM 5275 TBM 5291 TBM 7020 TBM 7030 TBM A11 4/23/2007 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 22 of 26 Wax 6/4/2016 Material Specifications Spec Number WM * Description TC Revision Number Revision Date 125 5/26/2016 9 3/21/2011 WM 5022 1 Original 3/21/2011 12/22/2015 WM 5024 2 4/1/2009 Original 1 11/17/2006 5/26/2016 WM 5027A 14 15 11/30/2015 11/30/2015 WM 5027S 13 11/30/2015 WM 5028 13 3 6/26/2014 10/23/2014 2 5/29/2013 2 Original 1/22/2016 1/27/2015 WM 5032 6 1/10/2007 WM 5035 WM 5038 13 15 11/30/2015 10/6/2015 WM 5040 13 1/22/2016 WM 5042 14 8 11/30/2015 10/23/2014 WM 5054 8 5 12/22/2014 6/26/2014 WM 5058 3 11/30/2015 WM 5059 WM 5060 Original 2 5/25/2012 5/2/2014 WM 5060C Original 7/30/2015 WM 5062A 10 2 3/12/2014 12/22/2015 WM 5062B 2 10/23/2014 9 10 10/23/2014 6/26/2014 WM 5066 2 12 12/22/2015 11/30/2015 WM 5067 11 10/23/2014 WM 5070 10 Original 10/23/2014 5/7/2015 WM 5004 WM 5004A WM 5024A WM 5024R WM 5027 WM 5028B WM 5029 WM 5029A WM 5029B WM 5045 WM 5046 WM 5061 WM 5064 WM 5065 WM 5065R1 WM 5070A * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 23 of 26 Wax 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date WM 5075 9 10/23/2014 WM 5080 9 10/23/2014 WM 5081 WM 5083 9 9 5/2/2014 10/23/2014 WM 5084 6 12/22/2015 WM 5085 9 6 12/22/2014 11/17/2006 WM 5090 8 7 3/12/2014 10/23/2014 WM 5091 1 10/23/2013 WM 5093 WM 5094 4 6 9/17/2003 6/12/2009 WM 5095 10 10/23/2014 WM 5096 WM 5097 5 6 7/9/2012 4/1/2009 WM 5100 9 12/22/2014 WM 5102 WM 5106 3 6 12/22/2014 12/22/2014 WM 5107 4 9/13/2007 WM 5108 5 5 10/15/2008 12/22/2014 WM 5122 6 5 4/20/2009 4/1/2009 WM 5125 4 1/27/2015 WM 5150 WM 5152 7 3 7/7/2011 6/26/2014 WM 5202 2 5/15/2009 WM 5203 1 2 5/15/2009 6/24/2010 WM 5086 WM 5088 WM 5114 WM 5116 WM 5210 WM 5211 1 7/1/2010 Original Original 6/24/2010 6/24/2010 WM 5211.04 Original Original 6/24/2010 6/24/2010 WM 5211.05 Original 6/24/2010 WM 5211.06 Original 1 6/24/2010 7/26/2011 WM 5211.01 WM 5211.02 WM 5211.03 WM 5211.07 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 24 of 26 Wax 6/4/2016 Material Specifications Spec Number * Description Revision Number Revision Date WM 5211.08 Original 7/1/2010 WM 5280 Original 1/21/2011 WM 7001 107 6 5/26/2016 12/22/2015 WM 7003 3 12/10/1993 WM 7004 5 3 11/1/2013 9/27/2000 1 Original 12/22/2015 1/8/2008 WM 7010 1 12/22/2015 WM 7018 WM 7018A 12 1 1/7/2015 7/28/2005 WM 7018B 1 7/28/2005 WM 7018C WM 7018D 1 3 7/28/2005 1/7/2015 WM 7018E 1 8/8/2007 WM 7019A WM 7019 Original 2 5/16/2008 11/21/2011 WM 7019B Original 10/25/2012 5 1 4/18/2008 5/26/2016 WM 7033 11 9 4/30/2012 5/26/2016 WM 7036 9 11/21/2011 WM 7039 WM 7040 6 6 6/7/2007 9/23/2012 WM 7046 8 4/30/2012 WM 7060 WM 7061 7 4 1/7/2015 4/15/2014 WM 7062 8 2/22/2016 WM 7063 7 10 1/29/2003 12/20/2002 WM 7067 2 13 1/7/2015 10/25/2012 WM 7068 4 5/26/2016 WM 7079 2 5 9/13/2007 10/16/2002 WM TC WM 7005 WM 7006 WM 7007 WM 7030 WM 7030B WM 7031 WM 7065 WM 7065B WM 7081 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 25 of 26 Wax 6/4/2016 Raw Materials Spec Number * Description Revision Number Revision Date WM 7091 3 8/21/2001 WM 7092 8 2/15/2008 WM 7095 WM 7096 6 5 5/29/2013 5/29/2013 WM 7097 3 4/15/2014 WM 7098 17 5 12/22/2015 5/15/2002 10 10 5/26/2016 12/22/2015 WM 7103A 1 12/22/2015 WM 7104 WM 7111 1 4 12/22/2015 5/26/2016 WM 7112 7 8/2/2011 WM 7118 WM 7117 Original 1 6/7/2012 8/7/2014 WM 7116 1 10/25/2012 WM 7115 WM 7120 5 Original 11/6/2007 10/25/2012 WM 7204 Original 8/9/2007 WM 7211 4 5 5/26/2016 5/26/2016 WM 7215 4 3 5/26/2016 4/15/2014 WM 7216 3 6/30/2009 WM 7217 WM 7218 1 1 11/6/2007 11/6/2007 WM 7220 Original 12/22/2015 WM 7099 WM 7100 WM 7101 WM 7212 WM 7213 * Refer to the Alcoa Howmet purchase order for the DESCRIPTION of the applicable specification. Ø - Denotes change from previous issue. UNCONTROLLED DOCUMENT 26 of 26