2. 4.5 < Mo < 7.50.1 < N < 0.50.5 < Mn < 6.0 Pipe-work and Vessel system Chemical, Oil & Gas, Off-shore

4. ProcessConsumableAWSCMnCrNiMoCuNPRE N MMA Ultramet 904L Ultramet B904L E385-16 E385-15 0.025 2222 21 25 5 4.8 1.8 0.1 39 38 TIG/MIG20.25.4.CuER3850.011.720254.51.50.136

5. ProcessConsumableAWSBS ENCMnCrNiMoNbFePREN MMANimrod 625KSENiCrMo-3ENi66250.030.821.56493.5<1.551 TIG/MIG62-50ERNiCrMo-3SNi66250.0150.02226593.50.852

6. ProcessConsumableAWSBS ENCMnCrNiMoWFePRE N MMANimrod C22KSENiCrMo-10ENi60220.010.52149143465 TIGHAS C22ERNiCrMo-10SNi60220.0030.2215613.53465 MMANimrod 59KSENiCrMo-13ENi60590.010.5236015.5-175 TIG/MIGHAS 59ERNiCrMo-13SNi60590.0030.2236015.5-0.475

7. ProcessConsumableCMnCrNiMoCuN PRE N MMA 20.18.6.Cu.R0.0250.720186.50.70.245

8. * The alloy C22 or alloy 59 consumables would also be suitable.

9. GradeSpecificationTest temperature, ˚CToughness, J 20.25.4.Cu TIGER385+20 210 Ultramet 904LE385-16-196 50 Ultramet B904LE385-15-196 50 20.18.6.Cu.R--50 120 62-50 TIGERNiCrMo-3-196 80 Nimrod 625KSENiCrMo-3-196 60 HAS C22 TIGERNiCrMo-10-196 130 Nimrod C22KSENiCrMo-10-196 45 HAS 59 TIGERNiCrMo-13+20 140 Nimrod 59KSENiCrMo-13-50 50

11. MaterialConditionCPT, °C 6%Mo parent materialSolution annealed65 – 70 Alloy 625 weld metalAs-welded45 – 50 Alloy C22 & 59 weld metalAs-welded> 70 20.18.6.Cu.R weld metalSolution annealed> 50 S32654Solution annealed>85

12. MaterialConditionTest Temperature, °CWeight loss, g/m 2 20.18.6.Cu.R MMA Solution annealed400.3 62-50 TIG As-welded 400 42.50.8 Nimrod 625KS MMA As-welded 500 52.50.9 HAS C22 TIG As-welded 400.3 750 Nimrod C22KS MMA As-welded400.3