It is bought for gas turbine hot-section parts: compressor and turbine discs, rotors, shafts, spacers, turbine cases, seals, fasteners and airframe attachments.<\/div>\n<\/div>\n
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Forms<\/div>\n
Round bar \u00b7 flat bar \u00b7 plate \u00b7 sheet \u00b7 strip \u00b7 wire \u00b7 tube \u00b7 forging \u00b7 ring. All forms are supplied to order.<\/div>\n<\/div>\n
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Standards<\/div>\n
AMS (EVERY NUMBER VERIFIED ONE BY ONE; THE TITLES ARE IN THE SPECIFICATION NOTE):
AMS 5544<\/b> (sheet, strip, plate \u2014 annealed) \u00b7 AMS 5586<\/b> (welded tubing \u2014 annealed) \u00b7 AMS 5704<\/b> (forgings \u2014 996-1038 C solution, stabilization and precipitation) \u00b7 AMS 5706<\/b> (bars, forgings, rings \u2014 996-1038 C SOLUTION HEAT TREATED ONLY) \u00b7 AMS 5707<\/b> (bars, forgings, rings and forging stock \u2014 996-1038 C solution, stabilization and precipitation) \u00b7 AMS 5708<\/b> (bars, wire, forgings, rings \u2014 1079 C SOLUTION HEAT TREATED ONLY) \u00b7 AMS 5709<\/b> (bars and forgings \u2014 1079 C solution, stabilization and precipitation) \u00b7 AMS 5828<\/b> (welding wire \u2014 vacuum induction melted, solution heat treated). ASTM\/ASME: ASTM B637 \/ ASME SB-637 (precipitation-hardening and cold-worked nickel alloy bars, forgings and forging stock); N07001 is within the scope of this specification, which gives the heat treatment cycle in Table 2 and the mechanical minimum in Table 3. ISO 9723 \/ 9724 \/ 9725. Others: MSRR 7192 \u00b7 PWA 1007, 1016, 1027, 1057 \u00b7 EMS 52517, 55388, 55424 \u00b7 LHM 2417 (Carpenter Technology list).
ALL EIGHT AMS NUMBERS WERE VERIFIED ONE BY ONE FROM THE SAE\/ANSI CATALOGUE TITLE; ALL EIGHT BELONG TO THE WASPALOY COMPOSITION.<\/span><\/div>\n<\/div>\n\n
Advantage<\/div>\n
That hardness and strength can be SET by heat treatment. In the fully heat-treated condition ATI gives a band of 34-44 HRC; Carpenter Technology sets room-temperature yield strength anywhere between 800 MPa and 1076 MPa on the same alloy by changing the SOLUTION TREATMENT TEMPERATURE alone (1975 F\u2026<\/div>\n<\/div>\n
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Welding<\/div>\n
Welding is done in the SOLUTION-TREATED \/ ANNEALED condition, not in the aged condition (High Temp Metals). Filler metal:
AMS 5828<\/b> Waspaloy welding wire (vacuum induction melted, solution heat treated);<\/div>\n<\/div>\n\n
Limits<\/div>\n
1) OXIDATION CEILING: ATI reports good oxidation resistance for intermittent service up to 871 C (1600 F); the Wikipedia record gives good oxidation resistance in gas turbine atmospheres to 870 C and retention of strength to roughly 980 C. High Temp Metals states that degradation begins above 871 C.<\/div>\n<\/div>\n