RA333 Data Sheet [Heat Resistant Alloys] - Rolled Alloys

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RA333 ® 13Low Cycle FatigueElevated Temperature1600°F, 16 cycles per minute.Material tested: 3/4” dia. hot rolled annealed bar, heat 38314.C Mn Si Ni Cr Mo Co W.066 1.68 1.00 44.91 24.65 2.86 2.77 2.51
Low Cycle Fatigueand Creep StrengthRA333 ®Low Cycle FatigueRA333 shaker hearth, one of twin hearths in a Surface Combustion furnace. Temperature 1600-1650°F (870-900°C),enriched endothermic atmosphere used for bright hardening and light carbonitriding.In service, the cyclic strains are rarely well defined. Thisshaker hearth furnace moves the work pieces along bya reciprocating motion of the hearth. Failure is usuallycombined mechanical fatigue and thermal strain at thecharge (cooler) end. This particular design in 3/8”(9.5mm) RA333 plate lasted 22 months (or 16,000cycles). Previous cast 66% Ni, 17% Cr hearths gaveerratic life ranging upwards from 3 months.Creep StrengthAverage Stress, psi (MPa) for:Temperature Secondary Creep Rate of Total Creep in 10,000 hours, %°F (°C) 0.00001%/hr 0.0001%/hr 0.5 1.0 2.0 5.01100 (593) -- 22,000 (152) 19,000 19,500 20,500 22,000(131) (134) (141) (152)1200 (649) 6800 (46.9) 9,800 (67.6) -- -- -- --1300 (704) 5400 (37.2) 7,700 (53.1) -- -- -- --1400 (760) 4600 (31.7) 6,400 (44.1) 4,000 5,300 6,500 8,350(27.6) (36.5) (44.8) (57.6)1500 (816) 2900 (20.0) 4,200 (29.0) -- -- -- --1600 (871) 1900 (13.1) 2,700 (19.0) 2,350 2,450 2,800 2,950(16.2) (16.9) (19.3) (20.3)1700 (927) 1100 (7.58) 1,650 (11.4) -- -- -- --1800 (982) 560 (3.86) 880 (6.07) 700 770 820 850(4.83) (5.31) (5.65) (5.86)14
Page 5 and 6: MachiningRA333 ®RA333 requires low
Page 7: Physical PropertiesRA333 ®Physical
Page 10 and 11: Effect of Elevated Temperature Expo
Page 12 and 13: RA333 ® 11Effect of Cold Drawing o
Page 16 and 17: RA333 ® 15Rupture StrengthAverage
Page 18 and 19: RA333 ® 17Minimum Creep Rate
Page 20 and 21: RA333 ® 19OxidationRA333 has excel
Page 22 and 23: RA333 ® 21OxidationMetal Dusting1
Page 24 and 25: RA333 ® 23Hot CorrosionHot corrosi
Page 26 and 27: RA333 ® 25Hot CorrosionMaximumTime
Page 28 and 29: RA333 ® 27Aqueous CorrosionRA333 h
Page 30 and 31: Stress Corrosion CrackingResistance
Page 32 and 33: RA333 ® 31MetallographyTypical Mic
Page 34: DATA SHEET RA333 ® Temperance, MI

RA333 Data Sheet [Heat Resistant Alloys] - Rolled Alloys

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