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HIGHTEMP.TXT
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1991-02-05
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Cyclic Oxidation Resistance
WEIGHT GAIN - GRAMS PER SQUARE METER OF SURFACE
FOR TEMPERATURES AS SHOWN
ALLOY 705°C 815°C 980°C 1090°C
409 0.1 0.8 1430* 10,000*
430 0.4 1.3 1660* 10,000*
304 0.2 1.7 3400 10,000*
309 0.2 2.7 120 910
NOTE: These were cyclic tests for 100 hours duration in air containing 10%
water vapor. Cycled every 2 hours to room temperature then back to test
temperature. Weight gain (or loss) measured without purposeful removal
of scale.
Some of the higher temperature tests, indicated by *, were for much shorter
time than the 100 hours.
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TENSILE and YIELD STRENGTH AT TEMPERATURES SHOWN
24°C 540°C 650°C
ALLOY Tensile Yield Tensile Yield Tensile Yield
304 87,000 39,000 55,000 18,000 44,000 16,000
309 90,000 45,000 67,000 36,000 54,000 28,000
310 95,000 45,000 70,000 24,000 58,000 19,000
316 84,000 40,000 67,500 28,000 55,000 24,000
321 79,000 31,000 57,500 26,000 45,000 21,000
347 95,000 40,000 60,000 20,500 50,500 20,000
* 403 110,000 75,000 65,000 52,000 87,000 No Data
* 410 125,000 108,000 75,000 No Data 20,000 No Data
NOTE: Alloys indicated by * were tested in heat treated condition, others in
annealed condition.
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1000 HOUR STRESS-RUPTURE AT TEMPERATURES SHOWN
ALLOY 538°C 650°C 815°C
304 37,000 17,000 4,000
309 No Data 19,000 4,000
310 32,000 18,000 6,000
316 No Data 24,000 7,000
347 49,000 23,000 4,000
410 19,000 No Data No Data
430 18,000 5,000 1,000
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GENERAL INFORMATION ON HIGH TEMPERATURE PROPERTIES:
Allowable stresses for austenitic (300 series) stainless steel unfired
pressure vessels are found in Section VIII of the ASME Boiler Code.
Additional information on high temperature properties can also be found in
the ASM Metals Handbook, Volume 3, 9th Edition.
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POISSON'S RATIO AT TEMPERATURES SHOWN
TEMPERATURE
ALLOY 150°C 260°C 370°C 480°C 595°C 705°C 815°C
304 0.28 0.30 0.32 0.28 0.29 0.28 0.25
309 0.28 0.30 0.30 0.29 0.27 0.32 0.25
310 0.32 0.31 0.31 0.32 0.34 0.34 0.29
316 0.26 0.29 0.34 0.30 0.32 0.31 0.24
321 0.23 0.25 0.27 0.30 0.29 0.27 No Data
347 0.30 0.31 0.29 0.33 0.31 0.35 0.28