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4.0
PHYSICAL
PROPERTIES
Average physical properties for each
of the main groups of stainless steel
are listed in Table V. This includes
elastic modulus, density, coefficient
of thermal expansion, thermal con-
ductivity, specific heat, electrical
resistivity, magnetic permeability and
melting range. These values should
be close enough for most engineer-
ing purposes. If more precise data is
required for a particular type of
stainless steel, it can be found in the
ASM Metals Handbook, Ninth
Edition, Volume 3.
5.0
MECHANICAL
PROPERTIES
Nominal mechanical properties of
austenitic and ferritic stainless steels
in the annealed condition are listed in
Table VI and Table VII respectively.
The austenitic stainless steels
generally have higher tensile
strengths and elongation than the
ferritic stainless steels but lower yield
strengths. Reduction in area is
about the same for both groups.
Nominal mechanical properties of
martensitic stainless steels in both
the annealed and tempered condition
are listed in Table VIII. The
tempered condition involves heating
to austenitize, cooling to form
martensite and reheating to the
indicated temperature to increase
toughness. Table IX lists the
mechanical properties of the precipi-
tation hardening stainless steels as
solution annealed and after aging
treatments at the temperature
indicated. Properties of three duplex
stainless steels are included.
Tensile Strength 0.2% Yield Strength Elong. R.A. Hardness
Type Condition Ksi MPa Ksi MPa %%Rockwell
201 Anneal 115 793 55 379 55 B90
201 Full Hard 185 1275 140 965 4 C41
202 Anneal 105 724 55 379 55 B90
301 Anneal 110 758 40 276 60 B85
301 Full Hard 185 1275 140 965 8 C41
302 Anneal 90 620 37 255 55 65 B82
302B Anneal 95 655 40 276 50 65 B85
303 Anneal 90 620 35 241 50 55 B84
304 Anneal 85 586 35 241 55 65 B80
304L Anneal 80 552 30 207 55 65 B76
304N Anneal 85 586 35 241 30
304LN Anneal 80 552 30 207
305 Anneal 85 586 37 255 55 70 B82
308 Anneal 85 586 35 241 55 65 B80
308L Anneal 80 551 30 207 55 65 B76
309 Anneal 90 620 40 276 45 65 B85
310 Anneal 95 655 40 276 45 65 B87
312 Anneal 95 655 20
314 Anneal 100 689 50 345 45 60 B87
316 Anneal 85 586 35 241 55 70 B80
316L Anneal 78 538 30 207 55 65 B76
316F Anneal 85 586 35 241 55 70 B80
317 Anneal 90 620 40 276 50 55 B85
317L Anneal 85 586 35 241 50 55 B80
321 Anneal 87 599 35 241 55 65 B80
347/348 Anneal 92 634 35 241 50 65 B84
329 Anneal 105 724 80 552 25 50 B98
330 Anneal 80 550 35 241 30 B80
330HC Anneal 85 586 42 290 45 65
332 Anneal 80 552 35 241 45 70
384 Anneal 80 550
(From ASM Metals Handbook, 8th Edition, Volume 1; and 9th Edition, Volume 3 and ASTM standards)
TABLE VI — Properties of Austenitic Stainless Steels