Creep properties AISI 4140
Creep properties AISI 4140
(OP)
Does anyone know where I can find graph or similar for creep properties of AISI 4140 or B16 type studs say up to 400C? Thanks
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Creep properties AISI 4140
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RE: Creep properties AISI 4140
RE: Creep properties AISI 4140
RE: Creep properties AISI 4140
(b) At temperatures in the range where creep and
stress rupture strength govern the selection of stresses,
the maximum allowable stress value for all materials is established
by the Committee not to exceed the lowest of the
following:
(1) 100% of the average stress to produce a creep
rate of 0.01%/1,000 hr
(2) 100Favg% of the average stress to cause rupture
at the end of 100,000 hr
(3) 80% of the minimum stress to cause rupture at
the end of 100,000 hr
Favg = multiplier applied to average stress for rupture
in 100,000 hr. At 1500°F and below, Favg = 0.67.
Above 1500°F, it is determined from the slope of
the log time‐to‐rupture versus log stress plot at
100,000 hr such that log Favg = 1/n, but it may
not exceed 0.67.
RE: Creep properties AISI 4140
In your item (1) it mentions not to exceed [1]"100% of the average stress to produce a creep
rate of 0.01%/1,000 hr"
Any idea on how I find out the stress to produce that creep rate in AISI 4140 at 400C ?
May thanks.
RE: Creep properties AISI 4140
High-temperature property data: ferrous alloys
Front Cover
Michael F. Rothman, ASM International
ASM International, 1988 - Technology & Engineering - 463 pages
RE: Creep properties AISI 4140