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Chemistry
Data
There is no chemistry data available for this grade.
Principal Design Features
431 is a martensitic stainless combining excellent impact
strength at high hardness levels with the best corrosion
resistance of any martensitic stainless steels.
Applications
431 has been successfully used in a variety of
aircraft and general industrial applications. These include
fasteners, bolts, valve components and chemical equipment.
Machinability
In the fully annealed condition, 431 will gall
and build up on the tools. Good surface finishes are not
easily obtained.
Welding
Most electric welding procedures have proven successful
with 431 stainless. Filler metal should be AWS E/ER410.To
avoid cracking, pre-heat the workpiece to 400-600 F (204-316
C). After air cooling, treat at 1200 F (649 C) to reattain
maximum properties.
Hot Working
Heat to 2100-2200 F (1149-1204 C) for best results. Do
not work material below 1650 F (900 C).
Cold Working
This alloy is easily drawn, spun, headed, sheared and
bent compared with other stainless steels.
Annealing
1200-1250 F (650-677 C), furnace or air cool.
Tempering
Temper for desired properties. Temperatures between 700-1050
F (371-565 C) will adversely affect impact strength and
corrosion properties.
Hardening
1800-1950 F (982-1066 C), oil quench or ail cool for maximum
properties.
Mechanical Data
There is no Mechnical data available for this grade.
Disclaimer
This information is provided "as is" and Prayas
Metals, makes no warranty of any kind with respect to
the subject matter or accuracy of the information contained
herein. Prayas Metals, specifically disclaims all warranties,
expressed, implied or otherwise, including without limitation,
all warranties of merchantability and fitness for a particular
purpose.
In no event shall Prayas Metals, be liable for any special,
incidental, indirect or consequential damages of any kind
or any damages whatsoever resulting from loss of use,
data, profits, whether or not advised of the possibility
of damage, and on any theory of liability, arising out
of or in connection with the use of the information contained
herein.
This publication may include technical inaccuracies or
typographical errors. Changes may be periodically made
to the information herein.
