MAGNETIC PROPERTIES:
Hipernom is guaranteed to have a minimum D.C. permeability of 60,000 at a flux density of
40 guass when heat treated by the recommended procedure and tested in accordance with ASTM
A596-69.
HEAT TREATMENT:
Annealing: To obtain optimum shielding characteristics, shields should be annealed
in an oxygen-free, dry hydrogen or dissociated ammonia atmosphere with a dew point below
-40ºF (-40ºC). Heat charge to 2100ºF (1150ºC) at a rate suitable to avoid shield
distortion and hold at temperature for four hours. Furnace cool to 1100ºF (600ºC). From
1100/575ºF (600/300ºC), cool at the rate of 5/10ºF (3/6ºC) per minute.
WORKABILITY:
Cold Forming: Hipernom sheet or strip can be readily fabricated into shields by
roll forming, spinning, deep drawing, and conventional sheet metal forming operations.
Welding: This alloy can be joined by spot welding or tungsten
inert gas welding – with or without a base metal filler rod.
PRODUCT SCOPE:
Carpenter Hipernom for shielding is available in the mill processed annealed condition in
flat sheets or coil in various thicknesses. The following thicknesses are considered
standard:
0.014"
0.025"
0.050"
0.020"
0.030"
0.062"
0.040"
Thicknesses other than these are available on special order.
Hipernom shielding is provided in a Forming, Bending, Drawing (FBD)
temper defined by hardness as follows:
Thickness:
0.030" and above......................60 to 70
RB
Less than 0.030" to 0.014"....... 80 to
83.5 R15T
(60 to 70 RB)
The surface is provided in the bright annealed condition and is essentially free of
extraneous oxides, dirt, foreign matter and other surface defects which may be deleterious
to the end use.
MECHANICAL PROPERTIES:
Typical Room Temperature Mechanical Properties
Tensile Strength, ksi....................................80/90
kg/mm2²..................................................56/63
Yield Strength, ksi........................................28/38
kg/mm2²..................................................20/27
Elongation, % in 1" (2.54 cm.............................40
