K Monel 500
*trademark Huntington Alloys
K-500 Alloy has similar properties to Monel 400 Alloy, but has the added feature of Age Hardening to achieve a higher strength and hardness, This is due to the addition of aluminium and titanium. K-500 Alloys strength is maintained to temperatures as high as 1200 F, yet stays tough and ductile to temperatures down to -423 F. Along with staying non-magnetic down to  -210 F. A common specification for this  is QQ N 286.
Elements
N
Fe
Mn
Al
Comp. %
63.0 min.
2.0 max.
1.5 max.
2.3-3.15
Elements
C
Cu
Si
S
Ti
Comp. %
.18 max.
27.0-33.0
.50 max.
.01 max.
.35-.85
Density/lbs/cu in.
Modulus of elasticity,psi
        Tension
        Torsion
Poisson Ratio
.298
 
31,000,000
11,000,000
.29
Tensiles per QQ N 281 Class A
Cold drawn, as drawn, all sizes
Cold drawn, and annealed, all sizes
Cold drawn, spring temper as drawn
  .057 and less
 Over  .057 to .114
 Over .114 to .229
 Over .229 to .312
110,000-155,000
110,000 min.
 
165,000 min.
155,000 min.
150,000 min.
145,000 min.
Age Hardening
1000 F hold for 8-16 hours (depends on desired hardness after aging). Furnace cool to aim temperature 900 F then air cool.
Cold drawn,as drawn age hardened:
  All sizes
Cold drawn ,spring temper, and age hardened:
  .114 and less
 over  .114 to .375
 
155,000 min.
 
180,000 min.
170,000 min.
The information and data presented herein are typical or average values and are not guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes.
 
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OR E-MAIL hmsinc@hamdenmetal.com