: Products > Special Metal Division > 42-Alloy
NOMINAL DATA SHEET
Physical Properties  
Specific gravity 8.12

Density, lbs. per cu. in.

0.293
Electrical resistivity, micro-ohm-cm 72
TYPICAL TENSILE STRENTGH
ANNEALED 85,000 MAX
1/4 HARD 90,000 TO 115,000

1/2 HARD

105,000 TO 125,000
HARD 120,000 MIN.
TYPICAL HARDNESS, ROCKWELL B
ANNEALED 70 MAX
1/4 HARD 78 to 83

1/2 HARD

84 to 88

Element / Percent by Weight
NICKEL(NI) 39/41%

CHROMIUM(CR)

0.05
MANGANESE(MN) 0.6
SILICON(SI) 0.02
CARBON(C) 0.05
COBALT(CO) 0.05
PHOSPHORUS(P) 0.02
SULFUR(S) 0.02
IRON(FE) REMAINDER
TYPICAL LINEAR COEFFICIENT OF THERMAL EXPANSION(cm per cm C x 10-6)
30 to 100 4.8

30 to 200

4.5
30 to 300 4.5
30 to 350 5
30 to 400 6
30 to 425 N/A
30 to 450 7
30 to 500 8
30 to 550 8.8
30 to 600 9.5
30 to 700 10.5
30 to 800 11.4
30 to 900 12.3
30 to 1000 13.2
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