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7881

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America SAE 7881 Tungsten Carbide-Cobalt Powder Agglomerated and Sintered and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 7881 / 7881
Category Grade Standard Region/Area Standard Content
Metals 7881 SAE AMS 7881A America Tungsten Carbide-Cobalt Powder Agglomerated and Sintered

Chemical composition(mass fraction)(wt.%) of the 7881

Element Min Max Similar
W - - -
Other - 0.5000 -
Fe - 1.5000 -
Co 15.0000 18.5000 -
C 4.8000 5.6000 -

Mechanical Properties of steel grade 7881

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
756 (≥) 942 (≥) 11 13 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 7881

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
23 - -     0.32 -  
149 393 - 11.3 111   -  
239 - 44 41.2   342 241

Heat Treatment of steel grade 7881

Heat treated : 1314°C - 1356°C

Technological Curves of steel grade 7881

Cross Reference Table (Equivalent Grade) of 7881

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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