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K20857

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America UNS K20857 Steel Electrode(EB23) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: K20857 / K20857
Category Grade Standard Region/Area Standard Content
Metals K20857 -- America Steel Electrode(EB23)

Chemical composition(mass fraction)(wt.%) of the K20857

Element Min Max Similar
C 0.0500 0.1200 -
Mn - 1.1000 -
P - 0.0150 -
S - 0.0150 -
Si - 0.5000 -
Ni - 0.5000 -
Cr 1.9000 3.0000 -
Mo - 0.5000 -
Cu - 0.1000 -
V 0.1500 0.3000 -
W 1.5000 2.0000 -
Cb 0.0200 0.1000 -
B - 0.0060 -
Al - 0.0400 -
N - 0.0500 -

Mechanical Properties of steel grade K20857

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)
894 (≥) 133 (≥) 44 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade K20857

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
44 - -     0.34 -  
999 724 - 43.3 112   -  
957 - 14 32.2   113 143

Heat Treatment of steel grade K20857

Heat treated : 1659°C - 1179°C

Technological Curves of steel grade K20857

Cross Reference Table (Equivalent Grade) of K20857

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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