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En55

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England B.S. En55 Wrought steels for mechanical and allied engineering purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: En55 / En55
Category Grade Standard Region/Area Standard Content
Metals En55 BS 970 England Wrought steels for mechanical and allied engineering purposes

Chemical composition(mass fraction)(wt.%) of the En55

Element Min Max Similar
W 2.0000 4.0000 -
Si 1.0000 2.5000 -
S - 0.0450 -
P - 0.0450 -
Ni 6.0000 12.0000 -
Mn - 1.0000 -
Cr 17.0000 - -
C 0.1800 0.4500 -

Mechanical Properties of steel grade En55

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)
526 (≥) 862 (≥) 41 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade En55

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
32 - -     0.12 -  
454 265 - 24.3 222   -  
937 - 41 43.2   232 142

Heat Treatment of steel grade En55

Heat treated : 1969°C - 1785°C

Technological Curves of steel grade En55

Cross Reference Table (Equivalent Grade) of En55

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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