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620-470

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England B.S. 620-470 Specification for steels for fired and unfired pressure vessels: sections and bars and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 620-470 / 620-470
Category Grade Standard Region/Area Standard Content
Metals 620-470 BS 1502 England Specification for steels for fired and unfired pressure vessels: sections and bars

Chemical composition(mass fraction)(wt.%) of the 620-470

Element Min Max Similar
Si 0.1500 0.4000 -
S - 0.0250 -
P - 0.0300 -
Ni - 0.4000 -
Mo 0.4500 0.6500 -
Mn 0.4000 0.7000 -
Cu - 0.3000 -
Cr 0.8500 1.1500 -
C - 0.1800 -
Al met - 0.0200 -

Mechanical Properties of steel grade 620-470

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)
881 (≥) 298 (≥) 32 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade 620-470

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
43 - -     0.42 -  
216 116 - 42.3 331   -  
344 - 11 12.2   313 222

Heat Treatment of steel grade 620-470

Heat treated : 1391°C - 1368°C

Technological Curves of steel grade 620-470

Cross Reference Table (Equivalent Grade) of 620-470

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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