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Australia AS 4620 H Australia Structural steel and 4620 H Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 4620 H
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 4620 H AS Australia Australia Structural steel
X9315
X9931
X9940
X1320H
X3312H
4130H
4140H
4150H
X4317H
4340 H

Chemical composition(mass fraction)(wt.%) of the 4620 H

C(%) Si(%) Mn(%) P(%) S(%) Ni(%) Mo(%)
0.17-0.23 0.10-0.35 0.35-0.75 0.040 0.04 1.55-2.00 0.20-0.30

Mechanical Properties of steel grade 4620 H

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)
258 (≥) 567 (≥) 33 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 4620 H

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
41 - -     0.42 -  
266 269 - 32.3 333   -  
685 - 21 34.2   213 122

Heat Treatment of steel grade 4620 H

Heat treated : 1285°C - 1187°C

Technological Curves of steel grade 4620 H

Cross Reference Table (Equivalent Grade) of 4620 H

Grade Standard Country Application
ICI 4620 AISI USA
4620 AS Australia Australia Structural steel
4620 H AS Australia Australia Structural steel
4620 ICI USA Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
4620 ICI USA Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
H11 ASTM USA Alloy tool steel
H12 ASTM USA Alloy tool steel
H14 ASTM USA Alloy tool steel
H19 ASTM USA Alloy tool steel
H21 ASTM USA Alloy tool steel
H22 ASTM USA Alloy tool steel
H24 ASTM USA Alloy tool steel
H25 ASTM USA Alloy tool steel
H26 ASTM USA Alloy tool steel
H41 ASTM USA Alloy tool steel
H42 ASTM USA Alloy tool steel
H43 ASTM USA Alloy tool steel
M2 hight C ASTM USA Molybdenum series High-speed tool steel
M10 Hight C ASTM USA Molybdenum series High-speed tool steel
CH-12 ASTM USA Casting tool steels and powder metallurgy tool steel

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