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Ao 21 Mn

Favorite Datasheet

Hungary MSZ Ao21Mn Steel casting for use at elevated temperatures and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Ao21Mn / Ao 21 Mn
Category Grade Standard Region/Area Standard Content
Metals Ao 21 Mn MSZ 1749 Hungary Steel casting for use at elevated temperatures

Chemical composition(mass fraction)(wt.%) of the Ao 21 Mn

Element Min Max Similar
Si 0.3000 0.6000 -
S - 0.0300 -
Pb - 0.3000 -
P - 0.0300 -
Ni - 0.4000 -
Mn 0.9000 1.4000 -
Cr - 0.3000 -
C 0.1700 0.2500 -

Mechanical Properties of steel grade Ao 21 Mn

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)
724 (≥) 825 (≥) 24 11 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade Ao 21 Mn

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
33 - -     0.12 -  
433 564 - 33.3 133   -  
166 - 31 14.2   211 134

Heat Treatment of steel grade Ao 21 Mn

Heat treated : 1745°C - 1118°C

Technological Curves of steel grade Ao 21 Mn

Cross Reference Table (Equivalent Grade) of Ao 21 Mn

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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Jiangyou Longhai Special Steel Co.,Ltd.

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