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A297 Grade HN

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America ASTM A297GradeHN 一般用耐热铬铁与镍铬铁合金钢铸件规格 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A297GradeHN / A297 Grade HN
Category Grade Standard Region/Area Standard Content
Metals A297 Grade HN ASTM A297/A297M America 一般用耐热铬铁与镍铬铁合金钢铸件规格

Chemical composition(mass fraction)(wt.%) of the A297 Grade HN

Element Min Max Similar
Si - 2.0000 -
S - 0.0400 -
P - 0.0400 -
Ni 23.0000 27.0000 -
Mo - 0.5000 -
Mn - 2.0000 -
Cr 19.0000 23.0000 -
C 0.2000 0.5000 -

Mechanical Properties of steel grade A297 Grade HN

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)
245 (≥) 247 (≥) 13 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade A297 Grade HN

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
12 - -     0.22 -  
572 731 - 23.3 142   -  
289 - 42 24.2   412 423

Heat Treatment of steel grade A297 Grade HN

Heat treated : 1862°C - 1989°C

Technological Curves of steel grade A297 Grade HN

Cross Reference Table (Equivalent Grade) of A297 Grade HN

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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