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AISI 9840

Favorite Datasheet

America AISI AISI9840 Former SAE Standard and Former SAE Ex-Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AISI9840 / AISI 9840
Category Grade Standard Region/Area Standard Content
Metals AISI 9840 SAE J 1249 America Former SAE Standard and Former SAE Ex-Steels

Chemical composition(mass fraction)(wt.%) of the AISI 9840

Element Min Max Similar
Si 0.2000 0.3500 -
S - 0.0400 -
P - 0.0400 -
Ni 0.8500 1.1500 -
Mo 0.2000 0.3000 -
Mn 0.7000 0.9000 -
Cr 0.7000 0.9000 -
C 0.3800 0.4300 -

Mechanical Properties of steel grade AISI 9840

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)
437 (≥) 841 (≥) 11 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade AISI 9840

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
31 - -     0.31 -  
126 578 - 14.3 242   -  
658 - 33 22.2   322 413

Heat Treatment of steel grade AISI 9840

Heat treated : 1121°C - 1371°C

Technological Curves of steel grade AISI 9840

Cross Reference Table (Equivalent Grade) of AISI 9840

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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