|
gptkbp:instanceOf
|
aluminum alloy
|
|
gptkbp:alsoKnownAs
|
chromoly steel
|
|
gptkbp:carbonContent
|
0.38–0.43%
|
|
gptkbp:chromiumContent
|
0.8–1.1%
|
|
gptkbp:containsElement
|
carbon
iron
manganese
silicon
molybdenum
chromium
|
|
gptkbp:corrosionResistance
|
moderate
|
|
gptkbp:countryOfOrigin
|
gptkb:United_States
|
|
gptkbp:density
|
7.85 g/cm³
|
|
gptkbp:developedBy
|
gptkb:American_Iron_and_Steel_Institute
|
|
gptkbp:form
|
gptkb:bar
sheet
tube
plate
|
|
gptkbp:hardness
|
197–237 HB (annealed)
|
|
gptkbp:heatTreatment
|
yes
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
AISI 4140
|
|
gptkbp:ironContent
|
balance
|
|
gptkbp:machinability
|
good
|
|
gptkbp:manganeseContent
|
0.75–1.00%
|
|
gptkbp:meltingPoint
|
1416°C
|
|
gptkbp:molybdenumContent
|
0.15–0.25%
|
|
gptkbp:siliconContent
|
0.15–0.35%
|
|
gptkbp:standardizedBy
|
gptkb:ASTM_A29
EN 1.7225
SAE J404
|
|
gptkbp:tensileStrength
|
655–1590 MPa
|
|
gptkbp:UNNumber
|
G41400
|
|
gptkbp:usedFor
|
gears
automotive parts
axles
bolts
shafts
machine parts
oil and gas industry components
|
|
gptkbp:weldability
|
gptkb:fire
|
|
gptkbp:yield
|
415–1510 MPa
|
|
gptkbp:bfsParent
|
gptkb:AISI_steel_grades
|
|
gptkbp:bfsLayer
|
7
|