|
gptkbp:instanceOf
|
stainless steel grade
|
|
gptkbp:alsoKnownAs
|
1.4021
Alloy 420
UNS S42000
|
|
gptkbp:application
|
gptkb:sword
surgical instruments
cutlery
molds
pump shafts
valve components
|
|
gptkbp:carbonContent
|
0.15-0.40%
|
|
gptkbp:chromiumContent
|
12-14%
|
|
gptkbp:color
|
silvery
|
|
gptkbp:corrosionResistance
|
moderate
|
|
gptkbp:countryOfOrigin
|
gptkb:United_States
|
|
gptkbp:density
|
7.75 g/cm3
|
|
gptkbp:elongation
|
15% (in 50 mm, annealed)
|
|
gptkbp:form
|
gptkb:Cyclops
gptkb:bar
sheet
rod
plate
|
|
gptkbp:hardness
|
up to 50 HRC (after heat treatment)
|
|
gptkbp:heatResistant
|
up to 650°C (in air)
|
|
gptkbp:heatTreatment
|
hardenable by heat treatment
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
AISI 420
|
|
gptkbp:leadContent
|
none
|
|
gptkbp:machinability
|
good
|
|
gptkbp:magnetType
|
yes
|
|
gptkbp:manganeseContent
|
max 1.0%
|
|
gptkbp:material
|
martensitic stainless steel
|
|
gptkbp:meltingPoint
|
1450°C
|
|
gptkbp:modulusOfElasticity
|
200 GPa
|
|
gptkbp:nickelContent
|
max 0.6%
|
|
gptkbp:nitrogenContent
|
max 0.11%
|
|
gptkbp:oxidationResistance
|
good
|
|
gptkbp:phosphorusContent
|
max 0.04%
|
|
gptkbp:poissonsRatio
|
0.27
|
|
gptkbp:siliconContent
|
max 1.0%
|
|
gptkbp:standardizedBy
|
gptkb:AISI
|
|
gptkbp:standardNumber
|
ASTM A276
EN 10088-1
|
|
gptkbp:sulfurContent
|
max 0.03%
|
|
gptkbp:surface
|
gptkb:ground
pickled
polished
|
|
gptkbp:tensileStrength
|
700-850 MPa (annealed)
|
|
gptkbp:thermalConductivity
|
24.9 W/m·K
|
|
gptkbp:weldability
|
poor
|
|
gptkbp:yield
|
345 MPa (annealed)
|
|
gptkbp:bfsParent
|
gptkb:AISI_steel_grades
|
|
gptkbp:bfsLayer
|
7
|