Grade QT400-18R
Corresponding Standard GB /T 1348-2019
Spheroidal Graphite Iron Castings
Classification cast Iron
QT400-18R Mechanical Properties
Thickness
t
mm
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Impact Energy Absorption
KV2
J
t≤30 ≥400 ≥250 ≥18 Room temperature (23±5)℃, average of three samples
≥14
30<t≤60 ≥390 ≥250 ≥15 ≥14
60<t≤200 ≥370 ≥240 ≥12 ≥12
QT400-18R Corresponding Standards(Same grade name, different standards)

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