Grade QTRSi4Mo
Corresponding Standard GB /T 9437-2009
Heat Resistant Iron Castings
Classification cast Iron
QTRSi4Mo Chemical Element Composition Content (%)
Component C Si Mn P S Mo
Minimum Value 2.7 3.5 - - - 0.5
Maximum Value 3.5 4.5 0.5 0.07 0.015 0.9
QTRSi4Mo Mechanical Properties
Tensile Strength
σb
Mpa
Hardness
HBW
Room Temperature ≥520 188~241
Short-term high temperature 700°C ≥101
Short-term high temperature 800°C ≥46

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