Grade GX40CrNiSi 25-20
European Standard Steel Grade 1.4848
Corresponding Standard EN 10295-2002
Heat resistant steel castings
Brand/Supplier
China -> SHAGANG GROUP
Classification Cast Steel
Properties Corrosion Resistance
Density 7.8 g/cm3
GX40CrNiSi 25-20 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu * Mo W * V * Nb * Co *
Minimum Value 0.3 1 - - - 24 19 - - - - - -
Maximum Value 0.5 2.5 2 0.04 0.03 27 22 0.25 0.5 0.6 0.12 0.6 1
*The maximum content of the element is not specified
GX40CrNiSi 25-20 Mechanical Properties
condition Test Temperature Tensile Strength
σb
Mpa
Specified Plastic Yield Strength
Rp0.2
Mpa
Elongation or Extension Rate
δ
%
Cast steel Room Temperature ≥450 ≥220 ≥8
Cast steel 700°C 100h (1000h) Rupture Strength σr 100(80) Creep Strength for 1%-10000h
65
Cast steel 800°C 100h (1000h) Rupture Strength σr 75(50) Creep Strength for 1%-10000h
36
Cast steel 900°C 100h (1000h) Rupture Strength σr 47(28) Creep Strength for 1%-10000h
17
Cast steel 1000°C 100h (1000h) Rupture Strength σr 28(16) Creep Strength for 1%-10000h
7
Cast steel 1100°C 100h (1000h) Rupture Strength σr 12(6) Creep Strength for 1%-10000h
2.5
GX40CrNiSi25-20 Corresponding Standards(Same grade name, different standards)

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