EI439 (15H25T)

Country	Section	Category
CIS, Russia, Ukraine	Corrosion-resistant alloys and steels	Corrosion-resistant heat-resistant steel

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %	Mo, %	W, %
GOST 5632-14	68.09–76	< 1	< 0.8	24–27	< 0.9	< 0.3	< 1	< 0.2	< 0.035	< 0.15	< 0.025	< 0.3	< 0.2

Property
Performance characteristics Scale formation temperature: 1050 ° C
According to GOST 5949 Note. The norms of mechanical properties apply to samples taken from steel with a diameter or thickness of up to 60 mm.
For steel with a diameter or thickness of st. 60 to 100mm, a reduction in elongation of 1abs.% Is allowed,
relative narrowing by 5abs.% and impact strength by 4.9 J / cm2 with a norm of less than 78.4 J / cm2 and by 9.8 J / cm2 with a norm of 78.4 J / cm2 and more
For steel with diameter or thickness sv. 100 to 150mm is allowed to decrease the relative elongation by 3abs.%
a relative narrowing of 10 abs.% and impact strength of 9.8 J / cm2 at a rate of less than 78.4 J / cm2 and at 14.7 J / cm2 at a rate of 78.4 J / cm2 or more.
Annealing 730 - 770 ° C, cooling in air or in water or without heat treatment
According to GOST 5949 Yield strength:> 295 MPa Tensile strength:> 440 MPa Elongation:> 20% Elongation:> 45%
According to GOST 5949 As agreed M1 (tests at elevated temperature) Note By agreement
Calculated Properties Density: 7.65 g / cm3
Note Heat Resistant Steel Corrosion Resistant Steel Ferritic Steel

Germany
X 8 CrTi 25