EI531 (12H2MFB)

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

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	V, %	P, %	C, %	S, %	Nb, %	Mo, %
TU 14-1-3409-82	93.73–95.82	< 0.025	0.4–0.7	2.1–2.6	< 0.25	0.2–0.35	< 0.025	0.08–0.12	0.4–0.7	0.5–0.8	0.5–0.7

Property
Billet pipe according to TU 14-1-148-72 Yield strength:> 350 MPa; Temporary resistance:> 450 MPa; Relative elongation:> 30%
Pipe blank according to TU 14-1-148-72 Impact strength KCU at 20 ° C:> 150 J / cm2 Relative narrowing:> 70% Critical point Ac1: 775 - 825 ° C
Pipe blank according to TU 14-1-148-72 Critical point Ac3: 865 - 925 ° C Critical point Ar1: 715 - 765 ° C Critical point Ar3: 770 - 820 ° C
Billet pipe according to TU 14-1-1954-77 Yield strength:> 280 MPa; Temporary resistance:> 450 MPa; Relative elongation:> 25%
Pipe blank according to TU 14-1-1954-77 Impact strength KCU at 20 ° C:> 100 J / cm2 Critical point Ac1: 775 - 825 ° C Critical point Ac3: 865 - 925 ° C
Billet pipe according to TU 14-1-1954-77 Critical point Ar1: 715 - 765 ° C Critical point Ar3: 770 - 820 ° C
Sheets according to TU 14-1-3409-82 Yield strength:> 300 MPa Tensile strength:> 450 MPa Elongation:> 20%
Sheets according to TU 14-1-3409-82 Impact strength KCU at 20 ° C:> 100 J / cm2 Critical point Ac1: 775 - 825 ° C Critical point Ac3: 865 - 925 ° C
Sheets according to TU 14-1-3409-82 Critical point Ar1: 715 - 765 ° C Critical point Ar3: 770 - 820 ° C
Weldability By NAKS Group: M02 (W02)
Calculated Properties Density: 7.83 g / cm3
Note Boiler system pipes

Standard	Description
TU 14-1-3409-82