EI268
Classification
Chemical composition
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | V, % | P, % | C, % | S, % | Mo, % | W, % |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | V, % | P, % | C, % | S, % | Mo, % | W, % |
GOST 5632-14 | 76.475–82.39 | < 0.8 | < 0.8 | 16–18 | < 0.2 | < 0.3 | 1.5–2.5 | < 0.2 | < 0.03 | 0.11–0.17 | < 0.025 | < 0.3 | < 0.2 |
Information on suppliers
Properties
Property |
---|
Property |
Physical properties Density: 7.7 g / cm3 Ac1 critical point: 730 - 740 ° C Ac3 critical point: 845 ° C |
Performance data Application temperature: <400 ° C Scaling temperature: 800 ° C |
According to ST TsKBA 025-2006 Application temperature: -70 - 350 ° 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 at a rate of less than 78.4 J / cm2 and by 9.8 J / cm2 at a rate of 78.4 J / cm2 or more. |
For steel with a diameter or thickness of st. 100 to 150mm, a reduction in elongation of 3abs.% Is allowed, |
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. |
By agreement M1 (tests at elevated temperature) Note By agreement |
Annealing or tempering Hardness HB: <285 |
Option 1 Note Yield Strength:> 835 MPa Tensile Strength:> 1080 MPa Elongation:> 10% |
Option 1 Note Impact strength KCU at 20 ° C:> 49 J / cm2 Relative narrowing:> 30% |
Option 2 Note Yield Strength:> 635 MPa Tensile Strength:> 835 MPa Elongation:> 16% |
Option 2 Note Impact strength KCU at 20 ° C:> 75 J / cm2 Relative narrowing:> 55% |
Note Turbine Parts Corrosion Resistant Steel Martensitic Ferritic Steel Heat Resistant Steel |
Analogues
Standards
Standard | Description |
---|---|
Standard | Description |
GOST 5632-14 | |
GOST 5632-72 | |
GOST 5949-18 | |
OST 108.958.04 - 85 |