07Х25Н16АГ6Ф - эп750 sheet, round, wire
07Х25Н16АГ6Ф steel is smelted in an open induction furnace method of electroslag remelting. Production of normalized GOST 5632−72 (alloy steels and alloys with corrosion resistance, heat resistance and heat resistance), as well as the following: 14−1-1644−76; 14−1-1731−76; 14−1-3109−81; TU 14−1-911−74. This mark is used for the production of shtampovannyh structures with a complex shape, operating at temperatures up to 850 degrees Celsius.
Chemical composition 07Х25Н16АГ6Ф
Mechanical properties at t° 20°C
|TU||Type of products||σв, N/mm2||σ0,2, N/mm2||δ5, %||ψ, %|
|THAT 14−1-1731−74||Thick sheet||740||345||35||-|
|THAT 14−1-1644−76||A thin sheet||740||345||25 (δ4)||-|
Mechanical properties of the sheet (rod) at a temperature of 20 degrees Celsius and higher temperatures (annealing at 1150 degrees)
|tисп, °C||σв, N/mm2||σ0,2, N/mm2||δ5, %||ψ, %||KCU, j/cm2|
|20||760 (780)||345 (345)||65 (55)||78||380 (250)|
|600||470 (470)||177 (196)||45 (32)||52||-|
|700||360 (390)||147 (-)||25 (16)||28||-|
|800||260 (290)||127 (147)||21 (16)||21||-|
|850||220 (250)||118 (167)||27 (15)||26||330|
The alloy has a density of 7.83 g/cm3. The average modulus of elasticity equal to 19,3 · 104 N/mm Coefficient of thermal conductivity (λ) thermal coefficient of linear expansion (α)
|tисп, °C||λ, W/(m · K)||Temperature range, °C||α · 106, K-1||tисп, °C||λ, W/(m · K)||Temperature range, °C||α · 106, K-1|
Resistance to corrosion
Indicators of heat resistance and the oxidation time in conditions of calm air
|tисп, °C||νок, mm/year|
Hot pressure treatment, is performed at a temperature from 1160 to 980 °C. Annealing is carried out at t° 1050−1150°C With air cooling. Steel welded all types of welding. Manual arc welding is advised to perform using electrodes of the type О3Л-9A.
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