12H25N16G7AR - эи835 round, wire, tube
Technical specifications
High temperature refractory steel, Weldability without restrictions. Pipes, latches, fasteners and other parts are produced, which require resistance to oxidation at temperatures up to 600−650 ° C.
| Fe | C | Si | Mn | Ni | S | P | Cr | B |
| 47.815−57 | ≤0.12 | ≤1 | 5−7 | 15−18 | ≤0.02 | ≤0.035 | 23−26 | ≤0.01 |
Mechanical properties (temperature 20 ° C)
| Assortment | Direction | s in | s T | d 5 | Heat treatment |
| - | - | MPa | MPa | % | - |
| Sheet | Transverse | 1000 | 25 | Heating 1050−1080 ° C, air, | |
| Bar | Longitudinal | 750 | 350 | 45 | Heating 1050−1150 ° C, 0−1 hour air, |
| Profiles | Longitudinal | 700 | 330 | 40 | Heating 1100−1150 ° C, air, |
sв — Short-term strength limit
sT — Proportionality limit (yield stress for permanent deformation)
d5 — Elongation at break.
Physical properties of the material
| t ° C | E 10 -5 | a10 6 | l | r | R 10 9 |
| Degree | MPa | 1 / Grad | W / (m · deg) | kg / m 3 | Ohm · m |
| 20 | 1.965 | 13.82 | 7820 | 1060 | |
| 100 | 1.894 | 16.6 | 15.07 | 1100 | |
| 300 | 1.740 | 16.8 | 17.59 | 1200 | |
| 500 | 1.595 | 18.0 | 20.94 | 1280 | |
| 700 | 1.410 | 18.5 | 23.87 | 1330 | |
| 900 | 1.300 | 18.9 | 27.63 | 1390 |
E — Modulus of elasticity of the first kind
a — Coefficient of temperature (linear) expansion [1 / degree]
l — Coefficient of thermal conductivity (heat capacity of the material)
r — specific gravity
R is the electrical resistivity
Buy
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Delivery, price
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