12H25N16G7AR - эи835 round, wire, tube
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.
Mechanical properties (temperature 20 ° C)
|Assortment||Direction||s in||s T||d 5||Heat treatment|
|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|
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
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