The use of stainless pipes 12h18N10T
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Technical specifications
Permissible temperature limit of operation up to + 600 ° С. Weldability without restrictions. Steel is not sensitive to flock formation.
Percentage composition, GOST 5632 — - 72
| Fe | C | Si | Mn | Ni | S | P | Cr | Cu | Ti |
| basis | ≤0.12 | ≤0.8 | ≤2 | 9 — 11 | ≤0.02 | ≤0.035 | 17 — 19 | ≤0.3 | 5 С — 0.8 |
Austenitic grade steel. Hardness (GOST 25054−81) HB 10 -1 = 179 MPa.
physical characteristics
| t ° С | E 10 — 5 | a 10 6 | l | r | C | R 10 9 |
| Degree | MPa | 1 / Degree | W / (m · deg) | kg / m 3 | J / (kg · deg) | Ohm · m |
| 20 | 1.98 | 15 | 7920 | 725 | ||
| 200 | 1.89 | 17th | 18 | 496 | 861 | |
| 400 | 1.74 | 17.5 | 21 | 538 | 976 | |
| 600 | 1.57 | 18.2 | 25 | 563 | 1075 | |
| 800 | 18.9 | 26th | 596 | |||
| 900 | 19.3 |
- E — Modulus of elasticity of the first kind
- C is the specific heat
- a — Coefficient of temperature (linear) expansion
- l — Coefficient of thermal conductivity (heat capacity of the material)
- r — specific gravity
- R is the electrical resistivity
Application
Welded vessels operating in dilute solutions of nitric, acetic, phosphoric acids, solutions of alkalis and salts, and other parts operating under pressure at temperatures from -196 to +600 ° C, and in the presence of corrosive media up to + 350 ° C.
Delivery, price
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