20KH12VNMF - эп428 sheet, round, wire
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 20Х12ВНМФ | EP428 | Delivery from the stock, in stock |
Technical characteristics
Heat resistant stainless steel high alloy steel martensitic class. Specific weight 7.85 g/cm3. The alloy is alloyed with Nickel, manganese, molybdenum, vanadium, niobium, tungsten, silicon, a combination of corrosion resistance, high wear resistance and toughness (590 kJ/m2)
The percentage composition of (GOST 5632−72)
| Fe | With | V | Si | Mn | Ni | P | S | Cr | W | Mo |
|---|---|---|---|---|---|---|---|---|---|---|
| basis | 0.17 — 0.23 | 0.15 — 0.3 | ≤0,6 | 0.5 — 0.9 | 0.5 — 0.9 | ≤0,03 | ≤0,025 | 10.5 — 12.5 | 0.7 — 1.1 | 0.5 — 0.7 |
Mechanical properties (20°C)
| Assortment | GOST | sin | sT | d5 | y | Heat treatment |
|---|---|---|---|---|---|---|
| - | MPa | MPa | % | % | - | |
| Rod | 5949−75 | 740 | 590 | 15 | 50 | Hardening 1010 — 1060 °C, oil, Leave 660 — 670 °C, air, |
| Rod | 18968−73 | 740 | 590−755 | 15 | 50 | Normalized and tempered |
sT — the Limit of proportionality (yield strength for permanent deformation)
blower SB — the ultimate short-term strength
d5 — elongation at break.
| t°C | E 10— 5 | a 10 6 | l | r |
|---|---|---|---|---|
| Degree | MPa | 1/Degree | W/(m·degree) | kg/m3 |
| 20 | 2.12 | 7850 | ||
| 200 | 2.02 | 10.9 | 25 | 7800 |
| 400 | 1.9 | 11.4 | 26 | 7760 |
| 600 | 1.67 | 11.9 | 27 | 7700 |
| 700 | 12 | 7670 |
Cold treatment
Turning, milling, grinding, drilling.
Analogues
| Russia | USA | Japan |
|---|---|---|
| GOST | AISI | JIS |
| 2Х12ВНМФ | 616 | SUH616 |
Application
Details of steam and gas turbines, continuously operating under high load at t° up to +600°C
Supplier
Offer to buy a round, wire 20KH12VNMF — эп428 with specialized warehouses supplier Evek GmbH with delivery to any city. Full compliance with the international quality standards. Supplier Evek GmbH offers to buy a round, wire 20KH12VNMF — эп428, the price is optimal in this segment of the rental.
To buy, best price
We offer round, wire 20KH12VNMF — эп428, price is determined by the technological features of production without the inclusion of additional costs. You can order products in non-standard settings. In the segment of high alloy high-temperature steel Evek GmbH — best supplier.
