18Х11МНФБ - ep291 sheet, circle, wire
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 18X11MNFB | EP291 | 1.4923 | X22CrMoV12-1 | Delivery from the stock, in stock |
Technical characteristics
Martensitic grade high temperature resistant stainless steel. Specific gravity 7.85 g/cm3. Alloy is alloyed with nickel, manganese, molybdenum, vanadium, niobium, copper, silicon, combines corrosion resistance and high wear and impact toughness (590 kJ/m2)
Percentage composition (GOST 5632−72)
| Fe | С | Cu | Si | Mn | Ni | P | S | Mo | Nb | V |
|---|---|---|---|---|---|---|---|---|---|---|
| basis | 0.15 — 0.21 | ≤0,3 | ≤0,6 | 0.6 — 1 | 0.5 — 1 | ≤0,03 | ≤0,025 | 0.8 — 1.1 | 0.2 — 0.45 | 0.2 — 0.4 |
Steel is difficult to weld. Brinell hardness: HB 10 -1 = 229 — 269 N/mm2
Mechanical properties (temperature 20°C)
| Range | GOST | s in | sT | d5 | y | Heat treatment |
|---|---|---|---|---|---|---|
| - | MPa | MPa | % | % | - | |
| Bar | 5949−75 | 740 | 590−735 | 15 | 50 | Hardened at 1080 — 1130 °C, air, Tempering at 660 — 770 °C, air, |
| Bar | 18968−73 | 740 | 590−735 | 15 | 50 | Normalization and tempering |
sB — Ultimate short term tensile strength
sT — limit of proportionality (yield strength for permanent deformation)
d5 — Tensile elongation at break.
Cold working
Turning, milling, grinding, drilling.
| t° | E 10- 5 | a 10 6 | l | C |
|---|---|---|---|---|
| Degree | MPa | 1/Gradus | W/(m-degree) | J/(kg-degree) |
| 20 | 2.28 | |||
| 200 | 2.13 | 10.6 | 25.1 | 530 |
| 400 | 1.93 | 11.3 | 26.3 | 667 |
| 600 | 11.8 | 28 | 900 | |
| 800 | 12.4 |
Analogues
| Germany | EU | GOST |
|---|---|---|
| DIN, WNr | EN | GOST |
| X22CrMoV12−1 | X22CrMoV12−1 | 2X11MFBN |
Application
Steam and gas turbine parts, permanently operating under high load at t° up to +600°C
Supplier.
We offer to buy sheets, rounds, wires 18h11mfb, ep291 from specialized warehouses of the supplier Evek GmbH with delivery in any city. Full compliance with international quality standards. Supplier Evek GmbH offers to buy sheet, round, wire 18h11mnfb, ep291, the price is optimal in this segment of rolled products.
Buy a bargain price.
We offer sheet, round, wire 18h11mnfb, ep291, the price is determined by the technological features of production without the inclusion of additional costs. It is possible to order products with non-standard parameters. In the segment of martensitic class steel, Evek GmbH is a profitable supplier.