18Х12ВМБФР - ei993 sheet, circle, wire

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
18X12VMBFR EI993 Delivery from the stock, in stock

Technical characteristics

Stainless high-temperature alloyed steel of martensitic - ferrite class. Specific gravity 7.85 g/cm3. Alloy is alloyed with nickel, manganese, molybdenum, vanadium, niobium, copper, silicon, combines corrosion resistance, high wear resistance and impact toughness (400-900 kJ/m2).

Percentage composition (GOST 5632-72)

Fe С V Si Mn Ni P S Cr W Mo Nb B
basis 0.15 - 0.22 0.15 - 0.18 ≤0,5 ≤0,9 ≤0,06 ≤0,03 ≤0,025 11 - 13 0.4 - 0.7 0.4 - 0.6 0.2 - 0.4 ≤0,003

Steel is difficult to weld. Brinell hardness: HB 10 -1 = 229 N/mm2

Mechanical properties (temperature 20°C)

Range Diameter Direction s in sT d5 y Heat treatment
- mm - MPa MPa % % -
Tubes 30x6 Transverse 820 640 17 56 Normalization 1050 °C, Cooling air, Tempering 750 °C, 3 hours. Cooling air,
Tubes 219x27 Transverse 750 590 15 43 Normalization 1050 °C, Cooling air, Tempering 750 °C, 3 hours,
Bar, GOST 5949-75 Ø 60 740 490 12 45 Hardening and tempering

sB - Ultimate short time tensile strength

sT - limit of proportionality (yield strength for permanent deformation)

d5 - Tensile elongation at break.

t°C E 10- 5 a 10 6 l
degree MPa 1/Gradus W/(m-degree)
20 2.28 27.6
200 2.15 11.13 24
400 1.95 11.8 26.3
600 1.73 12.5 28
800 11.6

Cold working

Turning, milling, grinding, drilling.

Application

Steam and gas turbine components under continuous high load at t° up to +620°C

supplier.

We offer to buy sheets, rounds, wires 18Х12ВМБФР, ei993 from specialized warehouses of supplier Evek GmbH with delivery in any city. Full compliance with international quality standards. Supplier Evek GmbH offers to buy sheet, round, wire 18Х12ВМБФР, ei993, the price is optimal in this segment of rolled products.

Buy a bargain price.

We offer sheet, round, wire 18Х12ВМБФР, ei993, the price is determined by the technological features of production without including additional costs. It is possible to order the products of non-standard parameters. In the segment of heat-resistant high-alloy steel Evek GmbH is a profitable supplier.