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18Х12ВМБФР - ei993 sheet, circle, wire

18Х12ВМБФР - ei993 sheet, circle, wire

Supplier Avlob offers to buy a sheet, a circle, wire 18H12VMBFR — ei993 at an economical price. Regular customers can take advantage of discount discounts. The supplier guarantees the timely delivery of products to any specified address. The price is the best in this segment of rental.

Technical specifications

High-temperature steel, high-alloyed martensitic-ferritic grade. Steel is not used for welded structures. Specific gravity 7.85 g / cm3. Other designation 2Х12ВМБФР. Brinell hardness HB 10 -1 = 229 MPa.

Heat treatment

Normalization 1050 ° C. Cooling air, Release 750 ° C, 3 hours., Cooling air.

Percent composition, GOST 5632−72

Fe C Si Mn Ni S P Cr Mo W V Nb B
basis 0.15 — 0.22 ≤0.5 ≤0.5 ≤0.06 ≤0.025 ≤0.03 11 — 13 0.4 — 0.6 0.4 — 0.7 0.15 — 0.18 0.2 — 0.4 ≤0.003

Mechanical properties (temperature 20 ° C)

  1. sв — The limit of short-term strength: 740−820 MPa;
  2. sT — Proportionality limit (yield strength for permanent deformation): 490−640 MPa.
  3. d5 — Elongation at break: 12−17%;
  4. y — Relative narrowing: 45−56%;
  5. KCU — Impact strength: 390−900 kJ / m 2

Physical properties

t ° С
 E 10 — 5 a 10 6 l
Degree N / mm 2 1 / Degree W / (m · deg)
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  
  1. E — Modulus of elasticity of the first kind
  2. a — Coefficient of temperature (linear) expansion [1 / degree]
  3. l — Coefficient of thermal conductivity (heat capacity of the material)
  4. C is the specific heat

Application

Steam turbine blades, pipes and fasteners for long service life at temperatures up to 620 ° C.

Delivery, price

Buy sheet, circle, wire 18H12VMBFR — ei993 from the supplier Avlob can be at an affordable price. The price is formed on the basis of European production standards. Supplier Avlob offers to buy a corrosion-resistant sheet, a circle, wire 18H12VMBFR — ei993 in the range at the best price in bulk or at retail.

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