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Sheet, tape, wire 25H1MF - 21CrMoV5-7 - 21hmf

Sheet, tape, wire 25H1MF - 21CrMoV5-7 - 21hmf

Technical specifications

Heat-resistant steel is heat-resistant perlite class, difficult to weld, sensitive to flock formation. Not prone to vacation embrittlement. Hardness after hardening and tempering HB 10 -1 = 241 — 321 MPa. Hardness of hot-rolled annealed rolled steel (GOST 20072−74) HB 10 -1 = 229 MPa. Recommended application temperature up to 510 ° C; The temperature of intense scale formation is 600 ° C; working life — more than 10000 hours. Supplier Avlob offers to buy wire, sheet, 25H1MF tape, 21hmf at an affordable price today. The best price from the supplier.

Heat treatment

  1. 1) Tempering 930 — 950 ° C, oil, Holiday 620 — 660 ° C.
  2. 2) Rolling ≤25 mm. Tempering 880 — 900 ° C, oil, Holiday 640 — 660 ° C. Cooling air,

Mechanical properties (temperature 20 ° C)

  1. sv — Short-term strength limit: 780 -880 MPa
  2. sT — Proportionality limit (yield strength for permanent deformation): 665 -735 MPa
  3. d5 — Elongation at break: 14−16%.
  4. y — Relative narrowing: 50%
  5. KCU — Impact strength: 590 kJ / m 2

Application

Bolts, flat springs, pins and other fasteners operating at temperatures up to 500−510 ° C.

Percent composition, GOST 20072−74

C Si Mn Ni S P Cr Mo V Cu
0.22 — 0.29 0.17 — 0.37 0.4 — 0.7 ≤0.3 ≤0.025 ≤0.03 1.5 — 1.8 0.25 — 0.35 0.15 — 0.3 ≤0.2

Physical properties

t ° С
 E 10 — 5 a 10 6 l r C R 10 9
Grad MPa 1 / Grad W / (m · deg) kg / m3 J / (kg · deg) Ohm · m
20 2.17     7840    
100 2.11 11.3 39.8   462 312
400 1.91 13.9 35.9 7720   574
600 1.67 14.4   7650   826
  1. E — Modulus of elasticity of the first kind
  2. C is the specific heat
  3. a — Coefficient of temperature (linear) expansion
  4. l — Coefficient of thermal conductivity (heat capacity of the material)
  5. r — specific gravity
  6. R is the electrical resistivity

Foreign analogues

USA Germany France England European Union China Czech Republic
- DIN, WNr AFNOR BS En GB CSN
A193B14 1.7733 21CrMoV5−7 21CrMoV5−7 1.7709 25CrMoVA 15236
  21CrMoV5−7     21CrMoV5−7    
  24CrMoV55          

Buy

Supplier Avgloft offers wire, sheet, tape 25H1MF, 21CrMoV5−7, 21hmf at a bargain price. The supplier guarantees the timely delivery of products to any specified address. Regular customers can take advantage of discount discounts. The price is the best in this segment of rental. We invite you to partner cooperation.

Delivery, price

Buy wire, sheet, 25H1MF tape, 21hmf at an affordable price from the supplier Avlob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy wire, sheet, tape 25H1MF, 21hmf or any other brand at the optimal price in bulk or at retail. We invite you to partner cooperation.

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