25KH1MF - 21CrMoV5-7 - 21hmf pipe, round, rod
Supplier Avlob offers to buy a pipe, a circle, rods 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.
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 a pipe, a circle, rods 25H1MF, 21hmf at an affordable price today. The best price from the supplier.
Bolts, flat springs, pins and other fasteners operating at temperatures up to 500−510 ° C.
Percent composition, GOST 20072−74
|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|
Mechanical properties (temperature 20 ° C)
|Assortment||GOST||For example.||s in||s T||d 5||y||KCU||Heat treatment|
|-||-||MPa||MPa||%||%||kJ / m 2||-|
|Bars, strips, ≤25 mm||20072−74||Prod.||880||735||14||50||590||Tempering 880 — 900 ° C, oil, Holiday 640 — 660 ° C. Cooling air,|
|Bars, strips||20072−74||Prod.||780||665||16||50||590||Tempering 930 — 950 ° C, oil, Holiday 620 — 660 ° C.|
- sв — Short-term strength limit
- sT — Proportionality limit (yield stress for permanent deformation)
- d5 — Elongation at break.
- y — Relative contraction
- KCU — Impact strength
|t ° С
||E 10 — 5||a 10 6||l||r||C||R 10 9|
|Grad||MPa||1 / Grad||W / (m · deg)||kg / m 3||J / (kg · deg)||Ohm · m|
- E — Modulus of elasticity of the first kind
- C is the specific heat
- a — Coefficient of temperature (linear) expansion
- l — Coefficient of thermal conductivity (heat capacity of the material)
- r — specific gravity
- R is the electrical resistivity
|USA||Germany||France||England||European Union||China||Czech Republic|
Buy pipe, circle, rod 25H1MF, 21hmf at an affordable price from the supplier Avgob today. The price is formed on the basis of European production standards. Vendor Avlob offers to buy a pipe, a circle, a rod 25H1MF, 21hmf or any other brand at the optimal price in bulk or at retail. We invite you to partner cooperation.