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30ХН3А - 31nicr14 - 1.5755 pipe, circle, rod

30ХН3А - 31nicr14 - 1.5755 pipe, circle, rod

Supplier Avlob offers to buy a pipe, a circle, a rod of grade 30ХН3А, 31nicr14, 1.5755 or any other brand 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.

Technical specifications

Structural steel, alloyed, chromium-nickel. This steel is boundedly weldable, sensitive to the formation of flocken, prone to temper brittleness. Hardness after annealing (GOST 4543−71): HB 10 -1 = 241 MPa. Supplier Avlob offers to buy a pipe, a circle, a rod of grade 30ХН3А, 31nicr14, 1.5755 at an affordable price today. The best price from the supplier.

Application

Crowns of driven wheels of traction gears of electric trains, gears and other improved details. Can be used at -80 ° C (wall thickness not more than 100 mm).

Percent composition, GOST 4543−71

C Si Mn Ni S P Cr Cu
0.27 — 0.33 0.17 — 0.37 0.3 — 0.6 2.75 — 3.15 ≤0.025 ≤0.025 0.6 — 0.9 ≤0.3

Mechanical properties (temperature 20 ° C)

Assortment Section s in s T d 5 y KCU Heat treatment
- mm MPa MPa % % kJ / m 2 -
Bars Ø 5 1670 1420 13 50 660 Tempering 850 ° C, oil, tempering 200 ° C, air.
Bars Ø 20 1670 1370 12 45 490 Tempering 850 ° C, oil, tempering 200 ° C, air.
Rods, GOST 4543−71 Ø 25 980 785 10 50 780 Tempering 820 ° C, oil, 530 ° C release, water.
  1. sв — Short-term strength limit
  2. sT — Proportionality limit (yield stress for permanent deformation)
  3. d5 — Elongation at break
  4. y — Relative contraction
  5. KCU — Impact strength

Physical properties

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
20 2.15   34 7850   268
200 1.95 11.5 36 7800 504 387
400 1.75 12.8 36 7730 536 567
600   13.5 31 7670 587 817
800     27th 7650 703  
1000         687  
  1. E — Modulus of elasticity of the first kind
  2. C is the specific heat
  3. a — Coefficient of temperature (linear) expansion [1 / degree]
  4. l — Coefficient of thermal conductivity (heat capacity of the material)
  5. r — specific gravity
  6. R is the electrical resistivity

Foreign analogues

Germany Japan France Bulgaria Poland Czech Republic
DIN, WNr JIS AFNOR BDS PN CSN
1.5755 SNC631 30NC11 30ChN3A 37HN3A 16440
30NiCr14 SNC836 30NC11FF      
31NiCr14   30NC12      

Delivery, price

Buy a pipe, a circle, a rod of grade 30ХН3А, 31nicr14, 1.5755 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 a pipe, a circle, a bar of steel 30ХН3А, 31nicr14, 1.5755 or from any other steel at the optimal price in bulk or at retail.

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