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20KHN3A - aisi 4320 - 20hn3a pipe, round, rod

20KHN3A - aisi 4320 - 20hn3a pipe, round, rod

Supplier Avlob offers to buy a pipe, a circle, a rod of mark 20ХН3А, aisi 4320, 20hn3a 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. Weldability is limited, sensitive to floccene formation, prone to temper brittleness. Hardness after annealing (GOST 4543−71): HB 10 -1 = 255 MPa. Supplier Avlob offers to buy a pipe, a circle, a bar of 20ХН3А brand, aisi 4320, 20hn3a at an affordable price today. The best price from the supplier.

Application

Gears, shafts, bushings, power pins, bolts, couplings, worms and other cemented parts, which require high strength, plasticity and toughness of the core and high surface hardness, operating under shock loads and at negative temperatures.

Percent composition, GOST 4543−71

C Si Mn Ni S P Cr Cu
0.17 — 0.24 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 GOST s in s T d 5 y KCU Heat treatment
- - MPa MPa % % kJ / m 2 -
Bars, Ø 15 4543−71 930 735 12 55 1080 Tempering and Leaving
  1. sв — Short-term strength limit
  2. sT — Proportionality limit (yield stress for permanent deformation)
  3. d5 — Elongation at break
  4. y — Relative contraction

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 2.12   36 7850   270
100 2.04 11.5 35 7830 494 300
300 1.88 12 33 7760 523 450
500 1.69 12.8 31   565 650
600 1.53 13.2 31 7660 586  
800 1.32 11.2 28   703  
  • E — Modulus of elasticity of the first kind
  • a — Coefficient of temperature (linear) expansion
  • l — Coefficient of thermal conductivity (heat capacity of the material)
  • r — specific gravity
  • C is the specific heat

Foreign analogs.

France Sweden Bulgaria Poland
AFNOR SS BDS PN
20NC11 2515 20ChN3A 20HN3A

Delivery, price

Buy a pipe, circle, bar 20ХН3А, aisi 4320, 20hn3a 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 20ХН3А, aisi 4320 or any other steel at the optimal price in bulk or at retail.