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Steel 38Х2НМФ

Description

Steel 38Х2НМФ

Steel 38KH2NMF: brand of steels and alloys. Below is a systematized information on the purpose, chemical composition, types of supplies, substitutes, temperature of critical points, physical, mechanical, technological and casting properties for the brand — Steel 38Kh2NMF.

General information about steel 38Х2НМФ

Substitute brand
steel 34ХН1М, 40ХН2МА, 34ХН3М.
Delivery type
Forgings and forged billets TU 24.11.01.073−86.
Application
Critical parts of heavy and transport engineering such as axles, shafts and other highly loaded parts, as well as parts used in low temperatures.

Chemical composition of 38Kh2NMF steel

Chemical element %
Vanadium (V) 0.08−0.15
Silicon (Si) 0.17−0.37
Manganese (Mn) 0.50−0.80
Molybdenum (Mo) 0.20−0.30
Nickel (Ni) 0.60−0.90
Sulfur (S), no more 0.030
Carbon (C) 0.32−0.42
Phosphorus (P), no more 0.030
Chromium (Cr) 1.80−2.30

Mechanical properties of steel 38H2NMF

Mechanical properties of forgings

Heat treatment, delivery condition Section, mm σ 0.2, MPa σ B, MPa δ 5 ,% ψ,% KCU, J / m 2 HB
Hardening 850−870 ° C. Vacation 620−650 ° C. KCU (+ 20 / -40)
  <300 700 850 12 38 50/35 262
  300−500 600 750 12 35 45/35 235
  500−800 550 700 ten thirty 40/30 223
Hardening 880 ° C. Vacation 640−650 ° C.
Sample cutting location — center 300 750 870 20 64 220 266
Sample cutting location — center 500 720 840 17 54 90 257
Sample cutting location — 1 / 3R 500 700−760 800−900 14−16 50−54 100−160 266

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