36NiCrMo16, 30NiCrMo16-6, 1.6773, 1.6747, 35NCD16, 30NCD16 - Steel for thermal improvement for the most heavy-duty machine parts in the aerospace industry according to PN-EN 10083-1, AIR 9160/C.

 

Standards Steel Grades
Chemical Composition %
C: Mn: Si: P: S: Cr: Mo: Ni: Cu:
EN 36NiCrMo16 - 36 NiCrMo 16 - 1.6773 - 6773
0.32 - 0.39 0.50 - 0.80 <0.40 <0.025 <0.025 1.6 - 2.0 0.25 - 0.45 3.6 - 4.1 -
PN 34HN3M
0.30 - 0.40 0.50 - 0.80 0.17 - 0.37 <0.030 <0.030 0.7 - 1.1 0.25 - 0.40 2.75 - 3.25 <0.15
PN 32HN3M
0.28 - 0.35 0.30 - 0.60 0.17 - 0.37 <0.04 <0.03 0.6 - 0.9 0.30 - 0.40 2.75 - 3.25 -
PN 36HNM
0.32 - 0.40 0.50 - 0.80 0.17 - 0.37 <0.035 <0.035 0.9 - 1.2 0.15 - 0.25 0.90 - 1.20 -
AFNOR 35NCD14 - 35 NCD 14 - 35NiCrMo14 - 35 NiCrMo 14
0.30 - 0.40 0.20 - 0.50 0.10 - 0.40 <0.030 <0.025 1.2 - 1.6 0.20 - 0.40 3.20 - 3.70 -
AIR 9160 35NCD16 - 35 NCD 16
0.37 0.45 - - - 1.80 0.45 4.00 -
AIR 9160 30NCD16 - 30 NCD 16 - E30NCD16
0.3 0.50 - - - 1.40 0.45 4.00 -
AFNOR 35NiCrMo16 - 35 NiCrMo 16
0.34 - 0.40 0.15 - 0.60 0.15 - 0.40 - - 1.6 - 2.0 0.3 - 0.6 3.5 - 4.50 -
UNI 35NiCrMo15 - 35 NiCrMo 15
0.30 - 0.38 0.30 - 0.60 0.15 - 0.35 <0.025 <0.02 1.6 - 1.9 0.25 - 0.45 3.50 - 4.00 -
DIN 30NiCrMo16-6 - 30 NiCrMo 16-6 - 1.6747 - LW 6747
0.27 - 0.33 0.40 - 0.60 0.15 - 0.35 <0.035 <0.035 1.3 - 1.5 0.40 - 0.50 3.80 - 4.20 -
EN 30NiCrMo16-6 - 30 NiCrMo 16-6 - 1.6747 - 6747
0.26 - 0.33 0.50 - 0.80 <0.40 <0.025 <0.025 1.2 - 1.5 0.30 - 0.60 3.30 - 4.30 -
GOST 36Ch2N4MA - 36Kh2N4MA - 36H2N4MA - 36Х2Н4МА
0.32 - 0.39 0.50 - 0.80 <0.40 <0.025 <0.025 1.6 - 2.0 0.25 - 0.45 3.60 - 4.10 -
TU 34ChN3M - 34KhN3M - 34ХН3М
0.30 - 0.40 0.50 - 0.80 0.17 - 0.37 <0.03 <0.03 0.7 - 1.1 0.25 - 0.40 2.75 - 3.25 -

 


Steel 36NiCrMo16, 1.6773,NCD35 16,NCD30 16 - specification and applications

36NiCrMo16, 35NCD16, 30NCD16 are permanent chromium-nickel-molybdenum alloy construction steels for the most heavy-duty machine parts, construction and equipment, and for aviation and aerospace industries.

These materials (and their substitutes) are characterized by significantly higher nickel content than 36HNM, 34HNM, 38HNM, and thus better tensile strength and yield point. In addition, they exhibit very good hardenability, impact resistance, load, deformation, wear and tensions resistances.

30NiCrMo16 / 1.6747 as the norm itself indicates, has less carbon content. 35NiCrMo16 / 1.2766 grade is classified as a tool steel and is used for the production of special knives or molds for the production of plastics.


Mechanical properties of 36NiCrMo16 steel:

Mechanical properties for individual dimensions
Dimensions: di (mm) 16 - 40mm 40 - 100mm 100 - 160mm 160 - 250mm
Thickness of semi-finished flat product: t (mm) 8 - 20mm 20 - 60mm 60 - 100mm 100 - 160mm
Tensile strength: Rm (MPa) 1250 - 1450 MPa 1100 - 1300 MPa 1000 - 1200 MPa 1000 - 1100 MPa
Yield point: Re (MPa) ≥ 1050 MPa ≥ 900 MPa ≥ 800 MPa ≥ 800 MPa
Notch toughness: KV (J) ≥ 30 J ≥ 35 J ≥ 45 J ≥ 45 J
Elongation: A (%) ≥ 9% ≥ 10% ≥ 11% ≥ 11%
Contraction: Z (%) ≥ 40% ≥ 45% ≥ 50% ≥ 50%

 


36NiCrMo16 steel heat treatment:

Heat treatment of the 36NiCrMo16 grade according to EN 10083-1
Normalizing annealing 850 - 880℃
Softening annealing 650 - 700℃
Hardening 865 - 885℃ w oleju, w wodzie lub oleju
Tempering 550 - 650℃
Hardness in softened state < 269 HB
Density ρ ~7,82 kg/dm3

 


In the 36NiCrMo16, 35NCD16, 30NCD16, 30NiCrMo16 grades we supply:

 


List of equivalents and other determinations of 36NiCrMo16 - 1.6773 steel:

6773, 36 NiCrMo 16, 35NCD14, 35 NCD 14, 35NiCrMo14, 35 NiCrMo 14, 34HN3M, 36HNM, 30NCD16, 30 NCD 16, E30NCD16, 35NCD16, 35 NCD 16, AIR 9160/C, 32HN3M, 30NiCrMo16-6, 30 NiCrMo 16-6, 1.6747, LW 6747, 6747, 36Ch2N4MA, 36Kh2N4MA, 36H2N4MA, 36Х2Н4МА, 34ChN3M, 34KhN3M, 34ХН3М, ASNA 3133, ASNA 3134, ASNA 3149, ASNA 3181, ASNA 3197, 1.6746, Fe-PL75, FDMA, 30NCD16.


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