Construction alloy steel 36HNM,36CrNiMo4,1.6511,40HN2MA,40KHN2MA,40ChN2MA,40NCD3,G43400,4340 -

Construction alloy steel  - for hardening and tempering nickel-chromium-molybdenum
36HNM PN-89/H-84030/04
Steel grade

Standard

Chemical composition (%)

C
Mn
Si
P
S
Cu
Cr
Ni
Mo
other
36HNM
PN
0,32
0,40
0,50
0,80
0,17
0,37
max
0,035
max
0,035
max
0,30
0,90
1,20
0,90
1,20
0,15
0,25
-
36 CrNiMo 4
36CrNiMo4

1.6511

DIN

W.nr
0,32
0,40
0,50
0,80
max
0,40
max
0,035
max
0,035
-
0,90
1,20
0,90
1,20
0,15
0,30
-
40HN2MA
40KHN2MA
40ChN2MA
40ХН2МА
GOST
0,37
0,44
0,50
0,80
0,17
0,37
max
0,025
max
0,025
max
0,20
0,60
0,90
1,25
1,65
0,15
0,25
V max 0,05
Ti max 0,03
W max 0,20
N max 0,008
40 NCD 3
40NCD3
AFNOR
0,36
0,43
0,50
0,80
0,10
0,40
max
0,035
max
0,035
-
0,60
0,90
0,70
1,00
0,15
0,30
-
G 43400
G43400
4340
A 29 (4340)

UNS

AISI
ASTM
0,38
0,43
0,65
0,85
0,20
0,35
max
0,035
max
0,040
-
0,70
0,90
1,65
2,00
0,20
0,30
-
Steel with good ductility and hardenability, intended for heavily loaded parts, among the others for mining and road 
machines with the thickness of 100 mm: shafts, connecting rods, shafts of steam turbines, shafts for pumps
internal combustion engines - cars, planes and other vehicles.

36HNM grade or equivalent is provided as round-rolled bars, forgings,
round bars, square bars, flat bars, plates, cubes, rings, rings.
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