Construction alloy steel – for hardening and tempering nickel-chromium-molybdenum 30H2N2M PN-72/H-84035
Destined for the production of the loaded equipment
| Steel grade | Standard |
Chemical composition (%) |
|||||||||
| C |
Mn |
Si |
P |
S |
Cu |
Cr |
Ni |
Mo |
other |
||
| 30H2N2M | PN | 0,260,34 |
0,300,60 | 0,17 0,37 | max 0,035 | max 0,035 | max 0,20 |
1,802,10 | 1,802,10 | 0,250,35 | - |
| 30 CrNiMo 8 30CrNiMo8 1.6580 |
DIN W.nr |
0,260,34 | 0,300,60 | max 0,40 | max 0,035 | max 0,035 | - | 1,802,20 | 1,802,20 | 0,300,50 | - |
| 30 NCD 8 30NCD8 |
AFNOR | 0,250,35 | 0,150,55 | max 0,40 | max 0,030 | max 0,025 | - | 1,90 2,40 | max2,40 |
0,600,80 | - |
| 30 CND 8 30CND8 |
AFNOR | 0,260,33 | 0,300,60 | 0,10 0,40 | max 0,030 | max 0,025 | - | 1,802,20 | 1,802,20 | 0,300,50 | - |
| 31CrNiMo8 | ISO |
0,270,34 | 0,300,60 | 0,10 0,40 | max 0,035 | max 0,035 | - | 1,802,20 | 1,802,20 | 0,300,50 | - |
| 30KHN2MA 30ChN2MА30HN2MA 30ХН2MA |
GOST | 0,270,34 | 0,300,60 | 0,17 0,37 | max 0,025 | max 0,025 | max 0,30 | 0,600,90 | 1,251,65 | 0,200,30 | V max 0,05Ti max 0,03W max 0,20N max 0,008 |
| 30 MoCrNi 20 30MoCrNi20 30 MoCrNi 20q 30MoCrNi20q |
STAS | 0,260,34 | 0,300,60 | 0,17 0,37 | max 0,035 | max 0,035 | max 0,30 | 1,802,20 | 1,802,20 | 0,300,50 | Ti max 0,02
As max 0,05 |
Steel used in the production of machinery parts and components, very heavily loaded section to fi 250:
aviation equipment, power, etc., such as transmission shafts, crankshafts, axles.
30H2N2M grade or equivalent is provided as round-rolled bars, forgings,
round bars, square bars, flat bars, small plates and rings.
