Construction alloy steel - chromium-molybdenum-vanadium for work at higher 21HMF PN-75/H-84024
| Steel grade | Standard |
Chemical composition (%) |
||||||||
| C | Mn | Si | P | S | Cr | Ni | Mo | other |
||
| 21HMF | PN | 0,170,25 |
0,300,50 | 0,300,60 | max 0,035 | max 0,035 | 1,201,50 | max 0,60 | 1,00 1,20 | V 0,25-0,35 |
| 21 CrMoV 5-721CrMoV5-7 1.7709 |
DIN W.nr |
0,170,25 | 0,400,80 | max 0,40 | max 0,030 | max 0,030 | 1,201,50 | max 0,60 | 0,650,80 | V 0,25-0,35Al max 0,03 |
| 21 CrMoV 5-1121CrMoV5-11
1.8070 |
DIN W.nr |
0,170,25 | 0,300,60 | 0,300,60 | max 0,035 | max 0,035 | 1,20 1,50 | max 0,60 | 1,00 1,20 | V 0,25-0,35 |
| 20 CDV 5-0720CDV5-07 |
AFNOR | 0,170,24 | 0,250,50 | max 0,50 | max 0,015 | max 0,015 | 1,101,50 | max0,50 |
0,500,80 | V 0,15-0,35 |
| 21 CrMoV 511 SW21CrMoV511SW |
ONORM | 0,170,25 | 0,300,50 | 0,300,60 | max 0,035 | max 0,035 | 1,201,50 | - | 1,00 1,20 | V 0,25-0,35 |
Steel used for producing steam turbines plates, nuts, screws, spacers, spare tanks, etc. working at the temperatures up to about 540 ° C
21HMF grade or equivalent, is provided as round-rolled bars, forgings free,
forged round bars.
15HM
20HM
10H2M
13HMF
21HMF
26H2MF
30H2MF
34HN3M
