Specijalnost čelik okrugle šipke
50RA OST 3-98-80
φ32- hot-rolled-for cold forging and naknadna strojna obrada
Uvod u proizvod
50RA OST 3-98-80
φ32- Hot-Rolled-for cold kovanje and naknadna strojna obrada
50RA Kemijski sastav
|
Element |
C |
Si |
Cr |
Ni |
P |
S |
Cu |
B(bor) |
|
|
Od |
0.47 |
0.17 |
0.50 |
0.10 |
max0.30 |
max0.025 |
max0.025 |
max0.30 |
0.001-0.0045 |
|
0.55 |
0.37 |
0.80 |
0.30 |
The steel shall be delivered with narrowed range of carbon content ,as follows :C{{0}}(0.50-0.55) percent
|
σB |
- |
Greater than or equal to 800 |
|
σT |
- |
Greater than or equal to 550 |
|
δ5 |
- |
Greater than or equal to 10 |
|
- |
Greater than or equal to 40 |
|
|
k ,2 |
- |
Greater than or equal to 6 |
|
Brinell hardness-HB |
Less than or equal to 217(condition upon delivery:annealed-OT) |
- |
Par: Specijalni čelik
Sljedeći: Čelična čahura
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