CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | W.n. | AFNOR | UNE | B.S. | AISI/SAE | |
| ZF7B | 16MnCr5+Boro | ||||||
CHEMICAL COMPOSITION % (EN 10084)
| STEEL DESIGNATION | CHEMICAL COMPOSITION | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | C |
Si max |
Mn |
P max |
S | Cr | Mo | Ni | B |
| ZF7B | CAP.ZF | 0,15 ÷ 0,20 | 0,40 | 1,10 ÷ 1,40 | 0,025 | 0,02 ÷ 0,035 | 1,00 ÷ 1,30 | 0,001 ÷ 0,003 | ||
CONCENTRATION LIMITS OF THE ELEMENTS THAT ARE NOT INDICATED IN THE TABLE CAN BE DEDUCED IN THE EN 10020 REGULATION.
JOMINY HARDENABILITY (ZF)
| STEEL DESIGNATION | RANGE LIMITS | HRC HARDNESS MEASURED FROM THE QUENCHED END OF THE TEST TUBE (MM) | |||
|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | 5 | 10 | 25 | |
| ZF7B | CAP.ZF | max | 39 | 35 | 27 |
| min | 43 | 39 | 31 | ||
USUALLY AVAILABLE EX STOCK
| M.T. | QUALITY | HEAT TREATMENT | SURFACE | DIAMETER (mm) |
|---|---|---|---|---|
 |
ZF7B (20MnCrB5) | Soft-annealed | rolled reeled | 115-180 |
 |
Download technical sheet |