25CrMo4 (1.7218)
EN 10083-3 / ISO 683-2 / UNI 7845
Trempé revenu (+QT)
PROPERTIES AND EMPLOYEMENTS
IT IS A STEEL WITH A LOW CONTENT OF CARBON AND IT HAS A LOW HARDENABILITY, BUT IT IS TOUGH AND EASILY WELDABLE. IT IS COMMONLY USED FOR THE PRODUCTION OF TUBES WITH HIGH TOUGHNESS AND GOOD RESISTANCE THAT ARE DESTINED TO THE MECHANICAL INDUSTRY AND TO NUMEROUS APPLICATIONS IN THE FIELD OF AERONAUTICS AND MOTOR INDUSTRY.
IT IS NOT SENSIBLE TO TEMPERING FRAGILITY AND IT CAN BE TREATED WITHOUT RELEVANT RISKS OF BREAKAGE OR DEFORMATIONS. IT IS EASILY MACHINABLE WITH MACHINE TOOLS.
IT IS NOT SENSIBLE TO TEMPERING FRAGILITY AND IT CAN BE TREATED WITHOUT RELEVANT RISKS OF BREAKAGE OR DEFORMATIONS. IT IS EASILY MACHINABLE WITH MACHINE TOOLS.
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| steel grade | EUROPA | Germany | FRANCE | Spain | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | Werk.n. | AFNOR | UNE | B.S. | AISI/SAE | |
| 25CrMo4 | 25CrMo4 | 25CrMo4 | 1.7218 | 25CD4 | F222 | 708M25 | |
CHEMICAL COMPOSITION % (EN 10083-3)
| STEEL DESIGNATION | CHEMICAL COMPOSITION | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC' | W.nr. | C | Si max | Mn | P max | S | Cr | Mo | Ni | V |
| 25CrMo4 | 1.7218 | 0,22 ÷ 0,29 | 0,40 | 0,60 ÷ 0,90 | 0,025 | max. 0,035 | 0,90 ÷ 1,20 | 0,15 ÷ 0,30 | - | - |
| 25CrMoS4 | 1.7213 | 0,020 ÷ 0,040 | ||||||||
CONCENTRATION LIMITS OF THE ELEMENTS THAT ARE NOT INDICATED IN THE TABLE CAN BE DEDUCED IN THE EN 10020 REGULATION.
MECHANICAL CHARACTERISTICS (EN 10083-3)
| STEEL | MECHANICAL CHARACTERISTICS FOR THE REDUCED SECTION (EN 10083-1:2006, ATTACHMENT A) WITH A DIAMETER (D) OF | |||||||||||||||||||||||||
| d ≤ 16mm | 16mm < d ≤ 40mm | 40mm < d ≤ 100mm | 100mm < d ≤ 160mm | 160mm < d ≤ 250mm | ||||||||||||||||||||||
| SYMBOLIC | W.nr. | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min | Re min | Rm | A min | Z min | KVb min |
| MPa | % | % | J | MPa | % | % | J | MPa | % | % | J | MPac | % | % | J | MPac | % | % | % | |||||||
| 25CrMo4 | 1.7218 | 700 | 900 to 1100 |
12 | 50 | - | 600 | 800 to 950 |
14 | 55 | 50 | 450 | 700 to 850 |
15 | 60 | 50 | 400 | 650 to 800 |
16 | 60 | 45 | - | - | - | - | - |
| 25CrMoS4 | 1.7213 | |||||||||||||||||||||||||
JOMINY HARDENABILITY (EN 10083-3)
| Steel | limits | HRC HARDNESS MEASURED FROM THE QUENCHED END OF THE TEST SAMPLE (MM) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| distance (mm) | ||||||||||||||||||
| DESIGNATION | Werk.nr. | 1,5 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | ||
| 25CrMo4 | 1.7218 | +H | max | 52 | 52 | 51 | 50 | 48 | 46 | 43 | 41 | 37 | 35 | 33 | 32 | 31 | 31 | 31 |
| 25CrMoS4 | 1.7213 | +H | min | 44 | 43 | 40 | 37 | 34 | 32 | 29 | 27 | 23 | 21 | 20 | - | - | - | - |
USUALLY AVAILABLE ON STOCK
| Coloration M.T. | Steel | HEAT TREATMENT | surface | Diamètre Ø (mm) |
|---|---|---|---|---|
 |
25CrMo4 | Quenched and tempered (+QT) | hot rolled | 160-300 |
 |
Download technical sheet |