Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
25CrMo4 (EN 10083-3)
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.
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | W.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 | NUMERIC | 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 | NUMERIC | 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 DESIGNATION | SYMBOL | RANGE LIMITS | HRC HARDNESS MEASURED FROM THE QUENCHED END OF THE TEST TUBE (MM) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | 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 EX STOCK
| M.T. COLORATION | QUALITY | HEAT TREATMENT | SURFACE | DIAMETER(mm) |
|---|---|---|---|---|
 |
25CrMo4 | Quenched and tempered | rolled | 160-300 |
 |
Download technical sheet |
Steels
Our steel always comes from the same European steelworks, which guarantee a continuity for what concerns quality. The constant quality of the supplies allows to have repetitive parameters in mechanical processing and a greater control over deformations during heat treatment.
Machining
Precise cuttings of small and big series are guaranteed by the employement of latest generation automatic saws that were projected and realized in order to guarantee precision standards required by customers, reducing processing wastage.
Quality
The certification and introduction of the Quality System management allowed M.T.Acciai to improve not only its efficiency, but also the quality that is offered, in order to better meet our customers’ needs.