Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
39NiCrMo3 (EN 10083-3)
PROPERTIES AND EMPLOYEMENTS
IT IS THE MOST WIDESPREAD QUENCHED AND TEMPERED STEEL IN ITALY.
IT HAS A GOOD HARDENABILITY, HIGH TOUGHNESS, EXCELLENT WARM AND COLD DEFORMABILITY. IT REACHES A HIGH RESISTANCE EVEN IN RELATIVE BIG SECTIONS.
IT IS DISCREETLY MACHINABLE WITH MACHINE TOOLS AND IT IS SUITABLE FOR SURFACE HARDENING., WHICH CONFERS IT HARDNESS OF 53÷58 HRC.
IT CAN NITRITED TO INCREASE THE FATIGUE LIMIT, EVEN THOUGH SURFACE HARDNESS DOESN'T EXCEED 600 HV1. IT CAN BE EASILY HARDENED IN OIL OR IN SOLUTIONS OF SYNTHETIC POLYMERS, WITHOUT PARTICULAR RISKS OF BREAKAGE AND/OR DEFORMATIONS.
IT IS MAINLY EMPLOYED FOR GEARS, SHAFTS, AXLES AND FOR ALL THOSE MECHANICAL PARTS DYNAMICALLY STRESSED.
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | W.n. | AFNOR | UNE | B.S. | AISI/SAE | |
| 39NiCrMo3 | 39NiCrMo3 | 36NiCrMo4 | 1,6511 | F1280 | 817M37 | ||
CHEMICAL COMPOSITION % (EN 10083-3)
| STEEL DESIGNATION | CHEMICAL COMPOSITION | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | C |
Si max |
Mn |
P max |
S max |
Cr | Mo | Ni | V |
| 39NiCrMo3 | 1,6510 | 0,35 ÷ 0,43 | 0,40 | 0,50 ÷ 0,80 | 0,025 | 0,035 | 0,60 ÷ 1,00 | 0,15 ÷ 0,25 | 0,70 ÷ 1,00 | - |
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 |
| N/mm2 | % | % | J | N/mm2 | % | % | J | N/mm2 | % | % | J | N/mm2 | % | % | J | N/mm2 | % | % | J | |||||||
| 39NiCrMo3 | 1,6510 | 785 |
980 to 1180 |
11 | 40 | - | 735 |
930 to 1130 |
11 | 40 | 35 | 685 |
880 to 1080 |
12 | 45 | 40 | 635 |
830 to 980 |
12 | 50 | 40 | 540 |
740 to 880 |
13 | 50 | 40 |
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 | ||
| 39NiCrMo3 | 1,6510 | +HH | max | 60 | 60 | 59 | 58 | 58 | 57 | 57 | 56 | 55 | 52 | 51 | 49 | 48 | 46 | 45 |
| min | 55 | 54 | 53 | 52 | 51 | 50 | 48 | 47 | 44 | 41 | 40 | 38 | 37 | 36 | 35 | |||
USUALLY AVAILABLE EX STOCK
| M.T. COLORATION | QUALITY | HEAT TREATMENT | SURFACE | DIAMETER (mm) |
|---|---|---|---|---|
 |
39CrNiMo3 | Quenched and tempered |
rolled reeled forged turned peeled h11 / drawn / ground |
20-330 340-1000 8-160 |
 |
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.