• Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

chiusura estiva dal 6 al 24 agosto compresi

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

 

 
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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.

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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.

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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.

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