• Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

chiusura estiva dal 6 al 24 agosto compresi

40NiCrMo7 (L43~)

 

CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS

QUALITY EUROPE GERMANY FRANCE SPAIN G.B. USA
EN DIN W.n. AFNOR UNE B.S. AISI/SAE
40NiCrMo7 S355J2G3~ St52.3~       EN50D LF2

CHEMICAL COMPOSITION (UNI 7845)

STEEL DESIGNATION CHEMICAL COMPOSITION
SYMBOLIC NUMERIC C Mn Si P
max
S
max
Cr Mo Ni
40NiCrMo7 1.6562 0,38 ÷ 0,43 0,60 ÷ 0,85 0,15 ÷ 0,35 0,035 0,040 0,70 ÷ 0,90 0,30 ÷ 0,30 1,65 ÷ 2,00

MECHANICAL CHARACTERISTICS (UNI 7845)

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 Re min Rm A min Z min Re min Rm A min Z min Re min Rm A min Z min Re min Rm A min Z min
N/mm2 % % N/mm2 % % N/mm2 % % N/mm2 % % N/mm2 % %
40NiCrMo7 1.6562 835 1030 ÷
1230
11 30 785 980 ÷ 1180 11 30 735 930 ÷ 1130 12 30 665 850 ÷ 1030 13 30 635 780 ÷ 980 13 30

JOMINY HARDENABILITY (UNI 7845)

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 1.6562 +H max 60 60 60 60 60 60 60 60 59 58 58 58 57 56 56
min 52 52 52 52 52 52 52 52 51 50 49 48 47 45 44

 

 
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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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