• Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

chiusura estiva dal 6 al 24 agosto compresi

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

 

 
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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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