• Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

chiusura estiva dal 6 al 24 agosto compresi

30CrNiMo8 (EN 10083-3)

 

PROPERTIES AND EMPLOYEMENTS
IT IS A QUENCHED AND TEMPERED STEEL (IDENTICAL TO 30CrNiMo8 REF. UNI 7845 / UNI 7847) WITH HIGH HARDENABILITY AND TOUGHNESS.
IT HAS A GOOD COLD AND WARM MACHINABILITY. IT CAN BE QUENCHED AND TEMPERED WITH HIGH VALUES OF RESISTANCE AND TOUGHNESS ON BIG SECTIONS WHERE IT IS REQUIRED A REMARKABLE HARDNESS UNIFORMITY.
IT CAN BE NITRITED TO IMPROVE ITS RESISTANCE AND FATIGUE STRENGTH.
IT IS COMMONLY USED FOR THE REALIZATION OF PINIONS AND TURBINE SHAFTS.

 

CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS

QUALITY EUROPE GERMANY FRANCE SPAIN G.B. USA
EN DIN W.n. AFNOR UNE B.S. AISI/SAE
30CrNiMo8 30CrNiMo8 30CrNiMo8 1,6580     822M30  

CHEMICAL COMPOSITION % (EN 10083-3)

STEEL DESIGNATION CHEMICAL COMPOSITION
SYMBOLIC NUMERIC C Si
max
Mn P
max
S
max
Cr Mo Ni V
30CrNiMo8 1,6580 0,26 ÷ 0,34 0,40 0,50 ÷ 0,80 0,025 0,035 1,80 ÷ 2,20 0,30 ÷ 0,50 1,80 ÷ 2,20 -

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
30CrNiMo8 1,6580 1050 1250 to
1450
9 40 - 1050 1250 to
1450
9 40 30 900 1000 to
1300
10 45 35 800 1000 to
1200
11 50 45 700 900 to
1100
12 50 45

 

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
30CrNiMo8 1,6580 +H max 56 56 56 56 55 55 55 55 55 54 54 54 54 54 54
min 48 48 48 48 47 47 47 46 46 45 45 44 44 43 43

USUALLY AVAILABLE EX STOCK

M.T. COLORATION QUALITY HEAT TREATMENT SURFACE DIAMETER (mm)
30CrNiMo8 Quenched and tempered
Quenched and tempered stress relieved
rolled reeled 80-200

 

 
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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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