• Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

  • Uncompromising quality

chiusura estiva dal 6 al 24 agosto compresi

41CrAlMo7 (UNI 8077)

 

PROPERTIES AND EMPLOYEMENTS
41CrAlMo7-10 HAS AN ELEVATED HARDENABILITY AND A HIGH CARBON CONTENT THAT MAKE IT SUITABLE FOR THE CONSTRUCTION OF BIG PARTS, WHICH ARE SUBMITTED TO ELEVATED PULSING AND DYNAMIC STRESSES. ALUMINIUM CONFERS IT AN ELEVATED HARDNESS AT THE NITRITED STATE, EVEN IF IT REDUCES THE STEEL'S TOUGHNESS. THIS STEEL HAS A MORE DIFFICULT MACHINABILITY THAT CAN BE IMPROVED BY TAKING CARE OF THE INCLUSIVE RATE AND THE MICRO-STRUCTURE OF STEEL.

 

 

CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS

QUALITY EUROPE GERMANY FRANCE SPAIN G.B. USA
EN DIN W.n. AFNOR UNE B.S. AISI/SAE
41CrAlMo7 41CrAlMo7 41CrAlMo7 1,8509 40CAD6.12 F1740 905M39  

CHEMICAL COMPOSITION % (UNI 8077)

STEEL DESIGNATION CHEMICAL COMPOSITION
SYMBOLIC NUMERIC C Si
max
Mn P
max
Sb
max
Al Cr Mo Ni V
41CrAlMo7-10 1,8509 0,38 ÷ 0,45 0,40 0,40 ÷ 0,70 0,025 0,035 0,80 ÷ 1,20 1,50 ÷ 1,80 0,20 ÷ 0,35 - -

CONCENTRATION LIMITS OF THE ELEMENTS THAT ARE NOT INDICATED IN THE TABLE CAN BE DEDUCED IN THE EN 10020 REGULATION.

MECHANICAL CHARACTERISTICS (UNI 8077)

STEEL 16mm < d ≤ 40mm 40mm < d ≤ 100mm 100mm < d ≤ 160mm 160mm < d ≤ 250mm HV1b
SYMBOLIC NUMERIC Re min Rm A min KV min Re min Rm A min KV min Re min Rm A min KV min Re min Rm A min KV min
N/mm2 % J N/mm2 % J N/mm2 % J N/mm2 % J
41CrAlMo7-10 1,8509 750 950 to
1150
11 25 720 900 to
1100
13 25 670 850 to
1050
14 30 625 800 to
1000
15 30 950

JOMINY HARDENABILITY (UNI 8077)

STEEL DESIGNATION 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
41CrAlMo7-10 1,8509 max 60 60 59,5 59,5 59 59 58,5 58 57 56,5 55 53 51
min 53 52 51 50 49 48 47,5 47 44,5 41 39,5 37,5 36

USUALLY AVAILABLE EX STOCK

M.T. COLORATION QUALITY HEAT TREATMENT SURFACE DIAMETER(mm)
41CrAlMo7-10 Quenched and tempered
Quenched and tempered stabilised
rolled peeled
forged turned
20-300
300-520

 

 
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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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