Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
Uncompromising quality
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 |
 |
Download technical sheet |
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.
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.
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.