Case Hardening steel alloyed
Steels with alloy elements, for surface hardening
Alloyed carburized steels contain some characterizing elements that confer different characteristics depending on the applications. After machining, carburizing and tempering, usually performed in oil, these steels have high surface hardness characteristics and notable core toughness.
The alloy elements (manganese, chromium, nickel, and molybdenum), added individually or in combination with each other, allow the types to be diversified to use the type best suited to specific needs.
The temperability increases with the increase of the alloy elements, and therefore it is possible to obtain core transformed structures into increasingly larger pieces. In particular, chromium tends to increase the core hardness, while the nickel improves toughness and resistance to impacts.
The complex of alloyed carburized steels available at Rodacciai allows a truly wide range of applications to be covered, for pieces with sizes from small to considerable.
Some of these steels are available in the leaded version, which facilitates machining by chip removal.
RANGE Case Hardening steel alloyed
-
Rodacciai Mark
RM16
RM16PbSteel name
16MnCr5 - Nr.1.7131
16MnCrS5 - Nr.1.7139Manganese and chromium steel suitable for small or medium-sized pieces.
-
Rodacciai Mark
RM20
Steel name
20MnCr5 - Nr.1.7147
20MnCrS5 - Nr.1.7149Manganese and chromium steel with a content of alloy elements slightly higher than the previous type, suitable for large pieces.
-
Rodacciai Mark
RN0
RN0PbSteel name
12NiCr3
Steel with a low chrome, nickel, and carbon content. Suitable for small pieces. It has a good cold deformability at the globular annealed state.
-
Rodacciai Mark
RN2
RN2PbSteel name
16NiCr4 - Nr.1.5714
16NiCrS4 - Nr.1.5715Steel with the addition of chromium and nickel in higher quantities than RN0. Used for pins and gears.
-
Rodacciai Mark
RN3
Steel name
20CrNi4
Steel with the addition of chromium and nickel in higher quantities than RN0 and RN2. Has a greater temperability, with higher surface and core characteristics.
-
Rodacciai Mark
RG2
Steel name
16NiCr11
Steel that originated in the automobile industry, no longer present in the international standards. Thanks to its high nickel content, it is used for pieces that are particularly subject to fatigue and vibrations.
-
Rodacciai Mark
RC0
Steel name
20NiCrMo2-2 - Nr.1.6523
20NiCrMoS2-2 - Nr.1.6526Steel with chromium, nickel, and molybdenum, suitable for pieces of a complex shape with good core tenacity.
-
Rodacciai Mark
RC2
RC2PbSteel name
17NiCrMo6-4 - Nr.1.6566
17NiCrMoS6-4 - Nr.1.6569*Alloy steel with chromium, nickel, and molybdenum. This is a carburized steel with excellent temperability that is often used to obtain pieces with high requirements and complex shapes such as gears and large shafts subject to fatigue and vibrations.
