52SiCrNi5 (1.7117)
EN 10089
Annealed (+A) / Spheroidal Annealed (+AC)
PROPRERTIES AND APPLICATIONS
This type of steel has a very low density and melting point and is used in small and medium-sized statically loaded springs. A distinctive advantage of this grade is its ability to deliver improved performance compared to common alternatives such as 51CrV4 (1.8159) steel.
This steel is specifically employed in the production of small and medium-sized springs subjected to static loads. Its formulation makes it particularly suitable for hot-formed springs intended to withstand high stresses in vehicle engineering.
A high yield strength allows the material to withstand considerable loads before undergoing permanent deformation, maintaining its shape and functionality under operational stress.
Typical applications include:
- Turbine fasteners: Components that require high fatigue resistance and stability under dynamic loads and elevated temperatures.
- Connecting rods: Critical engine parts that endure significant cyclic compressive and tensile forces.
- Bolts and nuts: Used in assemblies that require high mechanical strength and the ability to maintain clamping force under stress.
- Gear shafts: Components subject to torsion and bending, where wear resistance and toughness are essential.
Additionally, 52SiCrNi5 (1.7117) steel is widely used in the automotive and railway industries for the production of coil springs and torsion/stabilizer bars. These steel grades must possess high yield strength and toughness after quenching and tempering in order to withstand stress under flexural-torsional loads.
CORRESPONDENCE TO INTERNATIONAL DESIGNATIONS
| QUALITY | EUROPE | GERMANY | FRANCE | SPAIN | G.B. | USA | |
|---|---|---|---|---|---|---|---|
| EN | DIN | W.n. | AFNOR | UNE | B.S. | AISI/SAE | |
| 52SiCrNi5 | 52SiCrNi5 | 52SiCrNi5 | 1.7117 | ~5160 | |||
CHEMICAL COMPOSITION % (UNI 3545)
| STEEL DESIGNATION | CHEMICAL COMPOSITION | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| SYMBOLIC | NUMERIC | C | Si | Mn | P max | S max | Cr | Mo | Ni | V |
| 52SiCrNi5 | 1.7117 | 0,49 ÷ 0,56 | 1,20 ÷ 1,50 | 0,70 ÷ 0,90 | 0,035 | 0,035 | 0,70 ÷ 1,00 | - | 0,50 ÷ 0,70 | - |
MECHANICAL CHARACTERISTICS (UNI 3545)
| STEEL | 10mm | |||
| SYMBOLIC | NUMERIC | Re min | Rm | A min |
| N/mm2 | % | |||
| 52SiCrNi5 | 1.7117 | 1220 | 1400 to 1650 | 5 |
JOMINY HARDENABILITY (EN 10089:2022)
|
steel |
range limits |
HRC HARDNESS MEASURED FROM THE QUENCHED END OF THE TEST TUBE (MM) |
|||||||||||||||
|
designation |
Werk.no. |
1,5 |
3 |
5 |
7 |
9 |
11 |
13 |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
|
|
52SiCrNi5 +H |
1.7117 +H |
max |
63 |
63 |
63 |
62 |
62 |
62 |
61 |
61 |
60 |
59 |
57 |
56 |
54 |
52 |
49 |
|
min |
58 |
58 |
58 |
57 |
57 |
56 |
55 |
54 |
51 |
48 |
44 |
42 |
40 |
38 |
36 |
||
|
52SiCrNi5 +HH |
1.7117 +HH |
max |
63 |
63 |
63 |
62 |
62 |
62 |
61 |
61 |
60 |
59 |
57 |
56 |
54 |
52 |
49 |
|
min |
56 |
56 |
55 |
55 |
54 |
53 |
52 |
51 |
47 |
42 |
38 |
35 |
33 |
31 |
30 |
||
USUALLY AVAILABLE ON STOCK
| M.T. COLORATION | QUALITY | HEAT TREATMENT | SURFACE | DIAMETER (mm) |
|---|---|---|---|---|
 |
52SiCrNi5 | Spheroidal annealed (+AC) | hot rolled | 20-200 |