SCM415 is a low-alloy chromium-molybdenum steel defined by the Japanese Industrial Standard (JIS). It is commonly used in applications that require high strength, toughness, and resistance to wear. The following table provides equivalent materials across different standards and regions.
Table of contents
- SCM415 Chromoly Chemical Composition
- SCM415 Steel Mechanical Properties
- SCM415 Equivalent Materials
- Steel SCM415 Physical Properties
- SCM415 Alloy Steel Annealing
- Acero SCM415 Hardening
- SCM415 Case Harden Steel Tempering
- Forging of X30WCRV93KU Grade
- JIS G4105 Grade SCM415 Thermal Properties
- SCM415 Material Hardness
- 15CrMo Density
- DIN 1.7262 Fatigue Strength
- What is SCM415 Steel?
- 15CrMo Criterion for Heat Treating Conditions
- SCM415 Alloy Steel Surface Finish
SCM415 Chemical Composition
DIN 1.7262 is High Quality Quenched and Tempered Steel – View SCM415 Steel Mechanical Properties
DIN 1.7262 undergoes a heat treatment process involving quenching and tempering, which enhances its mechanical properties such as hardness, ductility, and strength. This makes it ideal for use in demanding engineering applications.
SCM415 Steel Mechanical Properties
| Typical Elastic Modulus | Bulk Modulus | Tensile Strength | Yield Strength |
|---|---|---|---|
| GPa | GPa | MPa | MPa |
| 190–210 | 140 | 655 | 415 |
SCM415 Equivalent Material
| Japan | China | France | Italy | Germany | England |
|---|---|---|---|---|---|
| JIS | GB | AFNOR | UNI | DIN, WNr | BS |
| SCM415 | 15CrMo | 15CD4.05 | X30WCRV93KU | 15CrMo | 1.7262 | 1501-620 | Cr31 |
Steel SCM415 Physical Properties
| Specific Heat (J/kgK) | Temperature (°C/F) | Thermal Conductivity (W/mK) | Modulus of Elasticity (kN/mm²) |
|---|---|---|---|
| 43 | 44 | 14 | 321 |
SCM415 Alloy Steel Annealing
| Annealing Temperature | 800–850°C (1472–1562°F) |
|---|
SCM415 Chromoly Undergoes Carburizing Hardening Treatment – Refer to SCM415 Alloy Steel Hardening
Carburizing hardening improves the wear resistance and fatigue strength of SCM415 by creating a tough, high-carbon surface layer. This process also increases the material's ability to withstand surface pressure and maintain performance under harsh conditions.
Acero SCM415 Hardening
| Hardening | 840–875°C (1544–1607°F) |
|---|
SCM415 Case Harden Steel Tempering
| Tempering Temperature | 500–700°C (932–1292°F) |
|---|
15CrMo Steel Has Yield Strength of 415 MPa – Check Forging Temperature of Acero SCM415
The yield strength of 15CrMo is 415 MPa, making it suitable for use in boilers, pressure vessels, and high-pressure piping systems. Controlling the forging temperature is crucial to achieving optimal mechanical properties and microstructure.
Forging of X30WCRV93KU Grade
| Forging Temperature | 840–875°C (1544–1607°F) |
|---|
JIS G4105 Grade SCM415 Thermal Properties
| Thermal Conductivity (@ 100°C) | 296 BTU in/hr.ft².°F | 42.6 W/mK |
|---|---|---|
| Thermal Expansion Coefficient (@ 0–100°C/32–212°F) | 6.78 µin/in°F | 12.2 µm/m°C |
SCM415 Material Hardness
| Hardness | 28–34 HRc |
|---|
JIS G4105 Grade SCM415 Has a Melting Range of 1382–1529°C – View SCM415 Alloy Steel Density
The melting range is important for ensuring proper heat control during manufacturing and for confirming structural durability at high temperatures. The density of 15CrMo typically ranges between 7.8–7.9 g/cm³, which is common for low-alloy steels primarily composed of iron.
15CrMo Density
| Density | 7.8–7.9 g/cm³ |
|---|
X30WCRV93KU Grade Has High Rigidity – SCM415 Case Harden Steel Fatigue Strength
The high rigidity of X30WCRV93KU allows it to withstand heavy loads without deforming. Its composition, including molybdenum and chromium, enhances tensile and yield strength, making it ideal for pressure vessels and high-pressure applications.
When SCM415 is case hardened, the surface becomes harder, improving fatigue resistance. However, it is essential to perform this process correctly to avoid any negative effects on the material’s properties. Proper execution ensures optimal performance and longevity.
DIN 1.7262 Fatigue Strength
| Fatigue Strength | 275 MPa |
|---|
What is SCM415 Steel?
SCM415 is a high-quality quenched and tempered alloy structural steel. It belongs to the category of medium carbon steels that are oil-quenched and surface-hardened. It is widely used in industrial and mechanical applications where high strength and durability are required.
15CrMo Criterion for Heat Treating Conditions
- Ac: 770–835°C
- Ar: 770–700°C
- Ms: 410°C
SCM415 Alloy Steel Surface Finish
- Black Surface
- Grounded
- Peeled / Turned
- Polished
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