SCM415 Equivalent Material

SCM415 Equivalent Material

SCM415 is a low-alloy chromium-molybdenum steel defined under the Japanese Industrial Standard (JIS). It is widely used in applications that require high strength, good toughness, and resistance to wear and fatigue. The following table provides equivalent materials across various international 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

Carbon
0.38–0.43%
Manganese
0.75–1.00%
Phosphorus
≤0.035%
Sulfur
≤0.040%
Chromium
1.10%
Molybdenum
0.15–0.25%
Iron
97.25%

DIN 1.7262 is High Quality Quenched and Tempered Steel – View SCM415 Steel Mechanical Properties

DIN 1.7262 undergoes quenching and tempering, which significantly improves its mechanical properties, including hardness, ductility, and tensile strength. This makes it ideal for structural and mechanical applications where durability is key.

SCM415 Steel Mechanical Properties

Typical Steel Elastic Modulus Bulk Modulus Tensile Strength Yield Strength
GPa GPa Mpa Mpa
190–210 140 655 415

SCM415 Equivalent Materials

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 ℃ (1472–1562°F)

SCM415 Chromoly Processed Through Carburizing Hardening Treatment – Refer SCM415 Alloy Steel Hardening

Carburizing hardening enhances the surface hardness and wear resistance of SCM415, making it suitable for parts exposed to high stress or harsh environments. This treatment also improves fatigue strength and surface pressure resistance.

This process is especially useful in industries such as automotive, aerospace, and heavy machinery where component longevity and performance are critical.

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 pipelines. Proper forging temperature control is essential to achieve optimal mechanical properties and microstructure.

After forging, heat treatment is applied to enhance the material’s strength, ductility, and hardness, ensuring long-term performance under demanding conditions.

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 Melting Range of 1382 – 1529 °C – View SCM415 Alloy Steel Density

The melting range is important for controlling heat during manufacturing and assessing the material's performance at high temperatures. The density of 15CrMo is typically between 7.8 and 7.9 g/cm³, which is typical for low-alloy steels composed mainly of iron.

15CrMo Density

Density 7.8 – 7.9 g/cm³
X30WCRV93KU Grade Has High Rigidity – SCM415 Case Harden Steel Fatigue Strength

X30WCRV93KU offers high rigidity due to its molybdenum and chromium content, which increases tensile and yield strength. This makes it ideal for pressure vessels and high-stress applications. When SCM415 is case hardened, the surface becomes harder, improving fatigue resistance, but proper execution is crucial to maintain its integrity.

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, commonly used in oil quenching and surface hardening processes. Its combination of strength and toughness makes it ideal for industrial and mechanical applications.

15CrMo Criterion for Heat Treating Conditions

  • Ac: 770–835℃
  • Ar: 770–700℃
  • Ms: 410℃

SCM415 Alloy Steel Surface Finish

  • Black Surface
  • Grounded
  • Peeled / Turned
  • Polished

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