home Manufacturing Technology Manufacturing Equipment
Industrial manufacturing
Industrial Internet of Things | Industrial materials | Equipment Maintenance and Repair | Industrial programming |
home  MfgRobots >> Industrial manufacturing >  >> Industrial materials >> Metal

EN 10269 Grade 30CrNiMo8 Soft-Annealed Steel (+A) – Ideal for High‑Stress, Low‑Temperature Applications

Steel 30CrNiMo8 is suitable for high-stress components (also large forged parts) with high heat-treatment cross-sections and good toughness properties in aircraft, heavy vehicle and machine construction (e.g. propeller shafts, connecting rods, gearbox shafts). Furthermore for large forged parts (e.g. rotors, shafts, discs). Lowest working temperature -40 °C Further application for mounting elements at lower temperatures.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.8 - 7.85 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 GPa

100.0 °C

205 - 207 GPa

200.0 °C

195 - 199 GPa

300.0 °C

185 - 192 GPa

400.0 °C

184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Hardness, Brinell

20.0 °C

255 [-]

Poisson's ratio

23.0 °C

0.29 [-]

Typical for Nickel Chromium Molybdenum Steel

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.05E-5 1/K

20.0 °C

1.15E-5 1/K

100.0 °C

1.11E-5 - 1.21E-5 1/K

200.0 °C

1.21E-5 - 1.27E-5 1/K

300.0 °C

1.29E-5 - 1.32E-5 1/K

400.0 °C

1.35E-5 - 1.36E-5 1/K

500.0 °C

1.4E-5 1/K

600.0 °C

1.44E-5 1/K

Max service temperature, long

-40 - 0 °C

Melting point

1382 - 1529 °C

Typical for Nickel Chromium Molybdenum Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

461 J/(kg·K)

100.0 °C

479 J/(kg·K)

200.0 °C

499 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

536 J/(kg·K)

500.0 °C

558 J/(kg·K)

600.0 °C

587 J/(kg·K)

Thermal conductivity

20.0 °C

33.7 W/(m·K)

100.0 °C

36.2 - 50.3 W/(m·K)

200.0 °C

37.8 - 49 W/(m·K)

300.0 °C

37.2 - 47.8 W/(m·K)

400.0 °C

35.7 W/(m·K)

500.0 °C

34 W/(m·K)

600.0 °C

32 W/(m·K)

Thermal diffusivity

20.0 °C

9.4 mm²/s

100.0 °C

9.4 mm²/s

200.0 °C

9.2 mm²/s

300.0 °C

8.5 mm²/s

400.0 °C

7.6 mm²/s

500.0 °C

6.6 mm²/s

600.0 °C

5.4 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

3.09E-7 Ω·m

100.0 °C

3.54E-7 Ω·m

200.0 °C

4.18E-7 Ω·m

300.0 °C

5.05E-7 Ω·m

400.0 °C

6.09E-7 Ω·m

500.0 °C

7.27E-7 Ω·m

600.0 °C

8.67E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.26 - 0.34 %

Chromium

1.8 - 2.2 %

Manganese

0.3 - 0.6 %

Molybdenum

0.3 - 0.5 %

Nickel

1.8 - 2.2 %

Phosphorus

0.03 - 0.04 %

Silicon

0.4 %

Sulfur

0.035 %


Metal

  • Metal
  • Resin
  • fiber
  • Composite material
  • Nanomaterials
  • Polymer Materials
  • Biologics
  • Dye
  • Spices
    1. EN 10088-1 X70CrMo15: Soft Annealed Grade for Cutting Tools & Industrial Applications
    2. X105CrMo17 Soft Annealed Steel (EN 10088-1) – High Hardening & Wear Resistance
    3. EN 10083-2 Grade C50R Soft Annealed Steel (+A) – High Strength & Workability
    4. EN 10083-2 Grade C55R Soft Annealed Steel – Enhanced Workability for Automotive and Engineering Applications
    5. EN 10269 Grade 40CrMoV4-6 Soft-Annealed Steel – Ideal for High‑Temperature Fasteners
    6. EN 10269 Grade 42CrMo4 Soft-Annealed Steel – High Strength & Wear Resistance
    7. EN 10269 25CrMo4 Soft-Annealed Steel – High Strength & Toughness for Automotive & Industrial Applications
    8. EN 10269 Grade 34CrNiMo6 Soft-Annealed Steel – High-Performance Alloy for Heavy-Duty Applications
    9. EN 10088-1 Grade X90CrMoV18 – Soft Annealed Steel for High‑Performance Cutting Tools
    10. EN 10269 X19CrMoNbVN11-1 Soft-Annealed Steel – High‑Temperature Resistance up to 580 °C