MIL 9Ni-4Co-0.3C Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: United States / MIL

Data updates

Latest Update: 2014-10
Total number of updates: 1
Update History

This material has 5 properties — only a subset is shown here.

Unlock full material properties, including detailed values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

MIL 9Ni-4Co-0.3C Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
Unlock full details
Full data available with free access View Complete Material Data
Density
7.67 — 7.86 kg/dm³
Unlock full details
Full data available with free access View Complete Material Data
Poisson Coefficient
0.27 — 0.3
Unlock full details
Full data available with free access View Complete Material Data

This material has 5 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

MIL 9Ni-4Co-0.3C Heat Treatments

  • Normalizing temperature range 1625-1675°F, air quenched; Annealing temperature range 1250-1150°F. Duplex annealed - hold 4 hrs. +/-0.25 hrs. at 1250°F +/-25°F, air cool to room temperature, then reheat to 1150+/-25°F and hold for 8 hrs. +/- 0.25hrs and air cool to room temperature. (Recommended subcritical anneal temperature is 1250°F); Austenitizing temperature range 1475-1525°F; Medium for quenching: oil. Cool to -100°F for 1 hour minimum within 2 hours after quenching and before tempering.

MIL 9Ni-4Co-0.3C Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
1516 — 1655 MPa
Unlock full details
Full data available with free access View Complete Material Data

Need complete mechanical properties to make the right choice?

Get complete data on strength, hardness, fatigue, and more.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

Optimize material selection for your application - Book A Demo

  • -Cross References
  • -Composition
  • 1Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers