Grade N7M Nickel vs. ASTM A369 Grade FP9

Grade N7M nickel belongs to the nickel alloys classification, while ASTM A369 grade FP9 belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade N7M nickel and the bottom bar is ASTM A369 grade FP9.

Grade N7M (J30007) Cast Nickel ASTM A369 Grade FP9 Cr-Mo Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		220
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		22
Elongation at Break, %		20

Fatigue Strength, MPa		190
Fatigue Strength, MPa		160

Poisson's Ratio		0.31
Poisson's Ratio		0.28

Shear Modulus, GPa		85
Shear Modulus, GPa		75

Tensile Strength: Ultimate (UTS), MPa		590
Tensile Strength: Ultimate (UTS), MPa		470

Tensile Strength: Yield (Proof), MPa		310
Tensile Strength: Yield (Proof), MPa		240

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		270

Maximum Temperature: Mechanical, °C		900
Maximum Temperature: Mechanical, °C		600

Melting Completion (Liquidus), °C		1650
Melting Completion (Liquidus), °C		1450

Melting Onset (Solidus), °C		1590
Melting Onset (Solidus), °C		1410

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		9.9
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Base Metal Price, % relative		75
Base Metal Price, % relative		6.5

Density, g/cm³		9.3
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		16
Embodied Carbon, kg CO₂/kg material		2.0

Embodied Energy, MJ/kg		200
Embodied Energy, MJ/kg		28

Embodied Water, L/kg		270
Embodied Water, L/kg		87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		110
Resilience: Ultimate (Unit Rupture Work), MJ/m³		80

Resilience: Unit (Modulus of Resilience), kJ/m³		220
Resilience: Unit (Modulus of Resilience), kJ/m³		140

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		22
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		19
Thermal Shock Resistance, points		13

Alloy Composition

Carbon (C), %		0 to 0.070
Carbon (C), %		0 to 0.15

Chromium (Cr), %		0 to 1.0
Chromium (Cr), %		8.0 to 10

Iron (Fe), %		0 to 3.0
Iron (Fe), %		87.1 to 90.3

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0.3 to 0.6

Molybdenum (Mo), %		30 to 33
Molybdenum (Mo), %		0.9 to 1.1

Nickel (Ni), %		60.9 to 70
Nickel (Ni), %		0

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0.5 to 1.0

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.030