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ACI-ASTM CA6NM Steel vs. AWS E316

Both ACI-ASTM CA6NM steel and AWS E316 are iron alloys. They have 83% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is AWS E316.

ACI-ASTM CA6NM (J91540) Cast Stainless Steel AWS E316 (W31610) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		200

Elongation at Break, %		17
Elongation at Break, %		34

Poisson's Ratio		0.28
Poisson's Ratio		0.28

Shear Modulus, GPa		76
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		850
Tensile Strength: Ultimate (UTS), MPa		580

Thermal Properties

Latent Heat of Fusion, J/g		280
Latent Heat of Fusion, J/g		290

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1440

Melting Onset (Solidus), °C		1400
Melting Onset (Solidus), °C		1390

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		470

Thermal Conductivity, W/m-K		25
Thermal Conductivity, W/m-K		15

Thermal Expansion, µm/m-K		10
Thermal Expansion, µm/m-K		14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		2.8
Electrical Conductivity: Equal Volume, % IACS		2.3

Electrical Conductivity: Equal Weight (Specific), % IACS		3.2
Electrical Conductivity: Equal Weight (Specific), % IACS		2.6

Otherwise Unclassified Properties

Base Metal Price, % relative		10
Base Metal Price, % relative		20

Density, g/cm³		7.8
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		2.5
Embodied Carbon, kg CO₂/kg material		4.0

Embodied Energy, MJ/kg		34
Embodied Energy, MJ/kg		55

Embodied Water, L/kg		110
Embodied Water, L/kg		160

Common Calculations

PREN (Pitting Resistance)		15
PREN (Pitting Resistance)		27

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

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

Strength to Weight: Axial, points		30
Strength to Weight: Axial, points		20

Strength to Weight: Bending, points		26
Strength to Weight: Bending, points		20

Thermal Diffusivity, mm²/s		6.7
Thermal Diffusivity, mm²/s		4.0

Thermal Shock Resistance, points		31
Thermal Shock Resistance, points		15

Alloy Composition

Carbon (C), %		0 to 0.060
Carbon (C), %		0 to 0.080

Chromium (Cr), %		11.5 to 14
Chromium (Cr), %		17 to 20

Copper (Cu), %		0
Copper (Cu), %		0 to 0.75

Iron (Fe), %		78.4 to 84.6
Iron (Fe), %		58.6 to 69.5

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0.5 to 2.5

Molybdenum (Mo), %		0.4 to 1.0
Molybdenum (Mo), %		2.0 to 3.0

Nickel (Ni), %		3.5 to 4.5
Nickel (Ni), %		11 to 14

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

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

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