SAE-AISI D7 Steel vs. AWS E312

Both SAE-AISI D7 steel and AWS E312 are iron alloys. They have 72% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D7 steel and the bottom bar is AWS E312.

SAE-AISI D7 (T30407) Chromium Cold-Work Steel AWS E312 (W31310) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.28
Poisson's Ratio		0.27

Shear Modulus, GPa		73
Shear Modulus, GPa		80

Tensile Strength: Ultimate (UTS), MPa		800 to 2120
Tensile Strength: Ultimate (UTS), MPa		740

Thermal Properties

Latent Heat of Fusion, J/g		270
Latent Heat of Fusion, J/g		310

Melting Completion (Liquidus), °C		1440
Melting Completion (Liquidus), °C		1410

Melting Onset (Solidus), °C		1400
Melting Onset (Solidus), °C		1360

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

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		15

Otherwise Unclassified Properties

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

Density, g/cm³		7.6
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		11
Embodied Carbon, kg CO₂/kg material		3.6

Embodied Energy, MJ/kg		180
Embodied Energy, MJ/kg		52

Embodied Water, L/kg		130
Embodied Water, L/kg		200

Common Calculations

PREN (Pitting Resistance)		16
PREN (Pitting Resistance)		31

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		15

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

Strength to Weight: Axial, points		29 to 78
Strength to Weight: Axial, points		27

Strength to Weight: Bending, points		25 to 48
Strength to Weight: Bending, points		24

Thermal Shock Resistance, points		27 to 72
Thermal Shock Resistance, points		18

Alloy Composition

Carbon (C), %		2.2 to 2.5
Carbon (C), %		0 to 0.15

Chromium (Cr), %		11.5 to 13.5
Chromium (Cr), %		28 to 32

Copper (Cu), %		0 to 0.25
Copper (Cu), %		0 to 0.75

Iron (Fe), %		76.6 to 81.9
Iron (Fe), %		52.3 to 63.5

Manganese (Mn), %		0 to 0.6
Manganese (Mn), %		0.5 to 2.5

Molybdenum (Mo), %		0.7 to 1.2
Molybdenum (Mo), %		0 to 0.75

Nickel (Ni), %		0 to 0.3
Nickel (Ni), %		8.0 to 10.5

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

Silicon (Si), %		0 to 0.6
Silicon (Si), %		0 to 1.0

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

Vanadium (V), %		3.8 to 4.4
Vanadium (V), %		0