AWS E383 vs. SAE-AISI S7 Steel

Both AWS E383 and SAE-AISI S7 steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 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 AWS E383 and the bottom bar is SAE-AISI S7 steel.

AWS E383 (W88028) Weld Metal SAE-AISI S7 (T41907) Shock-Resisting Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		210
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		80
Shear Modulus, GPa		74

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		670 to 2030

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		1420
Melting Completion (Liquidus), °C		1460

Melting Onset (Solidus), °C		1370
Melting Onset (Solidus), °C		1420

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

Thermal Conductivity, W/m-K		12
Thermal Conductivity, W/m-K		40

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		37
Base Metal Price, % relative		5.0

Density, g/cm³		8.1
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		6.4
Embodied Carbon, kg CO₂/kg material		2.3

Embodied Energy, MJ/kg		89
Embodied Energy, MJ/kg		31

Embodied Water, L/kg		240
Embodied Water, L/kg		65

Common Calculations

PREN (Pitting Resistance)		40
PREN (Pitting Resistance)		8.4

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

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		20
Strength to Weight: Axial, points		24 to 72

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		22 to 46

Thermal Diffusivity, mm²/s		3.1
Thermal Diffusivity, mm²/s		11

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		22 to 66

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0.45 to 0.55

Chromium (Cr), %		26.5 to 29
Chromium (Cr), %		3.0 to 3.5

Copper (Cu), %		0.6 to 1.5
Copper (Cu), %		0 to 0.25

Iron (Fe), %		28.8 to 39.2
Iron (Fe), %		91.6 to 94.9

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		0.2 to 0.9

Molybdenum (Mo), %		3.2 to 4.2
Molybdenum (Mo), %		1.3 to 1.8

Nickel (Ni), %		30 to 33
Nickel (Ni), %		0

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 0.9
Silicon (Si), %		0.2 to 1.0

Sulfur (S), %		0 to 0.020
Sulfur (S), %		0 to 0.030

Vanadium (V), %		0
Vanadium (V), %		0 to 0.3