EN 1.7220 Steel vs. AWS ENiCrCoMo-1

EN 1.7220 steel belongs to the iron alloys classification, while AWS ENiCrCoMo-1 belongs to the nickel alloys. There are 19 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 EN 1.7220 steel and the bottom bar is AWS ENiCrCoMo-1.

EN 1.7220 (34CrMo4) Chromium-Molybdenum Steel AWS ENiCrCoMo-1 (W86117) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		73
Shear Modulus, GPa		82

Tensile Strength: Ultimate (UTS), MPa		520 to 1720
Tensile Strength: Ultimate (UTS), MPa		710

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		330

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		1430

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		1380

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		440

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

Otherwise Unclassified Properties

Base Metal Price, % relative		2.5
Base Metal Price, % relative		75

Density, g/cm³		7.8
Density, g/cm³		8.5

Embodied Carbon, kg CO₂/kg material		1.5
Embodied Carbon, kg CO₂/kg material		11

Embodied Energy, MJ/kg		20
Embodied Energy, MJ/kg		140

Embodied Water, L/kg		51
Embodied Water, L/kg		340

Common Calculations

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

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		18 to 61
Strength to Weight: Axial, points		23

Strength to Weight: Bending, points		18 to 41
Strength to Weight: Bending, points		21

Thermal Shock Resistance, points		15 to 50
Thermal Shock Resistance, points		19

Alloy Composition

Carbon (C), %		0.3 to 0.37
Carbon (C), %		0.050 to 0.15

Chromium (Cr), %		0.9 to 1.2
Chromium (Cr), %		21 to 26

Cobalt (Co), %		0
Cobalt (Co), %		9.0 to 15

Copper (Cu), %		0
Copper (Cu), %		0 to 0.5

Iron (Fe), %		96.8 to 98.1
Iron (Fe), %		0 to 5.0

Manganese (Mn), %		0.6 to 0.9
Manganese (Mn), %		0.3 to 2.5

Molybdenum (Mo), %		0.15 to 0.3
Molybdenum (Mo), %		8.0 to 10

Nickel (Ni), %		0
Nickel (Ni), %		38.6 to 61.7

Niobium (Nb), %		0
Niobium (Nb), %		0 to 1.0

Phosphorus (P), %		0 to 0.035
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 0.4
Silicon (Si), %		0 to 0.75

Sulfur (S), %		0 to 0.035
Sulfur (S), %		0 to 0.015

Residuals, %		0
Residuals, %		0 to 0.5