ASTM Grade HN Steel vs. AWS E330

Both ASTM grade HN steel and AWS E330 are iron alloys. They have 89% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is AWS E330.

ASTM Grade HN (20Cr-25Ni, J94213) Cast Stainless Steel AWS E330 (W88331) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		9.0
Elongation at Break, %		29

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		77
Shear Modulus, GPa		76

Tensile Strength: Ultimate (UTS), MPa		500
Tensile Strength: Ultimate (UTS), MPa		580

Thermal Properties

Latent Heat of Fusion, J/g		310
Latent Heat of Fusion, J/g		300

Melting Completion (Liquidus), °C		1400
Melting Completion (Liquidus), °C		1400

Melting Onset (Solidus), °C		1350
Melting Onset (Solidus), °C		1350

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

Thermal Conductivity, W/m-K		13
Thermal Conductivity, W/m-K		12

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Base Metal Price, % relative		26
Base Metal Price, % relative		31

Density, g/cm³		7.9
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		4.6
Embodied Carbon, kg CO₂/kg material		5.4

Embodied Energy, MJ/kg		66
Embodied Energy, MJ/kg		75

Embodied Water, L/kg		180
Embodied Water, L/kg		180

Common Calculations

PREN (Pitting Resistance)		22
PREN (Pitting Resistance)		17

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

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

Strength to Weight: Axial, points		17
Strength to Weight: Axial, points		20

Strength to Weight: Bending, points		18
Strength to Weight: Bending, points		19

Thermal Diffusivity, mm²/s		3.5
Thermal Diffusivity, mm²/s		3.2

Thermal Shock Resistance, points		11
Thermal Shock Resistance, points		16

Alloy Composition

Carbon (C), %		0.2 to 0.5
Carbon (C), %		0.18 to 0.25

Chromium (Cr), %		19 to 23
Chromium (Cr), %		14 to 17

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

Iron (Fe), %		44.9 to 57.8
Iron (Fe), %		40.7 to 51.8

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		1.0 to 2.5

Molybdenum (Mo), %		0 to 0.5
Molybdenum (Mo), %		0 to 0.75

Nickel (Ni), %		23 to 27
Nickel (Ni), %		33 to 37

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

Silicon (Si), %		0 to 2.0
Silicon (Si), %		0 to 1.0

Sulfur (S), %		0 to 0.040
Sulfur (S), %		0 to 0.030