S21603 Stainless Steel vs. SAE-AISI F1 Steel

Both S21603 stainless steel and SAE-AISI F1 steel are iron alloys. They have 63% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is SAE-AISI F1 steel.

UNS S21603 (XM-18) Stainless Steel SAE-AISI F1 (T60601) Low-Alloy Tool Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		79
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		690
Tensile Strength: Ultimate (UTS), MPa		620 to 2320

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		250

Melting Completion (Liquidus), °C		1420
Melting Completion (Liquidus), °C		1480

Melting Onset (Solidus), °C		1380
Melting Onset (Solidus), °C		1430

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

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Base Metal Price, % relative		17
Base Metal Price, % relative		5.0

Density, g/cm³		7.7
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		3.6
Embodied Carbon, kg CO₂/kg material		1.7

Embodied Energy, MJ/kg		50
Embodied Energy, MJ/kg		24

Embodied Water, L/kg		160
Embodied Water, L/kg		46

Common Calculations

PREN (Pitting Resistance)		34
PREN (Pitting Resistance)		2.3

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		25
Strength to Weight: Axial, points		22 to 82

Strength to Weight: Bending, points		22
Strength to Weight: Bending, points		20 to 49

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		19 to 70

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		1.0 to 1.3

Chromium (Cr), %		17.5 to 22
Chromium (Cr), %		0

Iron (Fe), %		57.6 to 67.8
Iron (Fe), %		95.9 to 98

Manganese (Mn), %		7.5 to 9.0
Manganese (Mn), %		0 to 0.5

Molybdenum (Mo), %		2.0 to 3.0
Molybdenum (Mo), %		0

Nickel (Ni), %		5.0 to 7.0
Nickel (Ni), %		0

Nitrogen (N), %		0.25 to 0.5
Nitrogen (N), %		0

Phosphorus (P), %		0 to 0.045
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 0.75
Silicon (Si), %		0.1 to 0.5

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

Tungsten (W), %		0
Tungsten (W), %		1.0 to 1.8