EN 1.4729 Stainless Steel vs. S21600 Stainless Steel

Both EN 1.4729 stainless steel and S21600 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 77% 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 EN 1.4729 stainless steel and the bottom bar is S21600 stainless steel.

EN 1.4729 (GX40CrSi13) Cast Stainless Steel UNS S21600 (XM-17) Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness		260
Brinell Hardness		200

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

Elongation at Break, %		15
Elongation at Break, %		46

Poisson's Ratio		0.28
Poisson's Ratio		0.28

Shear Modulus, GPa		75
Shear Modulus, GPa		79

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		290

Maximum Temperature: Corrosion, °C		390
Maximum Temperature: Corrosion, °C		420

Maximum Temperature: Mechanical, °C		850
Maximum Temperature: Mechanical, °C		990

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

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

Specific Heat Capacity, J/kg-K		490
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		10
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Base Metal Price, % relative		7.5
Base Metal Price, % relative		17

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

Embodied Carbon, kg CO₂/kg material		2.1
Embodied Carbon, kg CO₂/kg material		3.6

Embodied Energy, MJ/kg		29
Embodied Energy, MJ/kg		50

Embodied Water, L/kg		100
Embodied Water, L/kg		160

Common Calculations

PREN (Pitting Resistance)		14
PREN (Pitting Resistance)		34

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

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

Alloy Composition

Carbon (C), %		0.3 to 0.5
Carbon (C), %		0 to 0.080

Chromium (Cr), %		12 to 14
Chromium (Cr), %		17.5 to 22

Iron (Fe), %		80.4 to 86.7
Iron (Fe), %		57.6 to 67.8

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		7.5 to 9.0

Molybdenum (Mo), %		0 to 0.5
Molybdenum (Mo), %		2.0 to 3.0

Nickel (Ni), %		0 to 1.0
Nickel (Ni), %		5.0 to 7.0

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

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.045

Silicon (Si), %		1.0 to 2.5
Silicon (Si), %		0 to 0.75

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