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EN 1.8967 Steel vs. S21640 Stainless Steel

Both EN 1.8967 steel and S21640 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 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 EN 1.8967 steel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
46
Fatigue Strength, MPa 220
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 350
520
Tensile Strength: Ultimate (UTS), MPa 570
740
Tensile Strength: Yield (Proof), MPa 340
350

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.8
3.6
Embodied Energy, MJ/kg 25
51
Embodied Water, L/kg 52
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
280
Resilience: Unit (Modulus of Resilience), kJ/m3 300
300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 17
16

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Carbon (C), % 0 to 0.19
0 to 0.080
Chromium (Cr), % 0.35 to 0.85
17.5 to 19.5
Copper (Cu), % 0.2 to 0.6
0
Iron (Fe), % 94.6 to 99
63 to 74.3
Manganese (Mn), % 0.45 to 1.6
3.5 to 6.5
Molybdenum (Mo), % 0 to 0.35
0.5 to 2.0
Nickel (Ni), % 0 to 0.7
4.0 to 6.5
Niobium (Nb), % 0 to 0.065
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0 to 0.55
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0 to 0.12
0
Vanadium (V), % 0 to 0.14
0
Zirconium (Zr), % 0 to 0.17
0