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EN 1.4874 Stainless Steel vs. S21640 Stainless Steel

Both EN 1.4874 stainless steel and S21640 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 30 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 1.4874 stainless steel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
230
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 6.7
46
Fatigue Strength, MPa 180
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 480
740
Tensile Strength: Yield (Proof), MPa 360
350

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 560
490
Maximum Temperature: Mechanical, °C 1150
940
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 70
17
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
3.6
Embodied Energy, MJ/kg 110
51
Embodied Water, L/kg 290
150

Common Calculations

PREN (Pitting Resistance) 34
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
280
Resilience: Unit (Modulus of Resilience), kJ/m3 310
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
27
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 3.3
4.0
Thermal Shock Resistance, points 11
16

Alloy Composition

Carbon (C), % 0.35 to 0.65
0 to 0.080
Chromium (Cr), % 19 to 22
17.5 to 19.5
Cobalt (Co), % 18.5 to 22
0
Iron (Fe), % 23 to 38.9
63 to 74.3
Manganese (Mn), % 0 to 2.0
3.5 to 6.5
Molybdenum (Mo), % 2.5 to 3.0
0.5 to 2.0
Nickel (Ni), % 18 to 22
4.0 to 6.5
Niobium (Nb), % 0.75 to 1.3
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0