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EN 1.4901 Stainless Steel vs. S20910 Stainless Steel

Both EN 1.4901 stainless steel and S20910 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 30 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 EN 1.4901 stainless steel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
14 to 39
Fatigue Strength, MPa 310
310 to 460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Shear Strength, MPa 460
500 to 570
Tensile Strength: Ultimate (UTS), MPa 740
780 to 940
Tensile Strength: Yield (Proof), MPa 490
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Corrosion, °C 380
460
Maximum Temperature: Mechanical, °C 650
1080
Melting Completion (Liquidus), °C 1490
1420
Melting Onset (Solidus), °C 1450
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
4.8
Embodied Energy, MJ/kg 40
68
Embodied Water, L/kg 89
180

Common Calculations

PREN (Pitting Resistance) 14
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 620
460 to 1640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
28 to 33
Strength to Weight: Bending, points 23
24 to 27
Thermal Diffusivity, mm2/s 6.9
3.6
Thermal Shock Resistance, points 23
17 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0 to 0.060
Chromium (Cr), % 8.5 to 9.5
20.5 to 23.5
Iron (Fe), % 85.8 to 89.1
52.1 to 62.1
Manganese (Mn), % 0.3 to 0.6
4.0 to 6.0
Molybdenum (Mo), % 0.3 to 0.6
1.5 to 3.0
Nickel (Ni), % 0 to 0.4
11.5 to 13.5
Niobium (Nb), % 0.040 to 0.090
0.1 to 0.3
Nitrogen (N), % 0.030 to 0.070
0.2 to 0.4
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0.1 to 0.3
Zirconium (Zr), % 0 to 0.010
0