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S20910 Stainless Steel vs. EN 1.3956 Stainless Steel

Both S20910 stainless steel and EN 1.3956 stainless steel are iron alloys. Their average alloy composition is basically identical. There are 27 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 S20910 stainless steel and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 39
27
Fatigue Strength, MPa 310 to 460
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 780 to 940
650
Tensile Strength: Yield (Proof), MPa 430 to 810
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
460
Maximum Temperature: Mechanical, °C 1080
1080
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

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

Common Calculations

PREN (Pitting Resistance) 34
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
150
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 33
23
Strength to Weight: Bending, points 24 to 27
21
Thermal Shock Resistance, points 17 to 21
18

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 20.5 to 23.5
20.5 to 23.5
Iron (Fe), % 52.1 to 62.1
51.9 to 62.1
Manganese (Mn), % 4.0 to 6.0
4.0 to 6.0
Molybdenum (Mo), % 1.5 to 3.0
1.5 to 3.0
Nickel (Ni), % 11.5 to 13.5
11.5 to 13.5
Niobium (Nb), % 0.1 to 0.3
0.1 to 0.3
Nitrogen (N), % 0.2 to 0.4
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.1 to 0.3
0.1 to 0.3