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S20910 Stainless Steel vs. EN 1.4958 Stainless Steel

Both S20910 stainless steel and EN 1.4958 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is EN 1.4958 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 39
40
Fatigue Strength, MPa 310 to 460
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 500 to 570
430
Tensile Strength: Ultimate (UTS), MPa 780 to 940
630
Tensile Strength: Yield (Proof), MPa 430 to 810
190

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
500
Maximum Temperature: Mechanical, °C 1080
1090
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 22
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 4.8
5.3
Embodied Energy, MJ/kg 68
75
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 34
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
190
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 33
22
Strength to Weight: Bending, points 24 to 27
20
Thermal Diffusivity, mm2/s 3.6
3.2
Thermal Shock Resistance, points 17 to 21
15

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.5
Carbon (C), % 0 to 0.060
0.030 to 0.080
Chromium (Cr), % 20.5 to 23.5
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 52.1 to 62.1
41.1 to 50.6
Manganese (Mn), % 4.0 to 6.0
0 to 1.5
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
30 to 32.5
Niobium (Nb), % 0.1 to 0.3
0 to 0.1
Nitrogen (N), % 0.2 to 0.4
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.2 to 0.5
Vanadium (V), % 0.1 to 0.3
0