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S20910 Stainless Steel vs. S38815 Stainless Steel

Both S20910 stainless steel and S38815 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 29 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 S20910 stainless steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 39
34
Fatigue Strength, MPa 310 to 460
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
74
Shear Strength, MPa 500 to 570
410
Tensile Strength: Ultimate (UTS), MPa 780 to 940
610
Tensile Strength: Yield (Proof), MPa 430 to 810
290

Thermal Properties

Latent Heat of Fusion, J/g 300
370
Maximum Temperature: Corrosion, °C 460
400
Maximum Temperature: Mechanical, °C 1080
860
Melting Completion (Liquidus), °C 1420
1360
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 22
19
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 4.8
3.8
Embodied Energy, MJ/kg 68
54
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 34
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
170
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 33
22
Strength to Weight: Bending, points 24 to 27
21
Thermal Shock Resistance, points 17 to 21
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 20.5 to 23.5
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 52.1 to 62.1
56.1 to 67
Manganese (Mn), % 4.0 to 6.0
0 to 2.0
Molybdenum (Mo), % 1.5 to 3.0
0.75 to 1.5
Nickel (Ni), % 11.5 to 13.5
13 to 17
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
5.5 to 6.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0.1 to 0.3
0