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S21900 Stainless Steel vs. ASTM A182 Grade F911

Both S21900 stainless steel and ASTM A182 grade F911 are iron alloys. They have 73% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S21900 stainless steel and the bottom bar is ASTM A182 grade F911.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
20
Fatigue Strength, MPa 380
350
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
46
Shear Modulus, GPa 78
76
Shear Strength, MPa 510
430
Tensile Strength: Ultimate (UTS), MPa 710
690
Tensile Strength: Yield (Proof), MPa 390
500

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 980
600
Melting Completion (Liquidus), °C 1400
1480
Melting Onset (Solidus), °C 1350
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
26
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
10

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.5
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 43
40
Embodied Water, L/kg 160
90

Common Calculations

PREN (Pitting Resistance) 25
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
130
Resilience: Unit (Modulus of Resilience), kJ/m3 380
650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.8
6.9
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.00030 to 0.0060
Carbon (C), % 0 to 0.080
0.090 to 0.13
Chromium (Cr), % 19 to 21.5
8.5 to 9.5
Iron (Fe), % 59.4 to 67.4
86.2 to 88.9
Manganese (Mn), % 8.0 to 10
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 5.5 to 7.5
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0.15 to 0.4
0.040 to 0.090
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010