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SAE-AISI 1552 Steel vs. S21900 Stainless Steel

Both SAE-AISI 1552 steel and S21900 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1552 steel and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
50
Fatigue Strength, MPa 290 to 400
380
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 46
57
Shear Modulus, GPa 72
78
Shear Strength, MPa 460 to 510
510
Tensile Strength: Ultimate (UTS), MPa 760 to 840
710
Tensile Strength: Yield (Proof), MPa 460 to 650
390

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
980
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 47
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 98
300
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1130
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 30
26
Strength to Weight: Bending, points 24 to 25
23
Thermal Diffusivity, mm2/s 14
3.8
Thermal Shock Resistance, points 26 to 29
15

Alloy Composition

Carbon (C), % 0.47 to 0.55
0 to 0.080
Chromium (Cr), % 0
19 to 21.5
Iron (Fe), % 97.9 to 98.3
59.4 to 67.4
Manganese (Mn), % 1.2 to 1.5
8.0 to 10
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030