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SAE-AISI 1345 Steel vs. S21460 Stainless Steel

Both SAE-AISI 1345 steel and S21460 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1345 steel and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 23
46
Fatigue Strength, MPa 230 to 390
390
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 370 to 440
580
Tensile Strength: Ultimate (UTS), MPa 590 to 730
830
Tensile Strength: Yield (Proof), MPa 330 to 620
430

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
920
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
14
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 48
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 120
320
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1040
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 26
30
Strength to Weight: Bending, points 20 to 23
26
Thermal Shock Resistance, points 19 to 23
17

Alloy Composition

Carbon (C), % 0.43 to 0.48
0 to 0.12
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 97.2 to 97.8
57.3 to 63.7
Manganese (Mn), % 1.6 to 1.9
14 to 16
Nickel (Ni), % 0
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030