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SAE-AISI 1330 Steel vs. S21800 Stainless Steel

Both SAE-AISI 1330 steel and S21800 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1330 steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 210
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 23
40
Fatigue Strength, MPa 210 to 380
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 330 to 430
510
Tensile Strength: Ultimate (UTS), MPa 520 to 710
740
Tensile Strength: Yield (Proof), MPa 290 to 610
390

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
45
Embodied Water, L/kg 48
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 100
250
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 990
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 19 to 25
27
Strength to Weight: Bending, points 18 to 23
24
Thermal Shock Resistance, points 17 to 23
17

Alloy Composition

Carbon (C), % 0.28 to 0.33
0 to 0.1
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 97.3 to 98
59.1 to 65.4
Manganese (Mn), % 1.6 to 1.9
7.0 to 9.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0.15 to 0.35
3.5 to 4.5
Sulfur (S), % 0 to 0.040
0 to 0.030