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S41425 Stainless Steel vs. S21800 Stainless Steel

Both S41425 stainless steel and S21800 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S41425 stainless steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
40
Fatigue Strength, MPa 450
330
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
62
Shear Modulus, GPa 77
75
Shear Strength, MPa 570
510
Tensile Strength: Ultimate (UTS), MPa 920
740
Tensile Strength: Yield (Proof), MPa 750
390

Thermal Properties

Latent Heat of Fusion, J/g 280
340
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 810
900
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 2.9
3.1
Embodied Energy, MJ/kg 40
45
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 21
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
250
Resilience: Unit (Modulus of Resilience), kJ/m3 1420
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 33
27
Strength to Weight: Bending, points 27
24
Thermal Shock Resistance, points 33
17

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.1
Chromium (Cr), % 12 to 15
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 74 to 81.9
59.1 to 65.4
Manganese (Mn), % 0.5 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 4.0 to 7.0
8.0 to 9.0
Nitrogen (N), % 0.060 to 0.12
0.080 to 0.18
Phosphorus (P), % 0 to 0.020
0 to 0.060
Silicon (Si), % 0 to 0.5
3.5 to 4.5
Sulfur (S), % 0 to 0.0050
0 to 0.030