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S38100 Stainless Steel vs. EN 1.4421 Stainless Steel

Both S38100 stainless steel and EN 1.4421 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S38100 stainless steel and the bottom bar is EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
11 to 17
Fatigue Strength, MPa 210
380 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 580
880 to 1100
Tensile Strength: Yield (Proof), MPa 230
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 970
870
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.6
Embodied Energy, MJ/kg 54
36
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 18
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 140
960 to 2270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
31 to 39
Strength to Weight: Bending, points 20
26 to 30
Thermal Diffusivity, mm2/s 4.0
4.4
Thermal Shock Resistance, points 13
31 to 39

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 17 to 19
15.5 to 17.5
Iron (Fe), % 57.9 to 64
74.4 to 80.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 17.5 to 18.5
4.0 to 5.5
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 1.5 to 2.5
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020