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S15500 Stainless Steel vs. EN 1.4021 Stainless Steel

Both S15500 stainless steel and EN 1.4021 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 32 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 S15500 stainless steel and the bottom bar is EN 1.4021 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.8 to 16
11 to 17
Fatigue Strength, MPa 350 to 650
240 to 380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 540 to 870
390 to 530
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
630 to 880
Tensile Strength: Yield (Proof), MPa 590 to 1310
390 to 670

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 820
760
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
30
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.7
1.9
Embodied Energy, MJ/kg 39
27
Embodied Water, L/kg 130
100

Common Calculations

PREN (Pitting Resistance) 15
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
400 to 1160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 53
23 to 31
Strength to Weight: Bending, points 26 to 37
21 to 26
Thermal Diffusivity, mm2/s 4.6
8.1
Thermal Shock Resistance, points 30 to 50
22 to 31

Alloy Composition

Carbon (C), % 0 to 0.070
0.16 to 0.25
Chromium (Cr), % 14 to 15.5
12 to 14
Copper (Cu), % 2.5 to 4.5
0
Iron (Fe), % 71.9 to 79.9
83.2 to 87.8
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015