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S81921 Stainless Steel vs. EN 1.4513 Stainless Steel

Both S81921 stainless steel and EN 1.4513 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 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 (2, in this case) are not shown.

For each property being compared, the top bar is S81921 stainless steel and the bottom bar is EN 1.4513 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
26
Fatigue Strength, MPa 370
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 460
310
Tensile Strength: Ultimate (UTS), MPa 710
480
Tensile Strength: Yield (Proof), MPa 500
240

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 430
500
Maximum Temperature: Mechanical, °C 990
880
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 14
10
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.5
Embodied Energy, MJ/kg 41
35
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 28
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
100
Resilience: Unit (Modulus of Resilience), kJ/m3 630
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.0
6.8
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 19 to 22
16 to 18
Iron (Fe), % 66.7 to 75.9
77.7 to 83.1
Manganese (Mn), % 2.0 to 4.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 2.0
0.8 to 1.4
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.14 to 0.2
0 to 0.020
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
Titanium (Ti), % 0
0.15 to 0.8