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S32950 Stainless Steel vs. EN 1.4981 Stainless Steel

Both S32950 stainless steel and EN 1.4981 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S32950 stainless steel and the bottom bar is EN 1.4981 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
39
Fatigue Strength, MPa 330
210
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 480
420
Tensile Strength: Ultimate (UTS), MPa 780
610
Tensile Strength: Yield (Proof), MPa 550
240

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 460
520
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
4.8
Embodied Energy, MJ/kg 47
67
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 37
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 730
150
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 4.3
4.3
Thermal Shock Resistance, points 21
14

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.1
Chromium (Cr), % 26 to 29
15.5 to 17.5
Iron (Fe), % 60.3 to 69.4
59.6 to 66.7
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 1.0 to 2.5
1.6 to 2.0
Nickel (Ni), % 3.5 to 5.2
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0.15 to 0.35
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.6
0.3 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.015