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S40920 Stainless Steel vs. EN 1.4971 Stainless Steel

Both S40920 stainless steel and EN 1.4971 stainless steel are iron alloys. They have 43% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S40920 stainless steel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
240
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
34
Fatigue Strength, MPa 130
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
81
Shear Strength, MPa 270
530
Tensile Strength: Ultimate (UTS), MPa 430
800
Tensile Strength: Yield (Proof), MPa 190
340

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 450
570
Maximum Temperature: Mechanical, °C 710
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 26
13
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
70
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.0
7.6
Embodied Energy, MJ/kg 28
110
Embodied Water, L/kg 94
300

Common Calculations

PREN (Pitting Resistance) 11
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
220
Resilience: Unit (Modulus of Resilience), kJ/m3 97
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
26
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 6.9
3.4
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.030
0.080 to 0.16
Chromium (Cr), % 10.5 to 11.7
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Iron (Fe), % 85.1 to 89.4
24.3 to 37.1
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.5
19 to 21
Niobium (Nb), % 0 to 0.1
0.75 to 1.3
Nitrogen (N), % 0 to 0.030
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0.15 to 0.5
0
Tungsten (W), % 0
2.0 to 3.0