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S45000 Stainless Steel vs. S40920 Stainless Steel

Both S45000 stainless steel and S40920 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 33 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 S45000 stainless steel and the bottom bar is S40920 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 410
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 6.8 to 14
22
Fatigue Strength, MPa 330 to 650
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 590 to 830
270
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
430
Tensile Strength: Yield (Proof), MPa 580 to 1310
190

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 400
450
Maximum Temperature: Mechanical, °C 840
710
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
26
Thermal Expansion, µm/m-K 11
10

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
6.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 39
28
Embodied Water, L/kg 130
94

Common Calculations

PREN (Pitting Resistance) 17
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 160
78
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
97
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 35 to 50
15
Strength to Weight: Bending, points 28 to 36
16
Thermal Diffusivity, mm2/s 4.5
6.9
Thermal Shock Resistance, points 33 to 47
15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 14 to 16
10.5 to 11.7
Copper (Cu), % 1.3 to 1.8
0
Iron (Fe), % 72.1 to 79.3
85.1 to 89.4
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 5.0 to 7.0
0 to 0.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.030
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 0.020
Titanium (Ti), % 0
0.15 to 0.5