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AISI 416 Stainless Steel vs. S40930 Stainless Steel

Both AISI 416 stainless steel and S40930 stainless steel are iron alloys. They have a very high 98% 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 AISI 416 stainless steel and the bottom bar is S40930 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 320
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 31
23
Fatigue Strength, MPa 230 to 340
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 340 to 480
270
Tensile Strength: Ultimate (UTS), MPa 510 to 800
430
Tensile Strength: Yield (Proof), MPa 290 to 600
190

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 680
710
Melting Completion (Liquidus), °C 1530
1450
Melting Onset (Solidus), °C 1480
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
25
Thermal Expansion, µm/m-K 9.9
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
8.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.3
Embodied Energy, MJ/kg 27
32
Embodied Water, L/kg 100
94

Common Calculations

PREN (Pitting Resistance) 13
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 140
80
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 940
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 29
16
Strength to Weight: Bending, points 18 to 25
16
Thermal Diffusivity, mm2/s 8.1
6.7
Thermal Shock Resistance, points 19 to 30
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 12 to 14
10.5 to 11.7
Iron (Fe), % 83.2 to 87.9
84.7 to 89.4
Manganese (Mn), % 0 to 1.3
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.080 to 0.75
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.020
Titanium (Ti), % 0
0.050 to 0.2