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S30615 Stainless Steel vs. S40910 Stainless Steel

Both S30615 stainless steel and S40910 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 73% 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 S30615 stainless steel and the bottom bar is S40910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 39
23
Fatigue Strength, MPa 270
130
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 84
76
Shear Modulus, GPa 75
75
Shear Strength, MPa 470
270
Tensile Strength: Ultimate (UTS), MPa 690
430
Tensile Strength: Yield (Proof), MPa 310
190

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 960
710
Melting Completion (Liquidus), °C 1370
1450
Melting Onset (Solidus), °C 1320
1410
Specific Heat Capacity, J/kg-K 500
480
Thermal Conductivity, W/m-K 14
26
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 19
7.0
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.7
2.0
Embodied Energy, MJ/kg 53
28
Embodied Water, L/kg 170
94

Common Calculations

PREN (Pitting Resistance) 18
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
80
Resilience: Unit (Modulus of Resilience), kJ/m3 260
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
16
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 3.7
6.9
Thermal Shock Resistance, points 16
16

Alloy Composition

Aluminum (Al), % 0.8 to 1.5
0
Carbon (C), % 0.16 to 0.24
0 to 0.030
Chromium (Cr), % 17 to 19.5
10.5 to 11.7
Iron (Fe), % 56.7 to 65.3
85 to 89.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 13.5 to 16
0 to 0.5
Niobium (Nb), % 0
0 to 0.17
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 3.2 to 4.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.5