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S40975 Stainless Steel vs. S30600 Stainless Steel

Both S40975 stainless steel and S30600 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 75% of their average alloy composition in common. There are 33 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 S40975 stainless steel and the bottom bar is S30600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
45
Fatigue Strength, MPa 210
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 290
430
Tensile Strength: Ultimate (UTS), MPa 460
610
Tensile Strength: Yield (Proof), MPa 310
270

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 710
950
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 26
14
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
19
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.0
3.6
Embodied Energy, MJ/kg 28
51
Embodied Water, L/kg 95
150

Common Calculations

PREN (Pitting Resistance) 11
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
220
Resilience: Unit (Modulus of Resilience), kJ/m3 250
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 7.0
3.7
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.018
Chromium (Cr), % 10.5 to 11.7
17 to 18.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 84.4 to 89
58.9 to 65.3
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0.5 to 1.0
14 to 15.5
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
3.7 to 4.3
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0 to 0.75
0