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S31260 Stainless Steel vs. S30415 Stainless Steel

Both S31260 stainless steel and S30415 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 90% 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 S31260 stainless steel and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
45
Fatigue Strength, MPa 370
300
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 500
470
Tensile Strength: Ultimate (UTS), MPa 790
670
Tensile Strength: Yield (Proof), MPa 540
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.9
3.1
Embodied Energy, MJ/kg 53
43
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 39
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
250
Resilience: Unit (Modulus of Resilience), kJ/m3 720
280
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
24
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 4.3
5.6
Thermal Shock Resistance, points 22
15

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 24 to 26
18 to 19
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 59.6 to 67.6
67.8 to 71.8
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.5 to 7.5
9.0 to 10
Nitrogen (N), % 0.1 to 0.3
0.12 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.75
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.1 to 0.5
0