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S30415 Stainless Steel vs. S30530 Stainless Steel

Both S30415 stainless steel and S30530 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is S30415 stainless steel and the bottom bar is S30530 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
46
Fatigue Strength, MPa 300
210
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 84
79
Shear Modulus, GPa 77
77
Shear Strength, MPa 470
410
Tensile Strength: Ultimate (UTS), MPa 670
590
Tensile Strength: Yield (Proof), MPa 330
230

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 940
970
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
3.4
Embodied Energy, MJ/kg 43
48
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 21
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
210
Resilience: Unit (Modulus of Resilience), kJ/m3 280
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 5.6
4.1
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0.040 to 0.060
0 to 0.080
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 19
17 to 20.5
Copper (Cu), % 0
0.75 to 3.5
Iron (Fe), % 67.8 to 71.8
58.4 to 72.5
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 9.0 to 10
8.5 to 11.5
Nitrogen (N), % 0.12 to 0.18
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 1.0 to 2.0
0.5 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030