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EN 1.4031 Stainless Steel vs. S30530 Stainless Steel

Both EN 1.4031 stainless steel and S30530 stainless steel are iron alloys. They have 80% 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 EN 1.4031 stainless steel and the bottom bar is S30530 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 13
46
Fatigue Strength, MPa 220 to 400
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 400 to 540
410
Tensile Strength: Ultimate (UTS), MPa 670 to 900
590
Tensile Strength: Yield (Proof), MPa 390 to 730
230

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 770
970
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
3.4
Embodied Energy, MJ/kg 27
48
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
210
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 32
21
Strength to Weight: Bending, points 22 to 27
20
Thermal Diffusivity, mm2/s 8.1
4.1
Thermal Shock Resistance, points 23 to 32
13

Alloy Composition

Carbon (C), % 0.36 to 0.42
0 to 0.080
Chromium (Cr), % 12.5 to 14.5
17 to 20.5
Copper (Cu), % 0
0.75 to 3.5
Iron (Fe), % 83 to 87.1
58.4 to 72.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
8.5 to 11.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0.5 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.030