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EN 1.4618 Stainless Steel vs. S42030 Stainless Steel

Both EN 1.4618 stainless steel and S42030 stainless steel are iron alloys. They have 83% 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 1.4618 stainless steel and the bottom bar is S42030 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
16
Fatigue Strength, MPa 240 to 250
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 480 to 500
410
Tensile Strength: Ultimate (UTS), MPa 680 to 700
670
Tensile Strength: Yield (Proof), MPa 250 to 260
410

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 900
780
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
28
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.5
Embodied Energy, MJ/kg 39
34
Embodied Water, L/kg 150
110

Common Calculations

PREN (Pitting Resistance) 19
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
92
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
440
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
24
Strength to Weight: Bending, points 22 to 23
22
Thermal Diffusivity, mm2/s 4.0
7.7
Thermal Shock Resistance, points 15 to 16
24

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.3
Chromium (Cr), % 16.5 to 18.5
12 to 14
Copper (Cu), % 1.0 to 2.5
2.0 to 3.0
Iron (Fe), % 62.7 to 72.5
77.6 to 85
Manganese (Mn), % 5.5 to 9.5
0 to 1.0
Molybdenum (Mo), % 0
1.0 to 3.0
Nickel (Ni), % 4.5 to 5.5
0
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030