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EN 1.4104 Stainless Steel vs. S42030 Stainless Steel

Both EN 1.4104 stainless steel and S42030 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4104 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, % 11 to 23
16
Fatigue Strength, MPa 230 to 310
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 400 to 450
410
Tensile Strength: Ultimate (UTS), MPa 630 to 750
670
Tensile Strength: Yield (Proof), MPa 350 to 560
410

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 860
780
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
28
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
10
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
2.5
Embodied Energy, MJ/kg 30
34
Embodied Water, L/kg 120
110

Common Calculations

PREN (Pitting Resistance) 18
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 120
92
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 800
440
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23 to 27
24
Strength to Weight: Bending, points 21 to 24
22
Thermal Diffusivity, mm2/s 6.7
7.7
Thermal Shock Resistance, points 22 to 27
24

Alloy Composition

Carbon (C), % 0.1 to 0.17
0 to 0.3
Chromium (Cr), % 15.5 to 17.5
12 to 14
Copper (Cu), % 0
2.0 to 3.0
Iron (Fe), % 78.8 to 84.1
77.6 to 85
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.6
1.0 to 3.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.030