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EN 1.4988 Stainless Steel vs. EN 1.0434 Steel

Both EN 1.4988 stainless steel and EN 1.0434 steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4988 stainless steel and the bottom bar is EN 1.0434 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
110 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
12 to 28
Fatigue Strength, MPa 230
190 to 300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
280 to 330
Tensile Strength: Ultimate (UTS), MPa 640
390 to 540
Tensile Strength: Yield (Proof), MPa 290
250 to 450

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 920
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 6.0
1.4
Embodied Energy, MJ/kg 89
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
39 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 210
170 to 540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
14 to 19
Strength to Weight: Bending, points 21
15 to 19
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 14
12 to 17

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0.040 to 0.1
0.15 to 0.19
Chromium (Cr), % 15.5 to 17.5
0
Iron (Fe), % 62.1 to 69.5
98.8 to 99.18
Manganese (Mn), % 0 to 1.5
0.65 to 0.85
Molybdenum (Mo), % 1.1 to 1.5
0
Nickel (Ni), % 12.5 to 14.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0.6 to 0.85
0