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EN 1.8912 Steel vs. EN 1.4988 Stainless Steel

Both EN 1.8912 steel and EN 1.4988 stainless steel are iron alloys. They have 68% 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 1.8912 steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
34
Fatigue Strength, MPa 290
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 380
430
Tensile Strength: Ultimate (UTS), MPa 600
640
Tensile Strength: Yield (Proof), MPa 410
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
920
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
6.0
Embodied Energy, MJ/kg 24
89
Embodied Water, L/kg 51
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 460
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
23
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 18
14

Alloy Composition

Aluminum (Al), % 0 to 0.015
0
Carbon (C), % 0 to 0.22
0.040 to 0.1
Chromium (Cr), % 0 to 0.35
15.5 to 17.5
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 95 to 99.05
62.1 to 69.5
Manganese (Mn), % 1.0 to 1.8
0 to 1.5
Molybdenum (Mo), % 0 to 0.13
1.1 to 1.5
Nickel (Ni), % 0 to 0.85
12.5 to 14.5
Niobium (Nb), % 0 to 0.060
0.4 to 1.2
Nitrogen (N), % 0 to 0.027
0.060 to 0.14
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.65
0.3 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.22
0.6 to 0.85