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EN 1.8888 Steel vs. AISI 434 Stainless Steel

Both EN 1.8888 steel and AISI 434 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.8888 steel and the bottom bar is AISI 434 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
24
Fatigue Strength, MPa 470
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 510
330
Tensile Strength: Ultimate (UTS), MPa 830
520
Tensile Strength: Yield (Proof), MPa 720
320

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 420
880
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
9.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.4
Embodied Energy, MJ/kg 26
33
Embodied Water, L/kg 54
120

Common Calculations

PREN (Pitting Resistance) 2.0
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1370
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
19
Strength to Weight: Bending, points 25
18
Thermal Diffusivity, mm2/s 11
6.7
Thermal Shock Resistance, points 24
19

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0 to 0.12
Chromium (Cr), % 0 to 1.5
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 91.9 to 100
78.6 to 83.3
Manganese (Mn), % 0 to 1.7
0 to 1.0
Molybdenum (Mo), % 0 to 0.7
0.75 to 1.3
Nickel (Ni), % 0 to 2.5
0
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0