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EN 1.0258 Steel vs. AISI 442 Stainless Steel

Both EN 1.0258 steel and AISI 442 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 31 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 1.0258 steel and the bottom bar is AISI 442 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
23
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Shear Strength, MPa 310
370
Tensile Strength: Ultimate (UTS), MPa 490
580
Tensile Strength: Yield (Proof), MPa 290
310

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
22
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
10
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.3
Embodied Energy, MJ/kg 19
32
Embodied Water, L/kg 47
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 13
5.8
Thermal Shock Resistance, points 16
20

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.2
Chromium (Cr), % 0 to 0.3
18 to 23
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.9 to 100
74.1 to 82
Manganese (Mn), % 0 to 1.4
0 to 1.0
Molybdenum (Mo), % 0 to 0.080
0
Nickel (Ni), % 0 to 0.3
0 to 0.6
Niobium (Nb), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0 to 0.040
0
Vanadium (V), % 0 to 0.020
0