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EN 1.5502 Steel vs. AISI 348H Stainless Steel

Both EN 1.5502 steel and AISI 348H stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 32 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 1.5502 steel and the bottom bar is AISI 348H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 160
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 20
40
Fatigue Strength, MPa 190 to 290
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 62 to 76
51
Shear Modulus, GPa 73
77
Shear Strength, MPa 280 to 330
400
Tensile Strength: Ultimate (UTS), MPa 400 to 1380
580
Tensile Strength: Yield (Proof), MPa 270 to 440
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
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 52
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
56
Embodied Water, L/kg 47
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41 to 210
190
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 520
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 14 to 49
21
Strength to Weight: Bending, points 15 to 35
20
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 12 to 40
13

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.15 to 0.2
0.040 to 0.1
Chromium (Cr), % 0 to 0.3
17 to 19
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98 to 99.249
63.8 to 73.6
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Nickel (Ni), % 0
9.0 to 13
Niobium (Nb), % 0
0.32 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030
Tantalum (Ta), % 0
0 to 0.1