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AISI 348H Stainless Steel vs. EN 1.0308 Steel

Both AISI 348H stainless steel and EN 1.0308 steel are iron alloys. They have 70% 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 AISI 348H stainless steel and the bottom bar is EN 1.0308 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
100 to 130
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
7.8 to 28
Fatigue Strength, MPa 200
140 to 200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400
230 to 260
Tensile Strength: Ultimate (UTS), MPa 580
360 to 440
Tensile Strength: Yield (Proof), MPa 230
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.9
1.4
Embodied Energy, MJ/kg 56
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
32 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 140
93 to 300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
13 to 16
Strength to Weight: Bending, points 20
14 to 16
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 13
11 to 14

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.17
Chromium (Cr), % 17 to 19
0
Cobalt (Co), % 0 to 0.2
0
Iron (Fe), % 63.8 to 73.6
98.2 to 100
Manganese (Mn), % 0 to 2.0
0 to 1.2
Nickel (Ni), % 9.0 to 13
0
Niobium (Nb), % 0.32 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.045
Tantalum (Ta), % 0 to 0.1
0