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EN 1.6368 Steel vs. AISI 304H Stainless Steel

Both EN 1.6368 steel and AISI 304H stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.6368 steel and the bottom bar is AISI 304H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
40
Fatigue Strength, MPa 310 to 330
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 410 to 430
400
Tensile Strength: Ultimate (UTS), MPa 660 to 690
580
Tensile Strength: Yield (Proof), MPa 460 to 490
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
960
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.0
Embodied Energy, MJ/kg 22
43
Embodied Water, L/kg 53
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 650
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 24
21
Strength to Weight: Bending, points 21 to 22
20
Thermal Diffusivity, mm2/s 11
4.5
Thermal Shock Resistance, points 20
13

Alloy Composition

Aluminum (Al), % 0.015 to 0.040
0
Carbon (C), % 0 to 0.17
0.040 to 0.1
Chromium (Cr), % 0 to 0.3
18 to 20
Copper (Cu), % 0.5 to 0.8
0
Iron (Fe), % 95.1 to 97.2
66.6 to 74
Manganese (Mn), % 0.8 to 1.2
0 to 2.0
Molybdenum (Mo), % 0.25 to 0.5
0
Nickel (Ni), % 1.0 to 1.3
8.0 to 10.5
Niobium (Nb), % 0.015 to 0.045
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.25 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030