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EN 1.1203 Steel vs. AISI 347H Stainless Steel

Both EN 1.1203 steel and AISI 347H stainless steel are iron alloys. They have 71% 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 1.1203 steel and the bottom bar is AISI 347H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 230
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 15
39
Fatigue Strength, MPa 210 to 310
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 420 to 480
400
Tensile Strength: Ultimate (UTS), MPa 690 to 780
580
Tensile Strength: Yield (Proof), MPa 340 to 480
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 48
16
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.6
Embodied Energy, MJ/kg 19
52
Embodied Water, L/kg 47
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 610
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
21
Strength to Weight: Bending, points 22 to 24
20
Thermal Diffusivity, mm2/s 13
4.2
Thermal Shock Resistance, points 22 to 25
13

Alloy Composition

Carbon (C), % 0.52 to 0.6
0.040 to 0.1
Chromium (Cr), % 0 to 0.4
17 to 19
Iron (Fe), % 97.1 to 98.9
64.1 to 74
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
9.0 to 13
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030