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EN 1.4901 Stainless Steel vs. AISI 347H Stainless Steel

Both EN 1.4901 stainless steel and AISI 347H stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 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 1.4901 stainless steel and the bottom bar is AISI 347H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
39
Fatigue Strength, MPa 310
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 460
400
Tensile Strength: Ultimate (UTS), MPa 740
580
Tensile Strength: Yield (Proof), MPa 490
230

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Corrosion, °C 380
480
Maximum Temperature: Mechanical, °C 650
940
Melting Completion (Liquidus), °C 1490
1430
Melting Onset (Solidus), °C 1450
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 40
52
Embodied Water, L/kg 89
150

Common Calculations

PREN (Pitting Resistance) 14
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 620
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 6.9
4.2
Thermal Shock Resistance, points 23
13

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.040 to 0.1
Chromium (Cr), % 8.5 to 9.5
17 to 19
Iron (Fe), % 85.8 to 89.1
64.1 to 74
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.4
9.0 to 13
Niobium (Nb), % 0.040 to 0.090
0 to 1.0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0