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SAE-AISI M34 Steel vs. EN 1.4905 Stainless Steel

Both SAE-AISI M34 steel and EN 1.4905 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M34 steel and the bottom bar is EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 800 to 2170
740

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1540
1480
Melting Onset (Solidus), °C 1500
1440
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 24
26
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.5
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 9.5
2.8
Embodied Energy, MJ/kg 140
40
Embodied Water, L/kg 150
90

Common Calculations

PREN (Pitting Resistance) 35
15
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 74
26
Strength to Weight: Bending, points 23 to 46
23
Thermal Diffusivity, mm2/s 6.7
7.0
Thermal Shock Resistance, points 25 to 67
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0.85 to 0.92
0.090 to 0.13
Chromium (Cr), % 3.5 to 4.0
8.5 to 9.5
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.5
86.2 to 88.8
Manganese (Mn), % 0.15 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 7.8 to 9.2
0.9 to 1.1
Nickel (Ni), % 0 to 0.3
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.050 to 0.090
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.45
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 1.4 to 2.1
0.9 to 1.1
Vanadium (V), % 1.9 to 2.3
0.18 to 0.25