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SAE-AISI M34 Steel vs. EN 1.4405 Stainless Steel

Both SAE-AISI M34 steel and EN 1.4405 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 1.4405 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 800 to 2170
860

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1540
1450
Melting Onset (Solidus), °C 1500
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 24
17
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 32
13
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 9.5
2.8
Embodied Energy, MJ/kg 140
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 35
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 74
31
Strength to Weight: Bending, points 23 to 46
26
Thermal Diffusivity, mm2/s 6.7
4.6
Thermal Shock Resistance, points 25 to 67
29

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.060
Chromium (Cr), % 3.5 to 4.0
15 to 17
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.5
73.6 to 80.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 7.8 to 9.2
0.7 to 1.5
Nickel (Ni), % 0 to 0.3
4.0 to 6.0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.9 to 2.3
0