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EN 1.4729 Stainless Steel vs. SAE-AISI M48 Steel

Both EN 1.4729 stainless steel and SAE-AISI M48 steel are iron alloys. They have 72% of their average alloy composition in common. There are 16 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.4729 stainless steel and the bottom bar is SAE-AISI M48 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
78

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1420
1670
Melting Onset (Solidus), °C 1380
1620
Specific Heat Capacity, J/kg-K 490
420
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
48
Density, g/cm3 7.6
8.7
Embodied Carbon, kg CO2/kg material 2.1
13
Embodied Energy, MJ/kg 29
190
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 14
37
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22

Alloy Composition

Carbon (C), % 0.3 to 0.5
1.4 to 1.5
Chromium (Cr), % 12 to 14
3.5 to 4.0
Cobalt (Co), % 0
8.0 to 10
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 80.4 to 86.7
63.8 to 69.8
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.5
4.8 to 5.5
Nickel (Ni), % 0 to 1.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
9.5 to 10.5
Vanadium (V), % 0
2.8 to 3.3