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SAE-AISI M4 Steel vs. S33228 Stainless Steel

Both SAE-AISI M4 steel and S33228 stainless steel are iron alloys. They have 44% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is S33228 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 76
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
570

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1610
1410
Melting Onset (Solidus), °C 1560
1360
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
37
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 14
6.2
Embodied Energy, MJ/kg 210
89
Embodied Water, L/kg 110
220

Common Calculations

PREN (Pitting Resistance) 30
27
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
20
Strength to Weight: Bending, points 23 to 45
19
Thermal Shock Resistance, points 24 to 68
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.025
Carbon (C), % 1.3 to 1.4
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 3.8 to 4.8
26 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
36.5 to 42.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.45
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0