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AISI 316H Stainless Steel vs. SAE-AISI M4 Steel

Both AISI 316H stainless steel and SAE-AISI M4 steel are iron alloys. They have 75% of their average alloy composition in common. There are 22 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 AISI 316H stainless steel and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 580
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1400
1560
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
25
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 3.9
14
Embodied Energy, MJ/kg 53
210
Embodied Water, L/kg 150
110

Common Calculations

PREN (Pitting Resistance) 25
30
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
26 to 72
Strength to Weight: Bending, points 20
23 to 45
Thermal Diffusivity, mm2/s 4.2
6.9
Thermal Shock Resistance, points 13
24 to 68

Alloy Composition

Carbon (C), % 0.040 to 0.1
1.3 to 1.4
Chromium (Cr), % 16 to 18
3.8 to 4.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 72
75.9 to 81.4
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 2.0 to 3.0
4.3 to 5.5
Nickel (Ni), % 10 to 14
0 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
5.3 to 6.5
Vanadium (V), % 0
3.8 to 4.5