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SAE-AISI M4 Steel vs. EN 1.4980 Stainless Steel

Both SAE-AISI M4 steel and EN 1.4980 stainless steel are iron alloys. They have 61% 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 M4 steel and the bottom bar is EN 1.4980 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
1030

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1560
1380
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
26
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 14
6.0
Embodied Energy, MJ/kg 210
87
Embodied Water, L/kg 110
170

Common Calculations

PREN (Pitting Resistance) 30
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
36
Strength to Weight: Bending, points 23 to 45
28
Thermal Diffusivity, mm2/s 6.9
3.5
Thermal Shock Resistance, points 24 to 68
22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 1.3 to 1.4
0.030 to 0.080
Chromium (Cr), % 3.8 to 4.8
13.5 to 16
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
49.2 to 58.5
Manganese (Mn), % 0.15 to 0.4
1.0 to 2.0
Molybdenum (Mo), % 4.3 to 5.5
1.0 to 1.5
Nickel (Ni), % 0 to 0.3
24 to 27
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0.1 to 0.5