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SAE-AISI M4 Steel vs. EN 1.6570 Steel

Both SAE-AISI M4 steel and EN 1.6570 steel are iron alloys. They have 81% 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 M4 steel and the bottom bar is EN 1.6570 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
73
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
910 to 1130

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 25
40
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.9
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 14
1.7
Embodied Energy, MJ/kg 210
23
Embodied Water, L/kg 110
56

Common Calculations

PREN (Pitting Resistance) 30
2.5
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
32 to 40
Strength to Weight: Bending, points 23 to 45
27 to 31
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 24 to 68
27 to 33

Alloy Composition

Carbon (C), % 1.3 to 1.4
0.28 to 0.35
Chromium (Cr), % 3.8 to 4.8
1.0 to 1.4
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
94 to 96.2
Manganese (Mn), % 0.15 to 0.4
0.6 to 1.0
Molybdenum (Mo), % 4.3 to 5.5
0.3 to 0.5
Nickel (Ni), % 0 to 0.3
1.6 to 2.1
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.45
0 to 0.6
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

Comparable Variants