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ASTM A387 Grade 5 Steel vs. SAE-AISI M6 Steel

Both ASTM A387 grade 5 steel and SAE-AISI M6 steel are iron alloys. They have 77% 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 ASTM A387 grade 5 steel and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 500 to 600
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1460
1560
Melting Onset (Solidus), °C 1420
1510
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
39
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.7
8.0
Embodied Energy, MJ/kg 23
120
Embodied Water, L/kg 69
160

Common Calculations

PREN (Pitting Resistance) 6.8
28
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18 to 21
28 to 73
Strength to Weight: Bending, points 18 to 20
24 to 45
Thermal Diffusivity, mm2/s 11
4.7
Thermal Shock Resistance, points 14 to 17
26 to 68

Alloy Composition

Carbon (C), % 0 to 0.15
0.75 to 0.85
Chromium (Cr), % 4.0 to 6.0
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Iron (Fe), % 92.1 to 95.3
68.8 to 74.6
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.45 to 0.65
4.5 to 5.5
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0.2 to 0.45
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7

Comparable Variants