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ASTM A387 Grade 2 Steel vs. SAE-AISI M48 Steel

Both ASTM A387 grade 2 steel and SAE-AISI M48 steel are iron alloys. They have 69% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 2 steel and the bottom bar is SAE-AISI M48 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 73
78
Tensile Strength: Ultimate (UTS), MPa 470 to 550
890 to 2390

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1470
1670
Melting Onset (Solidus), °C 1420
1620
Specific Heat Capacity, J/kg-K 470
420
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
48
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 1.6
13
Embodied Energy, MJ/kg 20
190
Embodied Water, L/kg 50
160

Common Calculations

PREN (Pitting Resistance) 2.4
37
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 16 to 20
28 to 76
Strength to Weight: Bending, points 17 to 19
23 to 45
Thermal Shock Resistance, points 14 to 16
26 to 71

Alloy Composition

Carbon (C), % 0.050 to 0.21
1.4 to 1.5
Chromium (Cr), % 0.5 to 0.8
3.5 to 4.0
Cobalt (Co), % 0
8.0 to 10
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97.1 to 98.3
63.8 to 69.8
Manganese (Mn), % 0.55 to 0.8
0.15 to 0.4
Molybdenum (Mo), % 0.45 to 0.6
4.8 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0.15 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
9.5 to 10.5
Vanadium (V), % 0
2.8 to 3.3

Comparable Variants