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EN 1.6958 Steel vs. SAE-AISI M48 Steel

Both EN 1.6958 steel and SAE-AISI M48 steel are iron alloys. They have 70% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is EN 1.6958 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 1140
890 to 2390

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1670
Melting Onset (Solidus), °C 1420
1620
Specific Heat Capacity, J/kg-K 470
420
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
48
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 2.0
13
Embodied Energy, MJ/kg 27
190
Embodied Water, L/kg 60
160

Common Calculations

PREN (Pitting Resistance) 2.9
37
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 40
28 to 76
Strength to Weight: Bending, points 31
23 to 45
Thermal Shock Resistance, points 39
26 to 71

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
1.4 to 1.5
Chromium (Cr), % 1.2 to 1.7
3.5 to 4.0
Cobalt (Co), % 0
8.0 to 10
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 92.6 to 94.5
63.8 to 69.8
Manganese (Mn), % 0.2 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 0.35 to 0.55
4.8 to 5.5
Nickel (Ni), % 3.3 to 3.8
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0.15 to 0.3
0.15 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
9.5 to 10.5
Vanadium (V), % 0 to 0.12
2.8 to 3.3