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SAE-AISI 6150 Steel vs. EN 1.4958 Stainless Steel

Both SAE-AISI 6150 steel and EN 1.4958 stainless steel are iron alloys. They have 48% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 6150 steel and the bottom bar is EN 1.4958 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15 to 23
40
Fatigue Strength, MPa 300 to 750
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 400 to 730
430
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
630
Tensile Strength: Yield (Proof), MPa 420 to 1160
190

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1090
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
12
Thermal Expansion, µm/m-K 12 to 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.0
5.3
Embodied Energy, MJ/kg 28
75
Embodied Water, L/kg 51
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
190
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
95
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 43
22
Strength to Weight: Bending, points 21 to 32
20
Thermal Diffusivity, mm2/s 13
3.2
Thermal Shock Resistance, points 20 to 38
15

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.5
Carbon (C), % 0.48 to 0.53
0.030 to 0.080
Chromium (Cr), % 0.8 to 1.1
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 96.7 to 97.7
41.1 to 50.6
Manganese (Mn), % 0.7 to 0.9
0 to 1.5
Nickel (Ni), % 0
30 to 32.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0.2 to 0.5
Vanadium (V), % 0.15 to 0.3
0