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EN 1.4981 Stainless Steel vs. SAE-AISI 6150 Steel

Both EN 1.4981 stainless steel and SAE-AISI 6150 steel are iron alloys. They have 65% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4981 stainless steel and the bottom bar is SAE-AISI 6150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
15 to 23
Fatigue Strength, MPa 210
300 to 750
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 420
400 to 730
Tensile Strength: Ultimate (UTS), MPa 610
630 to 1200
Tensile Strength: Yield (Proof), MPa 240
420 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 16
12 to 13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
2.0
Embodied Energy, MJ/kg 67
28
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 150
460 to 3590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
22 to 43
Strength to Weight: Bending, points 20
21 to 32
Thermal Diffusivity, mm2/s 4.3
13
Thermal Shock Resistance, points 14
20 to 38

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.48 to 0.53
Chromium (Cr), % 15.5 to 17.5
0.8 to 1.1
Iron (Fe), % 59.6 to 66.7
96.7 to 97.7
Manganese (Mn), % 0 to 1.5
0.7 to 0.9
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.3 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Vanadium (V), % 0
0.15 to 0.3