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S30441 Stainless Steel vs. SAE-AISI 1049 Steel

Both S30441 stainless steel and SAE-AISI 1049 steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S30441 stainless steel and the bottom bar is SAE-AISI 1049 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
11 to 17
Fatigue Strength, MPa 210
250 to 400
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 400
420 to 450
Tensile Strength: Ultimate (UTS), MPa 580
680 to 750
Tensile Strength: Yield (Proof), MPa 230
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 18
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.4
Embodied Energy, MJ/kg 50
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
75 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 140
370 to 1090
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
24 to 27
Strength to Weight: Bending, points 20
22 to 23
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.080
0.46 to 0.53
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 62 to 71.7
98.5 to 98.9
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Nickel (Ni), % 8.0 to 10.5
0
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Tungsten (W), % 0.2 to 0.8
0