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AISI 348 Stainless Steel vs. SAE-AISI 1151 Steel

Both AISI 348 stainless steel and SAE-AISI 1151 steel are iron alloys. They have 70% of their average alloy composition in common. There are 32 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 AISI 348 stainless steel and the bottom bar is SAE-AISI 1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
11 to 17
Fatigue Strength, MPa 200
260 to 410
Poisson's Ratio 0.28
0.29
Reduction in Area, % 53
34 to 40
Shear Modulus, GPa 77
72
Shear Strength, MPa 400
430 to 480
Tensile Strength: Ultimate (UTS), MPa 580
710 to 800
Tensile Strength: Yield (Proof), MPa 230
390 to 660

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.4
Embodied Energy, MJ/kg 54
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
86 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 140
400 to 1170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
25 to 28
Strength to Weight: Bending, points 20
22 to 24
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 13
22 to 25

Alloy Composition

Carbon (C), % 0 to 0.080
0.48 to 0.55
Chromium (Cr), % 17 to 19
0
Cobalt (Co), % 0 to 0.2
0
Iron (Fe), % 63.8 to 74
98.3 to 98.7
Manganese (Mn), % 0 to 2.0
0.7 to 1.0
Nickel (Ni), % 9.0 to 13
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13
Tantalum (Ta), % 0 to 0.1
0