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AISI 348H Stainless Steel vs. SAE-AISI 1070 Steel

Both AISI 348H stainless steel and SAE-AISI 1070 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 348H stainless steel and the bottom bar is SAE-AISI 1070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
10 to 13
Fatigue Strength, MPa 200
270 to 350
Poisson's Ratio 0.28
0.29
Reduction in Area, % 51
34 to 51
Shear Modulus, GPa 77
72
Shear Strength, MPa 400
380 to 460
Tensile Strength: Ultimate (UTS), MPa 580
640 to 760
Tensile Strength: Yield (Proof), MPa 230
420 to 560

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 15
50
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 20
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.4
Embodied Energy, MJ/kg 56
19
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
59 to 86
Resilience: Unit (Modulus of Resilience), kJ/m3 140
470 to 850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
23 to 27
Strength to Weight: Bending, points 20
21 to 24
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 13
21 to 25

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.65 to 0.75
Chromium (Cr), % 17 to 19
0
Cobalt (Co), % 0 to 0.2
0
Iron (Fe), % 63.8 to 73.6
98.3 to 98.8
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Nickel (Ni), % 9.0 to 13
0
Niobium (Nb), % 0.32 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 to 0.050
Tantalum (Ta), % 0 to 0.1
0