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SAE-AISI T1 Steel vs. AISI 347 Stainless Steel

Both SAE-AISI T1 steel and AISI 347 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T1 steel and the bottom bar is AISI 347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
610 to 690

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Melting Completion (Liquidus), °C 1810
1430
Melting Onset (Solidus), °C 1750
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 20
16
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 45
19
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
3.6
Embodied Energy, MJ/kg 130
52
Embodied Water, L/kg 90
150

Common Calculations

PREN (Pitting Resistance) 34
18
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
22 to 25
Strength to Weight: Bending, points 20 to 40
20 to 22
Thermal Diffusivity, mm2/s 5.2
4.3
Thermal Shock Resistance, points 23 to 64
13 to 15

Alloy Composition

Carbon (C), % 0.65 to 0.8
0 to 0.080
Chromium (Cr), % 3.8 to 4.5
17 to 19
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
64.1 to 74
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Nickel (Ni), % 0 to 0.3
9.0 to 13
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 17.3 to 18.8
0
Vanadium (V), % 0.9 to 1.3
0