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SAE-AISI T1 Steel vs. AISI 309HCb Stainless Steel

Both SAE-AISI T1 steel and AISI 309HCb stainless steel are iron alloys. They have 66% 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 309HCb 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
78
Tensile Strength: Ultimate (UTS), MPa 770 to 2130
590

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Melting Completion (Liquidus), °C 1810
1420
Melting Onset (Solidus), °C 1750
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 45
23
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
4.1
Embodied Energy, MJ/kg 130
59
Embodied Water, L/kg 90
170

Common Calculations

PREN (Pitting Resistance) 34
23
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23 to 64
21
Strength to Weight: Bending, points 20 to 40
20
Thermal Diffusivity, mm2/s 5.2
4.0
Thermal Shock Resistance, points 23 to 64
13

Alloy Composition

Carbon (C), % 0.65 to 0.8
0.040 to 0.1
Chromium (Cr), % 3.8 to 4.5
22 to 24
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.2 to 77.2
56 to 66
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Nickel (Ni), % 0 to 0.3
12 to 16
Niobium (Nb), % 0
0 to 1.1
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