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SAE-AISI H43 Steel vs. AISI 309HCb Stainless Steel

Both SAE-AISI H43 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 H43 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 77
78
Tensile Strength: Ultimate (UTS), MPa 710 to 2140
590

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1530
1420
Melting Onset (Solidus), °C 1480
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
23
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 8.2
4.1
Embodied Energy, MJ/kg 120
59
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 31
23
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 75
21
Strength to Weight: Bending, points 22 to 46
20
Thermal Diffusivity, mm2/s 8.3
4.0
Thermal Shock Resistance, points 21 to 62
13

Alloy Composition

Carbon (C), % 0.5 to 0.65
0.040 to 0.1
Chromium (Cr), % 3.8 to 4.5
22 to 24
Iron (Fe), % 83.2 to 85.9
56 to 66
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 7.8 to 8.5
0
Nickel (Ni), % 0
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 0.45
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 1.8 to 2.2
0