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AISI 414 Stainless Steel vs. ASTM Grade HH Steel

Both AISI 414 stainless steel and ASTM grade HH steel are iron alloys. They have 74% of their average alloy composition in common. There are 31 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 414 stainless steel and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
11
Fatigue Strength, MPa 430 to 480
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 900 to 960
580
Tensile Strength: Yield (Proof), MPa 700 to 790
270

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
14
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.1
3.7
Embodied Energy, MJ/kg 29
53
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 13
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
53
Resilience: Unit (Modulus of Resilience), kJ/m3 1260 to 1590
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 34
21
Strength to Weight: Bending, points 27 to 28
20
Thermal Diffusivity, mm2/s 6.7
3.8
Thermal Shock Resistance, points 33 to 35
12

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.5
Chromium (Cr), % 11.5 to 13.5
24 to 28
Iron (Fe), % 81.8 to 87.3
52.9 to 64.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 1.3 to 2.5
11 to 14
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040