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AISI 414 Stainless Steel vs. ASTM Grade HP Steel

Both AISI 414 stainless steel and ASTM grade HP steel are iron alloys. They have 51% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
5.1
Fatigue Strength, MPa 430 to 480
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 900 to 960
490
Tensile Strength: Yield (Proof), MPa 700 to 790
260

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1440
1370
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
5.8
Embodied Energy, MJ/kg 29
82
Embodied Water, L/kg 100
220

Common Calculations

PREN (Pitting Resistance) 13
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1260 to 1590
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 34
17
Strength to Weight: Bending, points 27 to 28
17
Thermal Diffusivity, mm2/s 6.7
3.2
Thermal Shock Resistance, points 33 to 35
11

Alloy Composition

Carbon (C), % 0 to 0.15
0.35 to 0.75
Chromium (Cr), % 11.5 to 13.5
24 to 28
Iron (Fe), % 81.8 to 87.3
29.2 to 42.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 1.3 to 2.5
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040