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ASTM Grade HP Steel vs. AISI 414 Stainless Steel

Both ASTM grade HP steel and AISI 414 stainless 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 ASTM grade HP steel and the bottom bar is AISI 414 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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