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N08811 Stainless Steel vs. ASTM Grade HP Steel

Both N08811 stainless steel and ASTM grade HP steel are iron alloys. They have a moderately high 91% 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 N08811 stainless steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33
5.1
Fatigue Strength, MPa 150
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 510
490
Tensile Strength: Yield (Proof), MPa 190
260

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 490
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1390
1370
Melting Onset (Solidus), °C 1360
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
34
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.3
5.8
Embodied Energy, MJ/kg 76
82
Embodied Water, L/kg 200
220

Common Calculations

PREN (Pitting Resistance) 21
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
21
Resilience: Unit (Modulus of Resilience), kJ/m3 94
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
17
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 3.0
3.2
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0.060 to 0.1
0.35 to 0.75
Chromium (Cr), % 19 to 23
24 to 28
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 39.5 to 50.6
29.2 to 42.7
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 30 to 35
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 0.015
0 to 0.040
Titanium (Ti), % 0.15 to 0.6
0