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S44535 Stainless Steel vs. ASTM Grade HP Steel

Both S44535 stainless steel and ASTM grade HP steel are iron alloys. They have 59% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S44535 stainless steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
5.1
Fatigue Strength, MPa 210
130
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 450
490
Tensile Strength: Yield (Proof), MPa 290
260

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1430
1370
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
34
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
5.8
Embodied Energy, MJ/kg 34
82
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 22
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
21
Resilience: Unit (Modulus of Resilience), kJ/m3 200
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 5.6
3.2
Thermal Shock Resistance, points 15
11

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0 to 0.030
0.35 to 0.75
Chromium (Cr), % 20 to 24
24 to 28
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 73.2 to 79.6
29.2 to 42.7
Lanthanum (La), % 0.040 to 0.2
0
Manganese (Mn), % 0.3 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.5
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0.030 to 0.2
0