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S44635 Stainless Steel vs. ASTM Grade HP Steel

Both S44635 stainless steel and ASTM grade HP steel are iron alloys. They have 66% 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 S44635 stainless steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
140
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
5.1
Fatigue Strength, MPa 390
130
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 710
490
Tensile Strength: Yield (Proof), MPa 580
260

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 610
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 22
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.4
5.8
Embodied Energy, MJ/kg 62
82
Embodied Water, L/kg 170
220

Common Calculations

PREN (Pitting Resistance) 39
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
21
Resilience: Unit (Modulus of Resilience), kJ/m3 810
170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 4.4
3.2
Thermal Shock Resistance, points 23
11

Alloy Composition

Carbon (C), % 0 to 0.025
0.35 to 0.75
Chromium (Cr), % 24.5 to 26
24 to 28
Iron (Fe), % 61.5 to 68.5
29.2 to 42.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.5
0 to 0.5
Nickel (Ni), % 3.5 to 4.5
33 to 37
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 0.2 to 0.8
0