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ASTM Grade HP Steel vs. S44536 Stainless Steel

Both ASTM grade HP steel and S44536 stainless 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 ASTM grade HP steel and the bottom bar is S44536 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.1
22
Fatigue Strength, MPa 130
190
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 490
460
Tensile Strength: Yield (Proof), MPa 260
280

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 440
560
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1370
1440
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
21
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 34
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.8
2.8
Embodied Energy, MJ/kg 82
41
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 27
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
89
Resilience: Unit (Modulus of Resilience), kJ/m3 170
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 3.2
5.6
Thermal Shock Resistance, points 11
16

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.015
Chromium (Cr), % 24 to 28
20 to 23
Iron (Fe), % 29.2 to 42.7
72.8 to 80
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.8
Nitrogen (N), % 0
0 to 0.015
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
Titanium (Ti), % 0
0 to 0.8