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S41050 Stainless Steel vs. ASTM Grade HP Steel

Both S41050 stainless steel and ASTM grade HP steel are iron alloys. They have 49% 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 S41050 stainless steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
5.1
Fatigue Strength, MPa 160
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 470
490
Tensile Strength: Yield (Proof), MPa 230
260

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 720
1100
Melting Completion (Liquidus), °C 1440
1370
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
12
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
5.8
Embodied Energy, MJ/kg 27
82
Embodied Water, L/kg 97
220

Common Calculations

PREN (Pitting Resistance) 12
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98
21
Resilience: Unit (Modulus of Resilience), kJ/m3 140
170
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 7.2
3.2
Thermal Shock Resistance, points 17
11

Alloy Composition

Carbon (C), % 0 to 0.040
0.35 to 0.75
Chromium (Cr), % 10.5 to 12.5
24 to 28
Iron (Fe), % 84.2 to 88.9
29.2 to 42.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0.6 to 1.1
33 to 37
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040