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ASTM Grade HP Steel vs. AISI 201L Stainless Steel

Both ASTM grade HP steel and AISI 201L 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 (3, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is AISI 201L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.1
22 to 46
Fatigue Strength, MPa 130
270 to 530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 490
740 to 1040
Tensile Strength: Yield (Proof), MPa 260
290 to 790

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
880
Melting Completion (Liquidus), °C 1370
1410
Melting Onset (Solidus), °C 1330
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.8
2.6
Embodied Energy, MJ/kg 82
38
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 27
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 170
220 to 1570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
27 to 37
Strength to Weight: Bending, points 17
24 to 30
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 11
16 to 23

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.030
Chromium (Cr), % 24 to 28
16 to 18
Iron (Fe), % 29.2 to 42.7
67.9 to 75
Manganese (Mn), % 0 to 2.0
5.5 to 7.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.5
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030