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ASTM Grade HP Steel vs. EN 1.4823 Stainless Steel

Both ASTM grade HP steel and EN 1.4823 stainless steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 69% of their average alloy composition in common. There are 29 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 EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.1
3.4
Fatigue Strength, MPa 130
130
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 490
620
Tensile Strength: Yield (Proof), MPa 260
290

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1370
1400
Melting Onset (Solidus), °C 1330
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
16
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 5.8
3.0
Embodied Energy, MJ/kg 82
43
Embodied Water, L/kg 220
170

Common Calculations

PREN (Pitting Resistance) 27
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
17
Resilience: Unit (Modulus of Resilience), kJ/m3 170
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 3.2
4.5
Thermal Shock Resistance, points 11
17

Alloy Composition

Carbon (C), % 0.35 to 0.75
0.3 to 0.5
Chromium (Cr), % 24 to 28
25 to 28
Iron (Fe), % 29.2 to 42.7
60.9 to 70.7
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 33 to 37
3.0 to 6.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.5
1.0 to 2.5
Sulfur (S), % 0 to 0.040
0 to 0.030