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EN 1.4823 Stainless Steel vs. SAE-AISI H21 Steel

Both EN 1.4823 stainless steel and SAE-AISI H21 steel are iron alloys. They have 70% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4823 stainless steel and the bottom bar is SAE-AISI H21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 620
720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1400
1630
Melting Onset (Solidus), °C 1360
1580
Specific Heat Capacity, J/kg-K 490
440
Thermal Conductivity, W/m-K 17
27
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 16
23
Density, g/cm3 7.6
8.5
Embodied Carbon, kg CO2/kg material 3.0
4.5
Embodied Energy, MJ/kg 43
68
Embodied Water, L/kg 170
72

Common Calculations

PREN (Pitting Resistance) 27
19
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
23
Strength to Weight: Axial, points 23
23 to 58
Strength to Weight: Bending, points 21
21 to 38
Thermal Diffusivity, mm2/s 4.5
7.1
Thermal Shock Resistance, points 17
24 to 59

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.28 to 0.36
Chromium (Cr), % 25 to 28
3.0 to 3.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 60.9 to 70.7
87.6 to 93.8
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 3.0 to 6.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0.15 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
8.5 to 10
Vanadium (V), % 0
0.3 to 0.6