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ASTM Grade HI Steel vs. EN 1.4669 Stainless Steel

Both ASTM grade HI steel and EN 1.4669 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HI steel and the bottom bar is EN 1.4669 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 150
330
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 550
780
Tensile Strength: Yield (Proof), MPa 270
450

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1030
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.1
2.6
Embodied Energy, MJ/kg 59
38
Embodied Water, L/kg 200
160

Common Calculations

PREN (Pitting Resistance) 29
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
190
Resilience: Unit (Modulus of Resilience), kJ/m3 180
510
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
28
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.045
Chromium (Cr), % 26 to 30
21.5 to 24
Copper (Cu), % 0
1.6 to 3.0
Iron (Fe), % 46.9 to 59.8
65.2 to 74.8
Manganese (Mn), % 0 to 2.0
1.0 to 3.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 14 to 18
1.0 to 3.0
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030