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ASTM Grade HI Steel vs. EN 1.6982 Stainless Steel

Both ASTM grade HI steel and EN 1.6982 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 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 1.6982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
17
Fatigue Strength, MPa 150
350
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 550
800
Tensile Strength: Yield (Proof), MPa 270
570

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
770
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 23
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
2.4
Embodied Energy, MJ/kg 59
33
Embodied Water, L/kg 200
110

Common Calculations

PREN (Pitting Resistance) 29
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
120
Resilience: Unit (Modulus of Resilience), kJ/m3 180
820
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
25
Thermal Diffusivity, mm2/s 3.9
6.6
Thermal Shock Resistance, points 12
29

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.050
Chromium (Cr), % 26 to 30
12 to 13.5
Iron (Fe), % 46.9 to 59.8
78.7 to 84.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.7
Nickel (Ni), % 14 to 18
3.5 to 5.0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015