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ASTM Grade HI Steel vs. EN 1.4646 Stainless Steel

Both ASTM grade HI steel and EN 1.4646 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 150
340
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 550
750
Tensile Strength: Yield (Proof), MPa 270
430

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
910
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1350
1340
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.1
2.8
Embodied Energy, MJ/kg 59
41
Embodied Water, L/kg 200
160

Common Calculations

PREN (Pitting Resistance) 29
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
220
Resilience: Unit (Modulus of Resilience), kJ/m3 180
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.020 to 0.1
Chromium (Cr), % 26 to 30
17 to 19
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 46.9 to 59.8
59 to 67.3
Manganese (Mn), % 0 to 2.0
10.5 to 12.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 14 to 18
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015