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EN 1.4859 Stainless Steel vs. ASTM Grade HE Steel

Both EN 1.4859 stainless steel and ASTM grade HE steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4859 stainless steel and the bottom bar is ASTM grade HE steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
10
Fatigue Strength, MPa 140
160
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 490
670
Tensile Strength: Yield (Proof), MPa 210
310

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 560
450
Maximum Temperature: Mechanical, °C 1050
1100
Melting Completion (Liquidus), °C 1410
1400
Melting Onset (Solidus), °C 1360
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
19
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.2
3.5
Embodied Energy, MJ/kg 88
50
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 21
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
56
Resilience: Unit (Modulus of Resilience), kJ/m3 110
240
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 3.4
3.6
Thermal Shock Resistance, points 11
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.2 to 0.5
Chromium (Cr), % 19 to 21
26 to 30
Iron (Fe), % 40.3 to 49
53.9 to 65.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 31 to 33
8.0 to 11
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040