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ASTM Grade HE Steel vs. EN 1.4347 Stainless Steel

Both ASTM grade HE steel and EN 1.4347 stainless steel are iron alloys. They have a moderately high 94% 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 HE steel and the bottom bar is EN 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 10
23
Fatigue Strength, MPa 160
320
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 670
660
Tensile Strength: Yield (Proof), MPa 310
480

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 19
16
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.5
3.1
Embodied Energy, MJ/kg 50
44
Embodied Water, L/kg 190
170

Common Calculations

PREN (Pitting Resistance) 29
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
140
Resilience: Unit (Modulus of Resilience), kJ/m3 240
570
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 3.6
4.0
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.050
Chromium (Cr), % 26 to 30
25 to 27
Iron (Fe), % 53.9 to 65.8
62.2 to 69.4
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 11
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.020