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EN 1.4958 Stainless Steel vs. ASTM Grade HE Steel

Both EN 1.4958 stainless steel and ASTM grade HE steel are iron alloys. They have 77% 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 EN 1.4958 stainless steel and the bottom bar is ASTM grade HE steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
10
Fatigue Strength, MPa 170
160
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 630
670
Tensile Strength: Yield (Proof), MPa 190
310

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 500
450
Maximum Temperature: Mechanical, °C 1090
1100
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1350
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 12
14
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
19
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.3
3.5
Embodied Energy, MJ/kg 75
50
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 21
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
56
Resilience: Unit (Modulus of Resilience), kJ/m3 95
240
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.2
3.6
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0.2 to 0.5
Chromium (Cr), % 19 to 22
26 to 30
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 41.1 to 50.6
53.9 to 65.8
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 30 to 32.5
8.0 to 11
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0.2 to 0.5
0