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EN 1.4971 Stainless Steel vs. ASTM Grade HE Steel

Both EN 1.4971 stainless steel and ASTM grade HE steel are iron alloys. They have 63% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is ASTM grade HE steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
10
Fatigue Strength, MPa 270
160
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 800
670
Tensile Strength: Yield (Proof), MPa 340
310

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 570
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 70
19
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
3.5
Embodied Energy, MJ/kg 110
50
Embodied Water, L/kg 300
190

Common Calculations

PREN (Pitting Resistance) 38
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
56
Resilience: Unit (Modulus of Resilience), kJ/m3 280
240
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.4
3.6
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.2 to 0.5
Chromium (Cr), % 20 to 22.5
26 to 30
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
53.9 to 65.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.5
Nickel (Ni), % 19 to 21
8.0 to 11
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040
Tungsten (W), % 2.0 to 3.0
0