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EN 1.3963 Alloy vs. EN 1.4988 Stainless Steel

Both EN 1.3963 alloy and EN 1.4988 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.3963 alloy and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 29
34
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 290
430
Tensile Strength: Ultimate (UTS), MPa 440
640
Tensile Strength: Yield (Proof), MPa 310
290

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 1.6
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
23
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 4.8
6.0
Embodied Energy, MJ/kg 66
89
Embodied Water, L/kg 110
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 260
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
23
Strength to Weight: Bending, points 16
21
Thermal Shock Resistance, points 110
14

Alloy Composition

Carbon (C), % 0 to 0.050
0.040 to 0.1
Chromium (Cr), % 0 to 0.25
15.5 to 17.5
Iron (Fe), % 60.5 to 64.9
62.1 to 69.5
Manganese (Mn), % 0 to 0.5
0 to 1.5
Molybdenum (Mo), % 0 to 1.0
1.1 to 1.5
Nickel (Ni), % 35 to 37
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0.3 to 0.6
Sulfur (S), % 0.1 to 0.2
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85