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EN 1.4938 +A Steel vs. Annealed K93050 Alloy

Both EN 1.4938 +A steel and annealed K93050 alloy are iron alloys. Both are furnished in the annealed condition. They have 66% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 +A steel and the bottom bar is annealed K93050 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 870
500
Tensile Strength: Yield (Proof), MPa 640
300

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.3
4.7
Embodied Energy, MJ/kg 47
65
Embodied Water, L/kg 110
120

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1050
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 31
17
Strength to Weight: Bending, points 26
17
Thermal Shock Resistance, points 30
16

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.15
Chromium (Cr), % 11 to 12.5
0 to 0.25
Cobalt (Co), % 0
0 to 0.5
Iron (Fe), % 80.5 to 84.8
61.4 to 63.9
Manganese (Mn), % 0.4 to 0.9
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
36
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Selenium (Se), % 0
0.15 to 0.3
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0.25 to 0.4
0