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EN 1.4923 Stainless Steel vs. EN 1.4938 Stainless Steel

Both EN 1.4923 stainless steel and EN 1.4938 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 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 1.4923 stainless steel and the bottom bar is EN 1.4938 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
16 to 17
Fatigue Strength, MPa 300 to 440
390 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 540 to 590
540 to 630
Tensile Strength: Ultimate (UTS), MPa 870 to 980
870 to 1030
Tensile Strength: Yield (Proof), MPa 470 to 780
640 to 870

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 380
390
Maximum Temperature: Mechanical, °C 740
750
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 24
30
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
3.3
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 100
110

Common Calculations

PREN (Pitting Resistance) 15
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 1580
1050 to 1920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 35
31 to 37
Strength to Weight: Bending, points 26 to 28
26 to 29
Thermal Diffusivity, mm2/s 6.5
8.1
Thermal Shock Resistance, points 30 to 34
30 to 35

Alloy Composition

Carbon (C), % 0.18 to 0.24
0.080 to 0.15
Chromium (Cr), % 11 to 12.5
11 to 12.5
Iron (Fe), % 83.5 to 87.1
80.5 to 84.8
Manganese (Mn), % 0.4 to 0.9
0.4 to 0.9
Molybdenum (Mo), % 0.8 to 1.2
1.5 to 2.0
Nickel (Ni), % 0.3 to 0.8
2.0 to 3.0
Nitrogen (N), % 0
0.020 to 0.040
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0.25 to 0.35
0.25 to 0.4

Comparable Variants