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EN 1.4634 Stainless Steel vs. EN 1.4923 Stainless Steel

Both EN 1.4634 stainless steel and EN 1.4923 stainless steel are iron alloys. They have a moderately high 91% 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 1.4634 stainless steel and the bottom bar is EN 1.4923 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
12 to 21
Fatigue Strength, MPa 180
300 to 440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 340
540 to 590
Tensile Strength: Ultimate (UTS), MPa 540
870 to 980
Tensile Strength: Yield (Proof), MPa 280
470 to 780

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 500
380
Maximum Temperature: Mechanical, °C 900
740
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
24
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
8.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
2.9
Embodied Energy, MJ/kg 42
41
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 19
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 200
570 to 1580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
31 to 35
Strength to Weight: Bending, points 19
26 to 28
Thermal Diffusivity, mm2/s 5.8
6.5
Thermal Shock Resistance, points 19
30 to 34

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
0
Carbon (C), % 0 to 0.030
0.18 to 0.24
Chromium (Cr), % 17.5 to 18.5
11 to 12.5
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 74.9 to 81.8
83.5 to 87.1
Manganese (Mn), % 0 to 1.0
0.4 to 0.9
Molybdenum (Mo), % 0 to 0.5
0.8 to 1.2
Nickel (Ni), % 0 to 0.5
0.3 to 0.8
Niobium (Nb), % 0.3 to 1.0
0
Phosphorus (P), % 0 to 0.050
0 to 0.025
Silicon (Si), % 0.2 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.015
Vanadium (V), % 0
0.25 to 0.35