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EN 1.4938 Stainless Steel vs. EN 1.7383 Steel

Both EN 1.4938 stainless steel and EN 1.7383 steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 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 1.4938 stainless steel and the bottom bar is EN 1.7383 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 17
20 to 23
Fatigue Strength, MPa 390 to 520
210 to 270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Shear Strength, MPa 540 to 630
350 to 380
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
560 to 610
Tensile Strength: Yield (Proof), MPa 640 to 870
300 to 400

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 750
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 30
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
1.8
Embodied Energy, MJ/kg 47
23
Embodied Water, L/kg 110
59

Common Calculations

PREN (Pitting Resistance) 18
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
240 to 420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 37
20 to 22
Strength to Weight: Bending, points 26 to 29
19 to 20
Thermal Diffusivity, mm2/s 8.1
11
Thermal Shock Resistance, points 30 to 35
16 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.080 to 0.15
0.080 to 0.15
Chromium (Cr), % 11 to 12.5
2.0 to 2.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 80.5 to 84.8
94.3 to 96.6
Manganese (Mn), % 0.4 to 0.9
0.4 to 0.8
Molybdenum (Mo), % 1.5 to 2.0
0.9 to 1.1
Nickel (Ni), % 2.0 to 3.0
0 to 0.3
Nitrogen (N), % 0.020 to 0.040
0
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 0.010
Vanadium (V), % 0.25 to 0.4
0

Comparable Variants