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EN 1.4938 Stainless Steel vs. EN 1.4313 Stainless Steel

Both EN 1.4938 stainless steel and EN 1.4313 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 (1, 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 1.4313 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
12 to 17
Fatigue Strength, MPa 390 to 520
340 to 510
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 540 to 630
460 to 600
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
750 to 1000
Tensile Strength: Yield (Proof), MPa 640 to 870
580 to 910

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 750
780
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 30
25
Thermal Expansion, µm/m-K 11
10

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 10
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.4
Embodied Energy, MJ/kg 47
34
Embodied Water, L/kg 110
110

Common Calculations

PREN (Pitting Resistance) 18
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
870 to 2100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
27 to 36
Strength to Weight: Bending, points 26 to 29
23 to 28
Thermal Diffusivity, mm2/s 8.1
6.7
Thermal Shock Resistance, points 30 to 35
27 to 36

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.050
Chromium (Cr), % 11 to 12.5
12 to 14
Iron (Fe), % 80.5 to 84.8
78.5 to 84.2
Manganese (Mn), % 0.4 to 0.9
0 to 1.5
Molybdenum (Mo), % 1.5 to 2.0
0.3 to 0.7
Nickel (Ni), % 2.0 to 3.0
3.5 to 4.5
Nitrogen (N), % 0.020 to 0.040
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0.25 to 0.4
0

Comparable Variants