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EN 1.4903 Stainless Steel vs. AISI 316 Stainless Steel

Both EN 1.4903 stainless steel and AISI 316 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4903 stainless steel and the bottom bar is AISI 316 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
8.0 to 55
Fatigue Strength, MPa 320 to 330
210 to 430
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
78
Shear Strength, MPa 420
350 to 690
Tensile Strength: Ultimate (UTS), MPa 670 to 680
520 to 1180
Tensile Strength: Yield (Proof), MPa 500
230 to 850

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 380
410
Maximum Temperature: Mechanical, °C 650
590
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
3.9
Embodied Energy, MJ/kg 36
53
Embodied Water, L/kg 88
150

Common Calculations

PREN (Pitting Resistance) 13
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
85 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 650
130 to 1820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
18 to 41
Strength to Weight: Bending, points 22
18 to 31
Thermal Diffusivity, mm2/s 7.0
4.1
Thermal Shock Resistance, points 23
11 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0 to 0.080
Chromium (Cr), % 8.0 to 9.5
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.1 to 90.5
62 to 72
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.85 to 1.1
2.0 to 3.0
Nickel (Ni), % 0 to 0.4
10 to 14
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.18 to 0.25
0