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EN 1.4958 Stainless Steel vs. AISI 316 Stainless Steel

Both EN 1.4958 stainless steel and AISI 316 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 stainless steel and the bottom bar is AISI 316 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
8.0 to 55
Fatigue Strength, MPa 170
210 to 430
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 430
350 to 690
Tensile Strength: Ultimate (UTS), MPa 630
520 to 1180
Tensile Strength: Yield (Proof), MPa 190
230 to 850

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 500
410
Maximum Temperature: Mechanical, °C 1090
590
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 30
19
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.3
3.9
Embodied Energy, MJ/kg 75
53
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 21
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
85 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 95
130 to 1820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
18 to 41
Strength to Weight: Bending, points 20
18 to 31
Thermal Diffusivity, mm2/s 3.2
4.1
Thermal Shock Resistance, points 15
11 to 26

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0 to 0.080
Chromium (Cr), % 19 to 22
16 to 18
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 41.1 to 50.6
62 to 72
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 30 to 32.5
10 to 14
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0 to 0.1
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.2 to 0.5
0