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EN 1.4318 Stainless Steel vs. EN 1.4595 Stainless Steel

Both EN 1.4318 stainless steel and EN 1.4595 stainless steel are iron alloys. They have 90% 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 1.4318 stainless steel and the bottom bar is EN 1.4595 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
29
Fatigue Strength, MPa 340
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 520
310
Tensile Strength: Ultimate (UTS), MPa 740
470
Tensile Strength: Yield (Proof), MPa 380
250

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 910
810
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.4
Embodied Energy, MJ/kg 39
34
Embodied Water, L/kg 130
110

Common Calculations

PREN (Pitting Resistance) 20
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
110
Resilience: Unit (Modulus of Resilience), kJ/m3 360
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
17
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 4.0
8.1
Thermal Shock Resistance, points 17
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 16.5 to 18.5
14 to 16
Iron (Fe), % 70.2 to 77.4
81.3 to 85.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 6.0 to 8.0
0
Niobium (Nb), % 0
0.2 to 0.6
Nitrogen (N), % 0.1 to 0.2
0 to 0.020
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015