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EN 1.4945 Stainless Steel vs. AISI 305 Stainless Steel

Both EN 1.4945 stainless steel and AISI 305 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 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 1.4945 stainless steel and the bottom bar is AISI 305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
170 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19 to 34
34 to 45
Fatigue Strength, MPa 230 to 350
210 to 280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430 to 460
400 to 470
Tensile Strength: Ultimate (UTS), MPa 640 to 740
580 to 710
Tensile Strength: Yield (Proof), MPa 290 to 550
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 520
410
Maximum Temperature: Mechanical, °C 920
540
Melting Completion (Liquidus), °C 1490
1450
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
16
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.0
3.2
Embodied Energy, MJ/kg 73
45
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 23
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
200 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
130 to 320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
20 to 25
Strength to Weight: Bending, points 20 to 22
20 to 23
Thermal Diffusivity, mm2/s 3.7
4.2
Thermal Shock Resistance, points 14 to 16
13 to 15

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.12
Chromium (Cr), % 15.5 to 17.5
17 to 19
Iron (Fe), % 57.9 to 65.7
65.1 to 72.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 15.5 to 17.5
10.5 to 13
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.3 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0