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EN 1.4539 Stainless Steel vs. AISI 312 Stainless Steel

Both EN 1.4539 stainless steel and AISI 312 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4539 stainless steel and the bottom bar is AISI 312 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
28
Fatigue Strength, MPa 220
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Shear Strength, MPa 430
510
Tensile Strength: Ultimate (UTS), MPa 630
780
Tensile Strength: Yield (Proof), MPa 260
510

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 31
17
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.7
3.4
Embodied Energy, MJ/kg 78
48
Embodied Water, L/kg 200
170

Common Calculations

PREN (Pitting Resistance) 36
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
190
Resilience: Unit (Modulus of Resilience), kJ/m3 160
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
28
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 3.2
4.3
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19 to 21
24 to 26
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 43.1 to 51.8
62.2 to 69.2
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
1.2 to 2.0
Nickel (Ni), % 24 to 26
5.5 to 6.5
Nitrogen (N), % 0 to 0.15
0.14 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030