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AISI 439 Stainless Steel vs. EN 1.3975 Stainless Steel

Both AISI 439 stainless steel and EN 1.3975 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 439 stainless steel and the bottom bar is EN 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
27
Fatigue Strength, MPa 170
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 490
660
Tensile Strength: Yield (Proof), MPa 250
320

Thermal Properties

Latent Heat of Fusion, J/g 280
340
Maximum Temperature: Corrosion, °C 530
410
Maximum Temperature: Mechanical, °C 890
910
Melting Completion (Liquidus), °C 1510
1360
Melting Onset (Solidus), °C 1430
1320
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
15
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 2.3
3.3
Embodied Energy, MJ/kg 34
47
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
150
Resilience: Unit (Modulus of Resilience), kJ/m3 160
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 18
22
Thermal Shock Resistance, points 16
15

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17 to 19
16 to 18
Iron (Fe), % 77.1 to 82.8
58.2 to 65.4
Manganese (Mn), % 0 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.5
8.0 to 9.0
Nitrogen (N), % 0 to 0.030
0.080 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 1.1
0