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EN 1.4958 Stainless Steel vs. EN 1.4872 Stainless Steel

Both EN 1.4958 stainless steel and EN 1.4872 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 75% of their average alloy composition in common. There are 32 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 1.4958 stainless steel and the bottom bar is EN 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
28
Fatigue Strength, MPa 170
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 430
620
Tensile Strength: Ultimate (UTS), MPa 630
950
Tensile Strength: Yield (Proof), MPa 190
560

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 500
440
Maximum Temperature: Mechanical, °C 1090
1150
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1350
1340
Specific Heat Capacity, J/kg-K 480
490
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
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 8.0
7.6
Embodied Carbon, kg CO2/kg material 5.3
3.3
Embodied Energy, MJ/kg 75
47
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 21
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
230
Resilience: Unit (Modulus of Resilience), kJ/m3 95
780
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 22
35
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 3.2
3.9
Thermal Shock Resistance, points 15
21

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0.2 to 0.3
Chromium (Cr), % 19 to 22
24 to 26
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 41.1 to 50.6
54.2 to 61.6
Manganese (Mn), % 0 to 1.5
8.0 to 10
Nickel (Ni), % 30 to 32.5
6.0 to 8.0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0.2 to 0.4
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0.2 to 0.5
0