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EN 1.4958 Stainless Steel vs. AISI 201LN Stainless Steel

Both EN 1.4958 stainless steel and AISI 201LN stainless steel are iron alloys. They have 68% 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 AISI 201LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
25 to 51
Fatigue Strength, MPa 170
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430
530 to 680
Tensile Strength: Ultimate (UTS), MPa 630
740 to 1060
Tensile Strength: Yield (Proof), MPa 190
350 to 770

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 500
410
Maximum Temperature: Mechanical, °C 1090
880
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
12
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.3
2.6
Embodied Energy, MJ/kg 75
38
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 21
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
230 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 95
310 to 1520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
27 to 38
Strength to Weight: Bending, points 20
24 to 30
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 15
16 to 23

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0 to 0.030
Chromium (Cr), % 19 to 22
16 to 17.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 1.0
Iron (Fe), % 41.1 to 50.6
67.9 to 73.5
Manganese (Mn), % 0 to 1.5
6.4 to 7.5
Nickel (Ni), % 30 to 32.5
4.0 to 5.0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0.1 to 0.25
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0.2 to 0.5
0