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EN 1.4658 Stainless Steel vs. EN 1.4901 Stainless Steel

Both EN 1.4658 stainless steel and EN 1.4901 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 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 1.4658 stainless steel and the bottom bar is EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 28
19
Fatigue Strength, MPa 530
310
Impact Strength: V-Notched Charpy, J 110
38
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 580
460
Tensile Strength: Ultimate (UTS), MPa 900
740
Tensile Strength: Yield (Proof), MPa 730
490

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Corrosion, °C 460
380
Maximum Temperature: Mechanical, °C 1100
650
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.5
2.8
Embodied Energy, MJ/kg 61
40
Embodied Water, L/kg 200
89

Common Calculations

PREN (Pitting Resistance) 49
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
620
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
26
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 4.3
6.9
Thermal Shock Resistance, points 24
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0 to 0.030
0.070 to 0.13
Chromium (Cr), % 26 to 29
8.5 to 9.5
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
85.8 to 89.1
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 4.0 to 5.0
0.3 to 0.6
Nickel (Ni), % 5.5 to 9.5
0 to 0.4
Niobium (Nb), % 0
0.040 to 0.090
Nitrogen (N), % 0.3 to 0.5
0.030 to 0.070
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.0
Vanadium (V), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010