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EN 1.4371 Stainless Steel vs. EN 1.4658 Stainless Steel

Both EN 1.4371 stainless steel and EN 1.4658 stainless steel are iron alloys. They have 80% 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 1.4371 stainless steel and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45 to 51
28
Fatigue Strength, MPa 290 to 340
530
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 520 to 540
580
Tensile Strength: Ultimate (UTS), MPa 740 to 750
900
Tensile Strength: Yield (Proof), MPa 320 to 340
730

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
4.5
Embodied Energy, MJ/kg 38
61
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 20
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 310
240
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 300
1280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
32
Strength to Weight: Bending, points 24
26
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16
24

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 17.5
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0 to 1.0
0 to 1.0
Iron (Fe), % 66.7 to 74.4
50.9 to 63.7
Manganese (Mn), % 6.0 to 8.0
0 to 1.5
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 3.5 to 5.5
5.5 to 9.5
Nitrogen (N), % 0.15 to 0.25
0.3 to 0.5
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010