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EN 1.4938 Stainless Steel vs. EN 1.4527 Stainless Steel

Both EN 1.4938 stainless steel and EN 1.4527 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 stainless steel and the bottom bar is EN 1.4527 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
40
Fatigue Strength, MPa 390 to 520
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
480
Tensile Strength: Yield (Proof), MPa 640 to 870
190

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 10
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.3
5.6
Embodied Energy, MJ/kg 47
78
Embodied Water, L/kg 110
210

Common Calculations

PREN (Pitting Resistance) 18
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 37
17
Strength to Weight: Bending, points 26 to 29
17
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 30 to 35
12

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.060
Chromium (Cr), % 11 to 12.5
19 to 22
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 80.5 to 84.8
37.4 to 48.5
Manganese (Mn), % 0.4 to 0.9
0 to 1.5
Molybdenum (Mo), % 1.5 to 2.0
2.0 to 3.0
Nickel (Ni), % 2.0 to 3.0
27.5 to 30.5
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.25 to 0.4
0