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EN 1.4542 Stainless Steel vs. EN 1.4031 Stainless Steel

Both EN 1.4542 stainless steel and EN 1.4031 stainless steel are iron alloys. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4542 stainless steel and the bottom bar is EN 1.4031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 20
11 to 13
Fatigue Strength, MPa 370 to 640
220 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 550 to 860
400 to 540
Tensile Strength: Ultimate (UTS), MPa 880 to 1470
670 to 900
Tensile Strength: Yield (Proof), MPa 580 to 1300
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 860
770
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
30
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.7
1.9
Embodied Energy, MJ/kg 39
27
Embodied Water, L/kg 130
100

Common Calculations

PREN (Pitting Resistance) 17
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 62 to 160
77 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4360
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 52
24 to 32
Strength to Weight: Bending, points 26 to 37
22 to 27
Thermal Diffusivity, mm2/s 4.3
8.1
Thermal Shock Resistance, points 29 to 49
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.070
0.36 to 0.42
Chromium (Cr), % 15 to 17
12.5 to 14.5
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 69.6 to 79
83 to 87.1
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 3.0 to 5.0
0
Niobium (Nb), % 0 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015