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EN 1.4571 Stainless Steel vs. S33425 Stainless Steel

Both EN 1.4571 stainless steel and S33425 stainless steel are iron alloys. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4571 stainless steel and the bottom bar is S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 40
45
Fatigue Strength, MPa 200 to 330
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
79
Shear Strength, MPa 410 to 550
400
Tensile Strength: Ultimate (UTS), MPa 600 to 900
580
Tensile Strength: Yield (Proof), MPa 230 to 570
230

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 480
500
Maximum Temperature: Mechanical, °C 950
1100
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
27
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.9
5.1
Embodied Energy, MJ/kg 54
71
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 25
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
210
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 820
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
20
Strength to Weight: Bending, points 20 to 26
19
Thermal Diffusivity, mm2/s 4.0
3.7
Thermal Shock Resistance, points 13 to 20
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 16.5 to 18.5
21 to 23
Iron (Fe), % 61.7 to 71
47.2 to 56.7
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 2.5
2.0 to 3.0
Nickel (Ni), % 10.5 to 13.5
20 to 23
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0 to 0.7
0.15 to 0.6