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EN 1.4570 Stainless Steel vs. EN 1.4150 Stainless Steel

Both EN 1.4570 stainless steel and EN 1.4150 stainless steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4570 stainless steel and the bottom bar is EN 1.4150 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
20
Fatigue Strength, MPa 180
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 410
460
Tensile Strength: Ultimate (UTS), MPa 610
730
Tensile Strength: Yield (Proof), MPa 210
430

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 930
840
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
23
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 15
8.5
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 43
42
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 110
470
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 4.0
6.2
Thermal Shock Resistance, points 14
27

Alloy Composition

Carbon (C), % 0 to 0.080
0.45 to 0.6
Chromium (Cr), % 17 to 19
15 to 16.5
Copper (Cu), % 1.4 to 1.8
0
Iron (Fe), % 65 to 73.5
79 to 82.8
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 0 to 0.6
0.2 to 0.4
Nickel (Ni), % 8.0 to 10
0 to 0.4
Nitrogen (N), % 0 to 0.1
0.050 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
1.3 to 1.7
Sulfur (S), % 0.15 to 0.35
0 to 0.010
Vanadium (V), % 0
0.2 to 0.4