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EN 1.4945 Stainless Steel vs. EN 1.6570 Steel

Both EN 1.4945 stainless steel and EN 1.6570 steel are iron alloys. They have 66% 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 1.4945 stainless steel and the bottom bar is EN 1.6570 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
270 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19 to 34
11 to 17
Fatigue Strength, MPa 230 to 350
500 to 660
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 640 to 740
910 to 1130
Tensile Strength: Yield (Proof), MPa 290 to 550
760 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 920
440
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1440
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 30
3.9
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.0
1.7
Embodied Energy, MJ/kg 73
23
Embodied Water, L/kg 150
56

Common Calculations

PREN (Pitting Resistance) 23
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
1520 to 3010
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
32 to 40
Strength to Weight: Bending, points 20 to 22
27 to 31
Thermal Diffusivity, mm2/s 3.7
11
Thermal Shock Resistance, points 14 to 16
27 to 33

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.28 to 0.35
Chromium (Cr), % 15.5 to 17.5
1.0 to 1.4
Iron (Fe), % 57.9 to 65.7
94 to 96.2
Manganese (Mn), % 0 to 1.5
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 15.5 to 17.5
1.6 to 2.1
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.3 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 2.5 to 3.5
0

Comparable Variants