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EN 1.6570 Steel vs. EN 1.4912 Stainless Steel

Both EN 1.6570 steel and EN 1.4912 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.6570 steel and the bottom bar is EN 1.4912 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 340
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
40
Fatigue Strength, MPa 500 to 660
200
Impact Strength: V-Notched Charpy, J 40 to 48
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 910 to 1130
610
Tensile Strength: Yield (Proof), MPa 760 to 1060
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
16
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.8
Embodied Energy, MJ/kg 23
55
Embodied Water, L/kg 56
140

Common Calculations

PREN (Pitting Resistance) 2.5
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1520 to 3010
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 32 to 40
22
Strength to Weight: Bending, points 27 to 31
20
Thermal Diffusivity, mm2/s 11
4.2
Thermal Shock Resistance, points 27 to 33
14

Alloy Composition

Carbon (C), % 0.28 to 0.35
0.040 to 0.1
Chromium (Cr), % 1.0 to 1.4
17 to 19
Iron (Fe), % 94 to 96.2
64.6 to 73.6
Manganese (Mn), % 0.6 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.5
0
Nickel (Ni), % 1.6 to 2.1
9.0 to 12
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015