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SAE-AISI A9 Steel vs. EN 1.6570 Steel

Both SAE-AISI A9 steel and EN 1.6570 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A9 steel and the bottom bar is EN 1.6570 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
910 to 1130

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 35
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
3.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.7
1.7
Embodied Energy, MJ/kg 70
23
Embodied Water, L/kg 82
56

Common Calculations

PREN (Pitting Resistance) 10
2.5
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 73
32 to 40
Strength to Weight: Bending, points 24 to 46
27 to 31
Thermal Diffusivity, mm2/s 9.6
11
Thermal Shock Resistance, points 25 to 66
27 to 33

Alloy Composition

Carbon (C), % 0.45 to 0.55
0.28 to 0.35
Chromium (Cr), % 4.8 to 5.5
1.0 to 1.4
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87 to 90.5
94 to 96.2
Manganese (Mn), % 0 to 0.5
0.6 to 1.0
Molybdenum (Mo), % 1.3 to 1.8
0.3 to 0.5
Nickel (Ni), % 1.3 to 1.8
1.6 to 2.1
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 1.0 to 1.2
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0.8 to 1.4
0

Comparable Variants