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EN 1.3537 Steel vs. ASTM A387 Grade 91 Class 2

Both EN 1.3537 steel and ASTM A387 grade 91 class 2 are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.3537 steel and the bottom bar is ASTM A387 grade 91 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 220
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 620 to 730
670

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
600
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 21
37
Embodied Water, L/kg 54
88

Common Calculations

PREN (Pitting Resistance) 2.6
13
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 26
24
Strength to Weight: Bending, points 21 to 23
22
Thermal Diffusivity, mm2/s 12
6.9
Thermal Shock Resistance, points 18 to 22
19

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.020
Carbon (C), % 0.93 to 1.1
0.080 to 0.12
Chromium (Cr), % 1.7 to 2.0
8.0 to 9.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.4 to 97.8
87.3 to 90.3
Manganese (Mn), % 0.25 to 0.45
0.3 to 0.6
Molybdenum (Mo), % 0.15 to 0.3
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Oxygen (O), % 0 to 0.0015
0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0.15 to 0.45
0.2 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010