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ASTM A387 Grade 9 Steel vs. EN 1.7376 Steel

Both ASTM A387 grade 9 steel and EN 1.7376 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is EN 1.7376 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 21
20
Fatigue Strength, MPa 160 to 240
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 500 to 600
710
Tensile Strength: Yield (Proof), MPa 230 to 350
460

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
11

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
2.1
Embodied Energy, MJ/kg 28
29
Embodied Water, L/kg 87
88

Common Calculations

PREN (Pitting Resistance) 12
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
560
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 21
25
Strength to Weight: Bending, points 18 to 20
23
Thermal Diffusivity, mm2/s 6.9
6.9
Thermal Shock Resistance, points 14 to 17
20

Alloy Composition

Carbon (C), % 0 to 0.15
0.12 to 0.19
Chromium (Cr), % 8.0 to 10
8.0 to 10
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 87.1 to 90.8
86.2 to 90.6
Manganese (Mn), % 0.3 to 0.6
0.35 to 0.65
Molybdenum (Mo), % 0.9 to 1.1
0.9 to 1.2
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0 to 0.040
0 to 0.050