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EN 1.7335 Steel vs. ASTM A387 Grade 9 Steel

Both EN 1.7335 steel and ASTM A387 grade 9 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 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 EN 1.7335 steel and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 160
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21 to 22
20 to 21
Fatigue Strength, MPa 200 to 220
160 to 240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 310 to 330
310 to 380
Tensile Strength: Ultimate (UTS), MPa 500 to 520
500 to 600
Tensile Strength: Yield (Proof), MPa 280 to 310
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
600
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.1
Embodied Energy, MJ/kg 21
28
Embodied Water, L/kg 52
87

Common Calculations

PREN (Pitting Resistance) 2.7
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 97
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 260
140 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
18 to 21
Strength to Weight: Bending, points 18
18 to 20
Thermal Diffusivity, mm2/s 12
6.9
Thermal Shock Resistance, points 15
14 to 17

Alloy Composition

Carbon (C), % 0.080 to 0.18
0 to 0.15
Chromium (Cr), % 0.7 to 1.2
8.0 to 10
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.4 to 98.4
87.1 to 90.8
Manganese (Mn), % 0.4 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0.4 to 0.6
0.9 to 1.1
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.025
Vanadium (V), % 0
0 to 0.040

Comparable Variants