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AWS ER90S-B3 vs. ASTM Grade HP Steel

Both AWS ER90S-B3 and ASTM grade HP steel are iron alloys. They have 40% 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 AWS ER90S-B3 and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
5.1
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 690
490
Tensile Strength: Yield (Proof), MPa 620
260

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
5.8
Embodied Energy, MJ/kg 24
82
Embodied Water, L/kg 60
220

Common Calculations

PREN (Pitting Resistance) 6.0
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 20
11

Alloy Composition


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Carbon (C), % 0.070 to 0.12
0.35 to 0.75
Chromium (Cr), % 2.3 to 2.7
24 to 28
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 93.5 to 95.9
29.2 to 42.7
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.2
0 to 0.5
Nickel (Ni), % 0 to 0.2
33 to 37
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.4 to 0.7
0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.040
Residuals, % 0 to 0.5
0