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ASTM A242 HSLA Steel vs. R04295 Alloy

ASTM A242 HSLA steel belongs to the iron alloys classification, while R04295 alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM A242 HSLA steel and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 22
22
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 73
37
Tensile Strength: Ultimate (UTS), MPa 490
410
Tensile Strength: Yield (Proof), MPa 330
300

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Specific Heat Capacity, J/kg-K 470
260
Thermal Expansion, µm/m-K 13
7.2

Otherwise Unclassified Properties

Density, g/cm3 7.9
9.0
Embodied Water, L/kg 46
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
84
Resilience: Unit (Modulus of Resilience), kJ/m3 290
430
Stiffness to Weight: Axial, points 13
6.3
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 17
13
Strength to Weight: Bending, points 17
14
Thermal Shock Resistance, points 14
40

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.015
Copper (Cu), % 0.2 to 0.45
0
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 98.2 to 99.8
0
Manganese (Mn), % 0 to 1.0
0
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.15
0
Sulfur (S), % 0 to 0.050
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Zirconium (Zr), % 0
0 to 0.7