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ASTM A387 Grade 22 Class 1 vs. Annealed K93050 Alloy

Both ASTM A387 grade 22 class 1 and annealed K93050 alloy are iron alloys. Both are furnished in the annealed condition. They have 63% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 22 class 1 and the bottom bar is annealed K93050 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 74
72
Tensile Strength: Ultimate (UTS), MPa 480
500
Tensile Strength: Yield (Proof), MPa 230
300

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
26
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.7
4.7
Embodied Energy, MJ/kg 23
65
Embodied Water, L/kg 58
120

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.15
Chromium (Cr), % 2.0 to 2.5
0 to 0.25
Cobalt (Co), % 0
0 to 0.5
Iron (Fe), % 95.1 to 96.8
61.4 to 63.9
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
36
Phosphorus (P), % 0 to 0.025
0 to 0.020
Selenium (Se), % 0
0.15 to 0.3
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.020