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Annealed S45500 Stainless Steel vs. ASTM A387 Grade 9 Class 1

Both annealed S45500 stainless steel and ASTM A387 grade 9 class 1 are iron alloys. Both are furnished in the annealed condition. They have 85% of their average alloy composition in common. There are 28 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 annealed S45500 stainless steel and the bottom bar is ASTM A387 grade 9 class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 3.4
20
Fatigue Strength, MPa 570
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
75
Shear Strength, MPa 790
310
Tensile Strength: Ultimate (UTS), MPa 1370
500
Tensile Strength: Yield (Proof), MPa 1240
230

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 760
600
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.1
Embodied Energy, MJ/kg 57
28
Embodied Water, L/kg 120
87

Common Calculations

PREN (Pitting Resistance) 13
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 45
83
Resilience: Unit (Modulus of Resilience), kJ/m3 4000
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 48
18
Strength to Weight: Bending, points 35
18
Thermal Shock Resistance, points 48
14

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.15
Chromium (Cr), % 11 to 12.5
8.0 to 10
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 71.5 to 79.2
87.1 to 90.8
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 7.5 to 9.5
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0.8 to 1.4
0
Vanadium (V), % 0
0 to 0.040