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S33228 Stainless Steel vs. ASTM A387 Grade 9 Steel

Both S33228 stainless steel and ASTM A387 grade 9 steel are iron alloys. They have 49% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S33228 stainless steel and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
20 to 21
Fatigue Strength, MPa 170
160 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
75
Shear Strength, MPa 380
310 to 380
Tensile Strength: Ultimate (UTS), MPa 570
500 to 600
Tensile Strength: Yield (Proof), MPa 210
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1100
600
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 37
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
2.1
Embodied Energy, MJ/kg 89
28
Embodied Water, L/kg 220
87

Common Calculations

PREN (Pitting Resistance) 27
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 110
140 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
18 to 21
Strength to Weight: Bending, points 19
18 to 20
Thermal Shock Resistance, points 13
14 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.025
0
Carbon (C), % 0.040 to 0.080
0 to 0.15
Cerium (Ce), % 0.050 to 0.1
0
Chromium (Cr), % 26 to 28
8.0 to 10
Iron (Fe), % 36.5 to 42.3
87.1 to 90.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 31 to 33
0
Niobium (Nb), % 0.6 to 1.0
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0 to 0.040