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ASTM A387 Grade 22 Steel vs. S42030 Stainless Steel

Both ASTM A387 grade 22 steel and S42030 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 22 steel and the bottom bar is S42030 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
16
Fatigue Strength, MPa 160 to 240
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 300 to 380
410
Tensile Strength: Ultimate (UTS), MPa 480 to 600
670
Tensile Strength: Yield (Proof), MPa 230 to 350
410

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 460
780
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
28
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.5
Embodied Energy, MJ/kg 23
34
Embodied Water, L/kg 58
110

Common Calculations

PREN (Pitting Resistance) 5.6
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
92
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
440
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 21
24
Strength to Weight: Bending, points 17 to 20
22
Thermal Diffusivity, mm2/s 11
7.7
Thermal Shock Resistance, points 14 to 17
24

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.3
Chromium (Cr), % 2.0 to 2.5
12 to 14
Copper (Cu), % 0
2.0 to 3.0
Iron (Fe), % 95.1 to 96.8
77.6 to 85
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
1.0 to 3.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030