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S20431 Stainless Steel vs. ASTM A387 Grade 22L Class 1

Both S20431 stainless steel and ASTM A387 grade 22L class 1 are iron alloys. Both are furnished in the annealed condition. They have 73% of their average alloy composition in common. There are 32 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 S20431 stainless steel and the bottom bar is ASTM A387 grade 22L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
20
Fatigue Strength, MPa 320
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Shear Strength, MPa 500
310
Tensile Strength: Ultimate (UTS), MPa 710
500
Tensile Strength: Yield (Proof), MPa 350
230

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 890
460
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.5
1.7
Embodied Energy, MJ/kg 36
23
Embodied Water, L/kg 140
58

Common Calculations

PREN (Pitting Resistance) 20
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
83
Resilience: Unit (Modulus of Resilience), kJ/m3 310
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.1
Chromium (Cr), % 17 to 18
2.0 to 2.5
Copper (Cu), % 1.5 to 3.5
0
Iron (Fe), % 66.1 to 74.4
95.2 to 96.8
Manganese (Mn), % 5.0 to 7.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025