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ASTM A387 Grade 22L Class 1 vs. S31277 Stainless Steel

Both ASTM A387 grade 22L class 1 and S31277 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 45% of their average alloy composition in common. There are 27 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 ASTM A387 grade 22L class 1 and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 20
45
Fatigue Strength, MPa 160
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Shear Strength, MPa 310
600
Tensile Strength: Ultimate (UTS), MPa 500
860
Tensile Strength: Yield (Proof), MPa 230
410

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 460
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
36
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.7
6.7
Embodied Energy, MJ/kg 23
90
Embodied Water, L/kg 58
220

Common Calculations

PREN (Pitting Resistance) 5.6
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
320
Resilience: Unit (Modulus of Resilience), kJ/m3 140
410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 18
25
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.020
Chromium (Cr), % 2.0 to 2.5
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 95.2 to 96.8
35.5 to 46.2
Manganese (Mn), % 0.3 to 0.6
0 to 3.0
Molybdenum (Mo), % 0.9 to 1.1
6.5 to 8.0
Nickel (Ni), % 0
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010