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ASTM A387 Grade 22 Steel vs. EN 1.4901 Stainless Steel

Both ASTM A387 grade 22 steel and EN 1.4901 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19
Fatigue Strength, MPa 160 to 240
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 300 to 380
460
Tensile Strength: Ultimate (UTS), MPa 480 to 600
740
Tensile Strength: Yield (Proof), MPa 230 to 350
490

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 460
650
Melting Completion (Liquidus), °C 1470
1490
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
26
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
11
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 23
40
Embodied Water, L/kg 58
89

Common Calculations

PREN (Pitting Resistance) 5.6
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
620
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 21
26
Strength to Weight: Bending, points 17 to 20
23
Thermal Diffusivity, mm2/s 11
6.9
Thermal Shock Resistance, points 14 to 17
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0.050 to 0.15
0.070 to 0.13
Chromium (Cr), % 2.0 to 2.5
8.5 to 9.5
Iron (Fe), % 95.1 to 96.8
85.8 to 89.1
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.6
Molybdenum (Mo), % 0.9 to 1.1
0.3 to 0.6
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.040 to 0.090
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.0
Vanadium (V), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.010