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EN 1.4417 Stainless Steel vs. ASTM A387 Grade 22 Steel

Both EN 1.4417 stainless steel and ASTM A387 grade 22 steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4417 stainless steel and the bottom bar is ASTM A387 grade 22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
21
Fatigue Strength, MPa 380
160 to 240
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
74
Tensile Strength: Ultimate (UTS), MPa 730
480 to 600
Tensile Strength: Yield (Proof), MPa 550
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1100
460
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 21
3.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.1
1.7
Embodied Energy, MJ/kg 57
23
Embodied Water, L/kg 180
58

Common Calculations

PREN (Pitting Resistance) 41
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
85 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 730
140 to 320
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
17 to 21
Strength to Weight: Bending, points 23
17 to 20
Thermal Diffusivity, mm2/s 4.6
11
Thermal Shock Resistance, points 20
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 24 to 26
2.0 to 2.5
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 56.7 to 66.9
95.1 to 96.8
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 3.0 to 4.0
0.9 to 1.1
Nickel (Ni), % 6.0 to 8.5
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Tungsten (W), % 0 to 1.0
0