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ASTM A387 Grade 22 Steel vs. EN 1.4438 Stainless Steel

Both ASTM A387 grade 22 steel and EN 1.4438 stainless steel are iron alloys. They have 66% 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 ASTM A387 grade 22 steel and the bottom bar is EN 1.4438 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
41
Fatigue Strength, MPa 160 to 240
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Shear Strength, MPa 300 to 380
420
Tensile Strength: Ultimate (UTS), MPa 480 to 600
620
Tensile Strength: Yield (Proof), MPa 230 to 350
250

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
1000
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
22
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
4.4
Embodied Energy, MJ/kg 23
60
Embodied Water, L/kg 58
160

Common Calculations

PREN (Pitting Resistance) 5.6
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
200
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 21
22
Strength to Weight: Bending, points 17 to 20
20
Thermal Diffusivity, mm2/s 11
3.7
Thermal Shock Resistance, points 14 to 17
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 2.0 to 2.5
17.5 to 19.5
Iron (Fe), % 95.1 to 96.8
57.3 to 66.5
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
3.0 to 4.0
Nickel (Ni), % 0
13 to 16
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015