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ASTM A387 Grade 22L Class 1 vs. EN 1.4034 Stainless Steel

Both ASTM A387 grade 22L class 1 and EN 1.4034 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 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 22L class 1 and the bottom bar is EN 1.4034 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
11 to 14
Fatigue Strength, MPa 160
230 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 310
420 to 540
Tensile Strength: Ultimate (UTS), MPa 500
690 to 900
Tensile Strength: Yield (Proof), MPa 230
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 460
770
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.0
Embodied Energy, MJ/kg 23
27
Embodied Water, L/kg 58
100

Common Calculations

PREN (Pitting Resistance) 5.6
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
81 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 140
400 to 1370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
25 to 32
Strength to Weight: Bending, points 18
22 to 27
Thermal Diffusivity, mm2/s 11
8.1
Thermal Shock Resistance, points 14
24 to 32

Alloy Composition

Carbon (C), % 0 to 0.1
0.43 to 0.5
Chromium (Cr), % 2.0 to 2.5
12.5 to 14.5
Iron (Fe), % 95.2 to 96.8
83 to 87.1
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015