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ASTM A387 Grade 21L Class 1 vs. EN 1.4410 Stainless Steel

Both ASTM A387 grade 21L class 1 and EN 1.4410 stainless steel are iron alloys. They have 67% 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 21L class 1 and the bottom bar is EN 1.4410 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 21
24
Fatigue Strength, MPa 160
410
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
81
Shear Strength, MPa 310
540
Tensile Strength: Ultimate (UTS), MPa 500
850
Tensile Strength: Yield (Proof), MPa 230
600

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 480
1100
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
4.0
Embodied Energy, MJ/kg 23
56
Embodied Water, L/kg 62
180

Common Calculations

PREN (Pitting Resistance) 6.4
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
880
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
30
Strength to Weight: Bending, points 18
26
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 14
23

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 2.8 to 3.3
24 to 26
Iron (Fe), % 94.4 to 96.1
58.1 to 66.8
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
3.0 to 4.5
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.35
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015