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EN 1.4482 Stainless Steel vs. ASTM A387 Grade 21L Class 1

Both EN 1.4482 stainless steel and ASTM A387 grade 21L class 1 are iron alloys. They have 75% 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 EN 1.4482 stainless steel and the bottom bar is ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
21
Fatigue Strength, MPa 420 to 450
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 510 to 530
310
Tensile Strength: Ultimate (UTS), MPa 770 to 800
500
Tensile Strength: Yield (Proof), MPa 530 to 570
230

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 980
480
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
4.1
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.7
1.8
Embodied Energy, MJ/kg 38
23
Embodied Water, L/kg 150
62

Common Calculations

PREN (Pitting Resistance) 24
6.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 250
84
Resilience: Unit (Modulus of Resilience), kJ/m3 690 to 820
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 29
18
Strength to Weight: Bending, points 24 to 25
18
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 21 to 22
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 19.5 to 21.5
2.8 to 3.3
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.1 to 74.9
94.4 to 96.1
Manganese (Mn), % 4.0 to 6.0
0.3 to 0.6
Molybdenum (Mo), % 0.1 to 0.6
0.9 to 1.1
Nickel (Ni), % 1.5 to 3.5
0
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025