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EN 1.4886 Stainless Steel vs. ASTM A321 Carbon Steel

Both EN 1.4886 stainless steel and ASTM A321 carbon steel are iron alloys. They have 45% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4886 stainless steel and the bottom bar is ASTM A321 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
21
Fatigue Strength, MPa 280
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 400
420
Tensile Strength: Ultimate (UTS), MPa 580
670
Tensile Strength: Yield (Proof), MPa 300
390

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.4
Embodied Energy, MJ/kg 76
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
120
Resilience: Unit (Modulus of Resilience), kJ/m3 230
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 3.1
14
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.55
Chromium (Cr), % 17 to 20
0
Iron (Fe), % 38.7 to 49
98.1 to 99.25
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Nickel (Ni), % 33 to 37
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.050