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AWS E312 vs. AISI 420 Stainless Steel

Both AWS E312 and AISI 420 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
8.0 to 15
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 740
690 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1410
1510
Melting Onset (Solidus), °C 1360
1450
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 20
7.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.0
Embodied Energy, MJ/kg 52
28
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 31
14
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
25 to 62
Strength to Weight: Bending, points 24
22 to 41
Thermal Shock Resistance, points 18
25 to 62

Alloy Composition

Carbon (C), % 0 to 0.15
0.15 to 0.4
Chromium (Cr), % 28 to 32
12 to 14
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 52.3 to 63.5
82.3 to 87.9
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.5
Nickel (Ni), % 8.0 to 10.5
0 to 0.75
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030