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AWS E320 vs. S17700 Stainless Steel

Both AWS E320 and S17700 stainless steel are iron alloys. They have 63% 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 E320 and the bottom bar is S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
1.0 to 23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 620
1180 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 38
13
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.5
2.8
Embodied Energy, MJ/kg 91
40
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 28
17
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
42 to 59
Strength to Weight: Bending, points 20
32 to 40
Thermal Shock Resistance, points 16
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.070
0 to 0.090
Chromium (Cr), % 19 to 21
16 to 18
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 31.8 to 43.5
70.5 to 76.8
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 32 to 36
6.5 to 7.8
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030