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AWS E307 vs. S44725 Stainless Steel

Both AWS E307 and S44725 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E307 and the bottom bar is S44725 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
22
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 660
500

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 17
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
3.1
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 160
170

Common Calculations

PREN (Pitting Resistance) 23
33
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 4.1
4.6
Thermal Shock Resistance, points 17
16

Alloy Composition

Carbon (C), % 0.040 to 0.14
0 to 0.015
Chromium (Cr), % 18 to 21.5
25 to 28.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 59.6 to 69.2
67.6 to 73.5
Manganese (Mn), % 3.3 to 4.8
0 to 0.4
Molybdenum (Mo), % 0.5 to 1.5
1.5 to 2.5
Nickel (Ni), % 9.0 to 10.7
0 to 0.3
Niobium (Nb), % 0
0 to 0.26
Nitrogen (N), % 0
0 to 0.018
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.040
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0 to 0.26