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AWS E308H vs. AISI 434 Stainless Steel

Both AWS E308H and AISI 434 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 (10, in this case) are not shown.

For each property being compared, the top bar is AWS E308H and the bottom bar is AISI 434 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
24
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 620
520

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1420
1510
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.4
Embodied Energy, MJ/kg 46
33
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 21
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 4.2
6.7
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.12
Chromium (Cr), % 18 to 21
16 to 18
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 62.9 to 72.5
78.6 to 83.3
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0.75 to 1.3
Nickel (Ni), % 9.0 to 11
0
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