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AISI 316L Stainless Steel vs. AISI 434 Stainless Steel

Both AISI 316L stainless steel and AISI 434 stainless steel are iron alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is AISI 316L stainless steel and the bottom bar is AISI 434 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 350
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0 to 50
24
Fatigue Strength, MPa 170 to 450
220
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 80
77
Shear Modulus, GPa 78
78
Shear Strength, MPa 370 to 690
330
Tensile Strength: Ultimate (UTS), MPa 530 to 1160
520
Tensile Strength: Yield (Proof), MPa 190 to 870
320

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 870
880
Melting Completion (Liquidus), °C 1400
1510
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Calomel Potential, mV -50
-230
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.9
2.4
Embodied Energy, MJ/kg 53
33
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 26
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 230
110
Resilience: Unit (Modulus of Resilience), kJ/m3 93 to 1880
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 41
19
Strength to Weight: Bending, points 18 to 31
18
Thermal Diffusivity, mm2/s 4.1
6.7
Thermal Shock Resistance, points 12 to 25
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 16 to 18
16 to 18
Iron (Fe), % 62 to 72
78.6 to 83.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0.75 to 1.3
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030