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AISI 334 Stainless Steel vs. AISI 347 Stainless Steel

Both AISI 334 stainless steel and AISI 347 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is AISI 347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34 to 46
Fatigue Strength, MPa 150
220 to 270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 360
430 to 460
Tensile Strength: Ultimate (UTS), MPa 540
610 to 690
Tensile Strength: Yield (Proof), MPa 190
240 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 490
480
Maximum Temperature: Mechanical, °C 1000
870
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
3.6
Embodied Energy, MJ/kg 59
52
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
190 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 96
150 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
22 to 25
Strength to Weight: Bending, points 19
20 to 22
Thermal Shock Resistance, points 12
13 to 15

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 18 to 20
17 to 19
Iron (Fe), % 55.7 to 62.7
64.1 to 74
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 19 to 21
9.0 to 13
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0