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AISI 440C Stainless Steel vs. AISI 334 Stainless Steel

Both AISI 440C stainless steel and AISI 334 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 440C stainless steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 2.0 to 14
34
Fatigue Strength, MPa 260 to 840
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 430 to 1120
360
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
540
Tensile Strength: Yield (Proof), MPa 450 to 1900
190

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
490
Maximum Temperature: Mechanical, °C 870
1000
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
22
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.1
Embodied Energy, MJ/kg 31
59
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 18
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 71
19
Strength to Weight: Bending, points 23 to 46
19
Thermal Shock Resistance, points 26 to 71
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 1.0 to 1.2
0 to 0.080
Chromium (Cr), % 16 to 18
18 to 20
Iron (Fe), % 78 to 83.1
55.7 to 62.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
19 to 21
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6