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AISI 334 Stainless Steel vs. SAE-AISI A2 Steel

Both AISI 334 stainless steel and SAE-AISI A2 steel are iron alloys. They have 65% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 540
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
5.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
2.7
Embodied Energy, MJ/kg 59
38
Embodied Water, L/kg 170
73

Common Calculations

PREN (Pitting Resistance) 19
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25 to 73
Strength to Weight: Bending, points 19
23 to 46
Thermal Shock Resistance, points 12
25 to 71

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
1.0 to 1.1
Chromium (Cr), % 18 to 20
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 55.7 to 62.7
89.4 to 93.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 19 to 21
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.15 to 0.6
0
Vanadium (V), % 0
0.15 to 0.5