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SAE-AISI A6 Steel vs. AISI 334 Stainless Steel

Both SAE-AISI A6 steel and AISI 334 stainless steel are iron alloys. They have 61% 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 SAE-AISI A6 steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 750 to 1990
540

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
4.1
Embodied Energy, MJ/kg 24
59
Embodied Water, L/kg 57
170

Common Calculations

PREN (Pitting Resistance) 4.8
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 71
19
Strength to Weight: Bending, points 23 to 45
19
Thermal Shock Resistance, points 25 to 65
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.65 to 0.75
0 to 0.080
Chromium (Cr), % 0.9 to 1.2
18 to 20
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93 to 95.8
55.7 to 62.7
Manganese (Mn), % 1.8 to 2.5
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
19 to 21
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6