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EN 1.7239 Steel vs. AISI 334 Stainless Steel

Both EN 1.7239 steel and AISI 334 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.7239 steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 480
180
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 660 to 1990
540

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
1000
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 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.1
Embodied Energy, MJ/kg 20
59
Embodied Water, L/kg 50
170

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 71
19
Strength to Weight: Bending, points 21 to 45
19
Thermal Shock Resistance, points 19 to 59
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.56 to 0.64
0 to 0.080
Chromium (Cr), % 0.7 to 1.0
18 to 20
Iron (Fe), % 96.8 to 98
55.7 to 62.7
Manganese (Mn), % 0.7 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.060 to 0.15
0
Nickel (Ni), % 0
19 to 21
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6