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AISI 334 Stainless Steel vs. EN 1.7390 Steel

Both AISI 334 stainless steel and EN 1.7390 steel are iron alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16
Fatigue Strength, MPa 150
310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 360
440
Tensile Strength: Ultimate (UTS), MPa 540
710
Tensile Strength: Yield (Proof), MPa 190
480

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 1000
510
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
4.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.7
Embodied Energy, MJ/kg 59
23
Embodied Water, L/kg 170
69

Common Calculations

PREN (Pitting Resistance) 19
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
100
Resilience: Unit (Modulus of Resilience), kJ/m3 96
600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
23
Thermal Shock Resistance, points 12
20

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0 to 0.18
Chromium (Cr), % 18 to 20
4.0 to 6.0
Iron (Fe), % 55.7 to 62.7
91.9 to 95.3
Manganese (Mn), % 0 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 19 to 21
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.15 to 0.6
0