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EN 1.7711 Steel vs. AISI 334 Stainless Steel

Both EN 1.7711 steel and AISI 334 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.7711 steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 280
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 22
34
Fatigue Strength, MPa 290 to 520
150
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 440 to 570
360
Tensile Strength: Ultimate (UTS), MPa 690 to 930
540
Tensile Strength: Yield (Proof), MPa 400 to 800
190

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
1000
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.3
4.1
Embodied Energy, MJ/kg 32
59
Embodied Water, L/kg 54
170

Common Calculations

PREN (Pitting Resistance) 2.9
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 140
140
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1690
96
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 33
19
Strength to Weight: Bending, points 22 to 27
19
Thermal Shock Resistance, points 24 to 32
12

Alloy Composition

Aluminum (Al), % 0 to 0.015
0.15 to 0.6
Carbon (C), % 0.36 to 0.44
0 to 0.080
Chromium (Cr), % 0.9 to 1.2
18 to 20
Iron (Fe), % 96 to 97.5
55.7 to 62.7
Manganese (Mn), % 0.45 to 0.85
0 to 1.0
Molybdenum (Mo), % 0.5 to 0.65
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 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Vanadium (V), % 0.25 to 0.35
0