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EN 1.4411 Stainless Steel vs. ASTM Grade HT Steel

Both EN 1.4411 stainless steel and ASTM grade HT steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4411 stainless steel and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
4.6
Fatigue Strength, MPa 370
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 870
500
Tensile Strength: Yield (Proof), MPa 600
270

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
400
Maximum Temperature: Mechanical, °C 880
1010
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.0
5.4
Embodied Energy, MJ/kg 41
76
Embodied Water, L/kg 130
190

Common Calculations

PREN (Pitting Resistance) 22
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
19
Resilience: Unit (Modulus of Resilience), kJ/m3 920
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
18
Strength to Weight: Bending, points 26
18
Thermal Diffusivity, mm2/s 4.6
3.2
Thermal Shock Resistance, points 28
12

Alloy Composition

Carbon (C), % 0 to 0.060
0.35 to 0.75
Chromium (Cr), % 15 to 17
15 to 19
Iron (Fe), % 73.1 to 79.5
38.2 to 51.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.5 to 2.0
0 to 0.5
Nickel (Ni), % 4.0 to 6.0
33 to 37
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.040