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EN 1.4509 Stainless Steel vs. ASTM Grade HT Steel

Both EN 1.4509 stainless steel and ASTM grade HT steel are iron alloys. They have 63% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4509 stainless steel and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
4.6
Fatigue Strength, MPa 170
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 530
500
Tensile Strength: Yield (Proof), MPa 260
270

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 570
400
Maximum Temperature: Mechanical, °C 890
1010
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.4
Embodied Energy, MJ/kg 41
76
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 18
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
19
Resilience: Unit (Modulus of Resilience), kJ/m3 180
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 6.8
3.2
Thermal Shock Resistance, points 19
12

Alloy Composition

Carbon (C), % 0 to 0.030
0.35 to 0.75
Chromium (Cr), % 17.5 to 18.5
15 to 19
Iron (Fe), % 77.8 to 82.1
38.2 to 51.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
33 to 37
Niobium (Nb), % 0.3 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.040
Titanium (Ti), % 0.1 to 0.6
0