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EN 1.4109 Stainless Steel vs. ASTM Grade HN Steel

Both EN 1.4109 stainless steel and ASTM grade HN steel are iron alloys. They have 68% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4109 stainless steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19
9.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 770
500

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 820
1080
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
13
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.6
Embodied Energy, MJ/kg 30
66
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 17
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 8.1
3.5
Thermal Shock Resistance, points 28
11

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.2 to 0.5
Chromium (Cr), % 14 to 16
19 to 23
Iron (Fe), % 80.7 to 85
44.9 to 57.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.8
0 to 0.5
Nickel (Ni), % 0
23 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040