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AISI 416 Stainless Steel vs. ASTM Grade HN Steel

Both AISI 416 stainless steel and ASTM grade HN steel are iron alloys. They have 66% 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 AISI 416 stainless steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 320
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 31
9.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 510 to 800
500

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 680
1080
Melting Completion (Liquidus), °C 1530
1400
Melting Onset (Solidus), °C 1480
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
13
Thermal Expansion, µm/m-K 9.9
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
4.6
Embodied Energy, MJ/kg 27
66
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 13
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 29
17
Strength to Weight: Bending, points 18 to 25
18
Thermal Diffusivity, mm2/s 8.1
3.5
Thermal Shock Resistance, points 19 to 30
11

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.5
Chromium (Cr), % 12 to 14
19 to 23
Iron (Fe), % 83.2 to 87.9
44.9 to 57.8
Manganese (Mn), % 0 to 1.3
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
23 to 27
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0.15 to 0.35
0 to 0.040