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AISI 416 Stainless Steel vs. ASTM Grade HK Steel

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 320
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 31
11
Fatigue Strength, MPa 230 to 340
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 510 to 800
500
Tensile Strength: Yield (Proof), MPa 290 to 600
270

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 680
1100
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
15
Thermal Expansion, µm/m-K 9.9
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
25
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.4
Embodied Energy, MJ/kg 27
63
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 13
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 140
48
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 940
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 29
18
Strength to Weight: Bending, points 18 to 25
18
Thermal Diffusivity, mm2/s 8.1
3.9
Thermal Shock Resistance, points 19 to 30
11

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.6
Chromium (Cr), % 12 to 14
24 to 28
Iron (Fe), % 83.2 to 87.9
44.8 to 57.8
Manganese (Mn), % 0 to 1.3
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
18 to 22
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