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AISI 309HCb Stainless Steel vs. ASTM A356 Grade 6

Both AISI 309HCb stainless steel and ASTM A356 grade 6 are iron alloys. They have 63% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 309HCb stainless steel and the bottom bar is ASTM A356 grade 6.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
25
Fatigue Strength, MPa 210
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 590
550
Tensile Strength: Yield (Proof), MPa 230
350

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
430
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
41
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 23
2.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.6
Embodied Energy, MJ/kg 59
21
Embodied Water, L/kg 170
53

Common Calculations

PREN (Pitting Resistance) 23
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
120
Resilience: Unit (Modulus of Resilience), kJ/m3 130
320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.2
Chromium (Cr), % 22 to 24
1.0 to 1.5
Iron (Fe), % 56 to 66
96.2 to 98.1
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 12 to 16
0
Niobium (Nb), % 0 to 1.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030