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Quarter-hard AISI 301 vs. Quarter-hard AISI 304N

Both quarter-hard AISI 301 and quarter-hard AISI 304N are iron alloys. Both are furnished in the quarter-hard temper. They have a very high 96% of their average alloy composition in common. There are 33 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 quarter-hard AISI 301 and the bottom bar is quarter-hard AISI 304N.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290
290
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
13
Fatigue Strength, MPa 430
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 630
580
Tensile Strength: Ultimate (UTS), MPa 960
960
Tensile Strength: Yield (Proof), MPa 590
590

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 840
960
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 39
43
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
110
Resilience: Unit (Modulus of Resilience), kJ/m3 880
870
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34
34
Strength to Weight: Bending, points 28
28
Thermal Diffusivity, mm2/s 4.2
4.2
Thermal Shock Resistance, points 20
22

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 16 to 18
18 to 20
Iron (Fe), % 70.7 to 78
66.4 to 73.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 6.0 to 8.0
8.0 to 10.5
Nitrogen (N), % 0 to 0.1
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030