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AISI 304LN Stainless Steel vs. ASTM A228 Music Wire

Both AISI 304LN stainless steel and ASTM A228 music wire are iron alloys. They have 70% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 304LN stainless steel and the bottom bar is ASTM A228 music wire.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 350
710
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 7.8 to 46
12
Fatigue Strength, MPa 200 to 440
1280
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 400 to 680
1470
Tensile Strength: Ultimate (UTS), MPa 580 to 1160
2450
Tensile Strength: Yield (Proof), MPa 230 to 870
2050

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 960
400
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 16
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 44
19
Embodied Water, L/kg 150
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 270
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 41
87
Strength to Weight: Bending, points 20 to 31
52
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 13 to 26
79

Alloy Composition

Carbon (C), % 0 to 0.030
0.7 to 1.0
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 65 to 73.9
98 to 99
Manganese (Mn), % 0 to 2.0
0.2 to 0.6
Nickel (Ni), % 8.0 to 12
0
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0.1 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.030