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AISI 403 Stainless Steel vs. ASTM Grade HI Steel

Both AISI 403 stainless steel and ASTM grade HI steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 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 403 stainless steel and the bottom bar is ASTM grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 25
11
Fatigue Strength, MPa 200 to 340
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 530 to 780
550
Tensile Strength: Yield (Proof), MPa 280 to 570
270

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 28
15
Thermal Expansion, µm/m-K 9.9
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
23
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.1
Embodied Energy, MJ/kg 27
59
Embodied Water, L/kg 99
200

Common Calculations

PREN (Pitting Resistance) 12
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
52
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 840
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 28
20
Strength to Weight: Bending, points 19 to 24
19
Thermal Diffusivity, mm2/s 7.6
3.9
Thermal Shock Resistance, points 20 to 29
12

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.5
Chromium (Cr), % 11.5 to 13
26 to 30
Iron (Fe), % 84.7 to 88.5
46.9 to 59.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.6
14 to 18
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040