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S20431 Stainless Steel vs. ASTM Grade HL Steel

Both S20431 stainless steel and ASTM grade HL steel are iron alloys. They have 69% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S20431 stainless steel and the bottom bar is ASTM grade HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
11
Fatigue Strength, MPa 320
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 710
500
Tensile Strength: Yield (Proof), MPa 350
270

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 890
1100
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 12
27
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
4.5
Embodied Energy, MJ/kg 36
65
Embodied Water, L/kg 140
210

Common Calculations

PREN (Pitting Resistance) 20
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
48
Resilience: Unit (Modulus of Resilience), kJ/m3 310
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 23
18
Thermal Shock Resistance, points 15
11

Alloy Composition

Carbon (C), % 0 to 0.12
0.2 to 0.6
Chromium (Cr), % 17 to 18
28 to 32
Copper (Cu), % 1.5 to 3.5
0
Iron (Fe), % 66.1 to 74.4
40.8 to 53.8
Manganese (Mn), % 5.0 to 7.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 2.0 to 4.0
18 to 22
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040