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S17400 Stainless Steel vs. ASTM Grade HL Steel

Both S17400 stainless steel and ASTM grade HL steel are iron alloys. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is ASTM grade HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
11
Fatigue Strength, MPa 380 to 670
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
500
Tensile Strength: Yield (Proof), MPa 580 to 1250
270

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 450
460
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
27
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
4.5
Embodied Energy, MJ/kg 39
65
Embodied Water, L/kg 130
210

Common Calculations

PREN (Pitting Resistance) 16
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
48
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 49
18
Strength to Weight: Bending, points 27 to 35
18
Thermal Shock Resistance, points 30 to 46
11

Alloy Composition

Carbon (C), % 0 to 0.070
0.2 to 0.6
Chromium (Cr), % 15 to 17
28 to 32
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
40.8 to 53.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 3.0 to 5.0
18 to 22
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040