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S45500 Stainless Steel vs. S17400 Stainless Steel

Both S45500 stainless steel and S17400 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 30 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 S45500 stainless steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 500
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 3.4 to 11
11 to 21
Fatigue Strength, MPa 570 to 890
380 to 670
Poisson's Ratio 0.28
0.28
Reduction in Area, % 34 to 45
40 to 62
Rockwell C Hardness 32 to 54
27 to 43
Shear Modulus, GPa 75
75
Shear Strength, MPa 790 to 1090
570 to 830
Tensile Strength: Ultimate (UTS), MPa 1370 to 1850
910 to 1390
Tensile Strength: Yield (Proof), MPa 1240 to 1700
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 620
450
Maximum Temperature: Mechanical, °C 760
850
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 17
14
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 57
39
Embodied Water, L/kg 120
130

Common Calculations

PREN (Pitting Resistance) 13
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 190
140 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 48 to 65
32 to 49
Strength to Weight: Bending, points 35 to 42
27 to 35
Thermal Shock Resistance, points 48 to 64
30 to 46

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.070
Chromium (Cr), % 11 to 12.5
15 to 17
Copper (Cu), % 1.5 to 2.5
3.0 to 5.0
Iron (Fe), % 71.5 to 79.2
70.4 to 78.9
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 7.5 to 9.5
3.0 to 5.0
Niobium (Nb), % 0 to 0.5
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0.8 to 1.4
0