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S45500 Stainless Steel vs. S17700 Stainless Steel

Both S45500 stainless steel and S17700 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 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 S17700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 500
180 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 3.4 to 11
1.0 to 23
Fatigue Strength, MPa 570 to 890
290 to 560
Poisson's Ratio 0.28
0.28
Rockwell C Hardness 32 to 54
41 to 46
Shear Modulus, GPa 75
76
Shear Strength, MPa 790 to 1090
740 to 940
Tensile Strength: Ultimate (UTS), MPa 1370 to 1850
1180 to 1650
Tensile Strength: Yield (Proof), MPa 1240 to 1700
430 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 620
410
Maximum Temperature: Mechanical, °C 760
890
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
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.8
2.8
Embodied Energy, MJ/kg 57
40
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 13
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 190
15 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 48 to 65
42 to 59
Strength to Weight: Bending, points 35 to 42
32 to 40
Thermal Shock Resistance, points 48 to 64
39 to 54

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.5
Carbon (C), % 0 to 0.050
0 to 0.090
Chromium (Cr), % 11 to 12.5
16 to 18
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 71.5 to 79.2
70.5 to 76.8
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 7.5 to 9.5
6.5 to 7.8
Niobium (Nb), % 0 to 0.5
0
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

Comparable Variants