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S39274 Stainless Steel vs. S17400 Stainless Steel

Both S39274 stainless steel and S17400 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 35 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S39274 stainless steel and the bottom bar is S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 17
11 to 21
Fatigue Strength, MPa 380
380 to 670
Poisson's Ratio 0.27
0.28
Reduction in Area, % 34
40 to 62
Rockwell C Hardness 28
27 to 43
Shear Modulus, GPa 81
75
Shear Strength, MPa 560
570 to 830
Tensile Strength: Ultimate (UTS), MPa 900
910 to 1390
Tensile Strength: Yield (Proof), MPa 620
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
850
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 24
14
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.3
2.7
Embodied Energy, MJ/kg 60
39
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 43
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 940
880 to 4060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
32 to 49
Strength to Weight: Bending, points 26
27 to 35
Thermal Diffusivity, mm2/s 4.2
4.5
Thermal Shock Resistance, points 25
30 to 46

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 24 to 26
15 to 17
Copper (Cu), % 0.2 to 0.8
3.0 to 5.0
Iron (Fe), % 57 to 65.6
70.4 to 78.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 6.0 to 8.0
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 2.5
0