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AISI 317 Stainless Steel vs. EN 1.6958 Steel

Both AISI 317 stainless steel and EN 1.6958 steel are iron alloys. They have 69% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 317 stainless steel and the bottom bar is EN 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 220
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 35 to 55
16
Fatigue Strength, MPa 250 to 330
700
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 420 to 470
700
Tensile Strength: Ultimate (UTS), MPa 580 to 710
1140
Tensile Strength: Yield (Proof), MPa 250 to 420
1070

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 590
450
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 21
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.3
2.0
Embodied Energy, MJ/kg 59
27
Embodied Water, L/kg 160
60

Common Calculations

PREN (Pitting Resistance) 31
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 260
180
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 430
3050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20 to 25
40
Strength to Weight: Bending, points 20 to 22
31
Thermal Diffusivity, mm2/s 4.1
13
Thermal Shock Resistance, points 12 to 15
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0 to 0.080
0.25 to 0.3
Chromium (Cr), % 18 to 20
1.2 to 1.7
Iron (Fe), % 58 to 68
92.6 to 94.5
Manganese (Mn), % 0 to 2.0
0.2 to 0.5
Molybdenum (Mo), % 3.0 to 4.0
0.35 to 0.55
Nickel (Ni), % 11 to 15
3.3 to 3.8
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0.15 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0 to 0.12