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AISI 317 Stainless Steel vs. EN 1.4371 Stainless Steel

Both AISI 317 stainless steel and EN 1.4371 stainless steel are iron alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is AISI 317 stainless steel and the bottom bar is EN 1.4371 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 220
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 35 to 55
45 to 51
Fatigue Strength, MPa 250 to 330
290 to 340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 420 to 470
520 to 540
Tensile Strength: Ultimate (UTS), MPa 580 to 710
740 to 750
Tensile Strength: Yield (Proof), MPa 250 to 420
320 to 340

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 590
880
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 21
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.3
2.6
Embodied Energy, MJ/kg 59
38
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 31
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 260
270 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 430
250 to 300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20 to 25
27
Strength to Weight: Bending, points 20 to 22
24
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 12 to 15
16

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 18 to 20
16 to 17.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 58 to 68
66.7 to 74.4
Manganese (Mn), % 0 to 2.0
6.0 to 8.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 11 to 15
3.5 to 5.5
Nitrogen (N), % 0 to 0.1
0.15 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants