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AISI 201 Stainless Steel vs. EN 1.4988 Stainless Steel

Both AISI 201 stainless steel and EN 1.4988 stainless steel are iron alloys. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is AISI 201 stainless steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 440
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.6 to 51
34
Fatigue Strength, MPa 280 to 600
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 450 to 840
430
Tensile Strength: Ultimate (UTS), MPa 650 to 1450
640
Tensile Strength: Yield (Proof), MPa 300 to 1080
290

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
520
Maximum Temperature: Mechanical, °C 880
920
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
6.0
Embodied Energy, MJ/kg 38
89
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 19
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 61 to 340
180
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 2970
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23 to 52
23
Strength to Weight: Bending, points 22 to 37
21
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 14 to 32
14

Alloy Composition

Carbon (C), % 0 to 0.15
0.040 to 0.1
Chromium (Cr), % 16 to 18
15.5 to 17.5
Iron (Fe), % 67.5 to 75
62.1 to 69.5
Manganese (Mn), % 5.5 to 7.5
0 to 1.5
Molybdenum (Mo), % 0
1.1 to 1.5
Nickel (Ni), % 3.5 to 5.5
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.25
0.060 to 0.14
Phosphorus (P), % 0 to 0.060
0 to 0.035
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85