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EN 1.4980 Stainless Steel vs. EN 1.4988 Stainless Steel

Both EN 1.4980 stainless steel and EN 1.4988 stainless steel are iron alloys. Both are furnished in the aged (precipitation hardened) condition. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4980 stainless steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
34
Fatigue Strength, MPa 410
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 630
430
Tensile Strength: Ultimate (UTS), MPa 1030
640
Tensile Strength: Yield (Proof), MPa 680
290

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 780
520
Maximum Temperature: Mechanical, °C 920
920
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 26
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 6.0
6.0
Embodied Energy, MJ/kg 87
89
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 19
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 36
23
Strength to Weight: Bending, points 28
21
Thermal Diffusivity, mm2/s 3.5
4.0
Thermal Shock Resistance, points 22
14

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.030 to 0.080
0.040 to 0.1
Chromium (Cr), % 13.5 to 16
15.5 to 17.5
Iron (Fe), % 49.2 to 58.5
62.1 to 69.5
Manganese (Mn), % 1.0 to 2.0
0 to 1.5
Molybdenum (Mo), % 1.0 to 1.5
1.1 to 1.5
Nickel (Ni), % 24 to 27
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 1.9 to 2.3
0
Vanadium (V), % 0.1 to 0.5
0.6 to 0.85