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EN 1.4988 Stainless Steel vs. EN 1.4542 Stainless Steel

Both EN 1.4988 stainless steel and EN 1.4542 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 32 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 EN 1.4988 stainless steel and the bottom bar is EN 1.4542 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
5.7 to 20
Fatigue Strength, MPa 230
370 to 640
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 430
550 to 860
Tensile Strength: Ultimate (UTS), MPa 640
880 to 1470
Tensile Strength: Yield (Proof), MPa 290
580 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 520
440
Maximum Temperature: Mechanical, °C 920
860
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
2.7
Embodied Energy, MJ/kg 89
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 22
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
62 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 210
880 to 4360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
31 to 52
Strength to Weight: Bending, points 21
26 to 37
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 14
29 to 49

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.070
Chromium (Cr), % 15.5 to 17.5
15 to 17
Copper (Cu), % 0
3.0 to 5.0
Iron (Fe), % 62.1 to 69.5
69.6 to 79
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 1.1 to 1.5
0 to 0.6
Nickel (Ni), % 12.5 to 14.5
3.0 to 5.0
Niobium (Nb), % 0.4 to 1.2
0 to 0.45
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0.6 to 0.85
0