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EN 1.7335 Steel vs. EN 1.4988 Stainless Steel

Both EN 1.7335 steel and EN 1.4988 stainless steel are iron alloys. They have 68% 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 1.7335 steel and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 160
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 22
34
Fatigue Strength, MPa 200 to 220
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 310 to 330
430
Tensile Strength: Ultimate (UTS), MPa 500 to 520
640
Tensile Strength: Yield (Proof), MPa 280 to 310
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
920
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
6.0
Embodied Energy, MJ/kg 21
89
Embodied Water, L/kg 52
150

Common Calculations

PREN (Pitting Resistance) 2.7
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 97
180
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 260
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0.080 to 0.18
0.040 to 0.1
Chromium (Cr), % 0.7 to 1.2
15.5 to 17.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.4 to 98.4
62.1 to 69.5
Manganese (Mn), % 0.4 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.4 to 0.6
1.1 to 1.5
Nickel (Ni), % 0
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.012
0.060 to 0.14
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.35
0.3 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85