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EN 1.4857 Stainless Steel vs. EN 1.4837 Stainless Steel

Both EN 1.4857 stainless steel and EN 1.4837 stainless steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4857 stainless steel and the bottom bar is EN 1.4837 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.7
6.8
Fatigue Strength, MPa 120
120
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 500
500
Tensile Strength: Yield (Proof), MPa 250
250

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 1100
1050
Melting Completion (Liquidus), °C 1370
1390
Melting Onset (Solidus), °C 1320
1350
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 13
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 34
20
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.7
3.7
Embodied Energy, MJ/kg 81
53
Embodied Water, L/kg 220
180

Common Calculations

PREN (Pitting Resistance) 26
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
29
Resilience: Unit (Modulus of Resilience), kJ/m3 150
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 3.4
3.7
Thermal Shock Resistance, points 11
11

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.3 to 0.5
Chromium (Cr), % 24 to 27
24 to 27
Iron (Fe), % 31.4 to 41.7
53.4 to 63.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 33 to 36
11 to 14
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030