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EN 1.4658 Stainless Steel vs. ASTM A387 Grade 2 Steel

Both EN 1.4658 stainless steel and ASTM A387 grade 2 steel are iron alloys. They have 59% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4658 stainless steel and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 28
25
Fatigue Strength, MPa 530
190 to 250
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 580
300 to 350
Tensile Strength: Ultimate (UTS), MPa 900
470 to 550
Tensile Strength: Yield (Proof), MPa 730
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
45
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.5
1.6
Embodied Energy, MJ/kg 61
20
Embodied Water, L/kg 200
50

Common Calculations

PREN (Pitting Resistance) 49
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
180 to 320
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
16 to 20
Strength to Weight: Bending, points 26
17 to 19
Thermal Diffusivity, mm2/s 4.3
12
Thermal Shock Resistance, points 24
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.21
Chromium (Cr), % 26 to 29
0.5 to 0.8
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
97.1 to 98.3
Manganese (Mn), % 0 to 1.5
0.55 to 0.8
Molybdenum (Mo), % 4.0 to 5.0
0.45 to 0.6
Nickel (Ni), % 5.5 to 9.5
0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.5
0.15 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.025