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ASTM A387 Grade 11 Steel vs. EN 1.4303 Stainless Steel

Both ASTM A387 grade 11 steel and EN 1.4303 stainless steel are iron alloys. They have 71% 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 ASTM A387 grade 11 steel and the bottom bar is EN 1.4303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
13 to 49
Fatigue Strength, MPa 200 to 250
220 to 320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 320 to 390
420 to 540
Tensile Strength: Ultimate (UTS), MPa 500 to 600
590 to 900
Tensile Strength: Yield (Proof), MPa 270 to 350
230 to 560

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 430
940
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.2
Embodied Energy, MJ/kg 21
46
Embodied Water, L/kg 53
150

Common Calculations

PREN (Pitting Resistance) 3.1
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
110 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
140 to 800
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
21 to 32
Strength to Weight: Bending, points 18 to 20
20 to 26
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 15 to 18
13 to 20

Alloy Composition

Carbon (C), % 0.050 to 0.17
0 to 0.060
Chromium (Cr), % 1.0 to 1.5
17 to 19
Iron (Fe), % 96.2 to 97.6
64.8 to 72
Manganese (Mn), % 0.4 to 0.65
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
11 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.5 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015

Comparable Variants