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ASTM A387 Grade 91 Class 2 vs. EN 1.4567 Stainless Steel

Both ASTM A387 grade 91 class 2 and EN 1.4567 stainless steel are iron alloys. They have 77% 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 91 class 2 and the bottom bar is EN 1.4567 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
22 to 51
Fatigue Strength, MPa 330
190 to 260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 420
390 to 490
Tensile Strength: Ultimate (UTS), MPa 670
550 to 780
Tensile Strength: Yield (Proof), MPa 470
200 to 390

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 600
930
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.1
Embodied Energy, MJ/kg 37
43
Embodied Water, L/kg 88
150

Common Calculations

PREN (Pitting Resistance) 13
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 580
100 to 400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
19 to 27
Strength to Weight: Bending, points 22
19 to 24
Thermal Diffusivity, mm2/s 6.9
3.0
Thermal Shock Resistance, points 19
12 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.040
Chromium (Cr), % 8.0 to 9.5
17 to 19
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 87.3 to 90.3
63.3 to 71.5
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
8.5 to 10.5
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0.2 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0