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EN 1.1127 Steel vs. AISI 302B Stainless Steel

Both EN 1.1127 steel and AISI 302B stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 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 1.1127 steel and the bottom bar is AISI 302B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 25
45
Fatigue Strength, MPa 280 to 370
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 420 to 480
410
Tensile Strength: Ultimate (UTS), MPa 660 to 790
580
Tensile Strength: Yield (Proof), MPa 410 to 580
230

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
930
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 49
17
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.0
Embodied Energy, MJ/kg 19
43
Embodied Water, L/kg 49
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 140
210
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 880
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 28
21
Strength to Weight: Bending, points 22 to 24
20
Thermal Diffusivity, mm2/s 13
4.4
Thermal Shock Resistance, points 21 to 25
13

Alloy Composition

Carbon (C), % 0.34 to 0.42
0 to 0.15
Chromium (Cr), % 0 to 0.4
17 to 19
Iron (Fe), % 96.6 to 98.1
65.7 to 73
Manganese (Mn), % 1.4 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
8.0 to 10
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
2.0 to 3.0
Sulfur (S), % 0 to 0.035
0 to 0.030