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AISI 348H Stainless Steel vs. EN 1.4959 Stainless Steel

Both AISI 348H stainless steel and EN 1.4959 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 348H stainless steel and the bottom bar is EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
40
Fatigue Strength, MPa 200
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 400
430
Tensile Strength: Ultimate (UTS), MPa 580
630
Tensile Strength: Yield (Proof), MPa 230
190

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 500
510
Maximum Temperature: Mechanical, °C 940
1090
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 20
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.9
5.4
Embodied Energy, MJ/kg 56
76
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 4.1
3.2
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 0
0.25 to 0.65
Carbon (C), % 0.040 to 0.1
0.050 to 0.1
Chromium (Cr), % 17 to 19
19 to 22
Cobalt (Co), % 0 to 0.2
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 63.8 to 73.6
39.4 to 50.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 9.0 to 13
30 to 34
Niobium (Nb), % 0.32 to 1.0
0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0
0.25 to 0.65