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AWS E312 vs. ASTM A387 Grade 22L Class 1

Both AWS E312 and ASTM A387 grade 22L class 1 are iron alloys. They have 61% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is ASTM A387 grade 22L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
20
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
74
Tensile Strength: Ultimate (UTS), MPa 740
500

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 20
3.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.7
Embodied Energy, MJ/kg 52
23
Embodied Water, L/kg 200
58

Common Calculations

PREN (Pitting Resistance) 31
5.6
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 28 to 32
2.0 to 2.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 52.3 to 63.5
95.2 to 96.8
Manganese (Mn), % 0.5 to 2.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.75
0.9 to 1.1
Nickel (Ni), % 8.0 to 10.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025