AWS ER80S-B3L or ER55S-B3L (K30560) Weld Metal
AWS ER80S-B3L is a weld metal formulated for joining alloy steels. Cited properties are appropriate for the post-weld heat treated (PWHT) condition. ER80S-B3L is the AWS designation for this material. K30560 is the UNS number.
It has a moderately high base cost among the alloy steel welding fillers in the database.
The graph bars on the material properties cards below compare AWS ER80S-B3L to: alloy steel welding fillers (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
190 GPa 27 x 106 psi
Elongation at Break
19 %
Poisson's Ratio
0.29
Shear Modulus
74 GPa 11 x 106 psi
Tensile Strength: Ultimate (UTS)
630 MPa 91 x 103 psi
Tensile Strength: Yield (Proof)
530 MPa 76 x 103 psi
Thermal Properties
Latent Heat of Fusion
260 J/g
Melting Completion (Liquidus)
1460 °C 2660 °F
Melting Onset (Solidus)
1420 °C 2590 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
41 W/m-K 24 BTU/h-ft-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
7.7 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.9 % IACS
Otherwise Unclassified Properties
Base Metal Price
4.1 % relative
Density
7.8 g/cm3 490 lb/ft3
Embodied Carbon
1.8 kg CO2/kg material
Embodied Energy
23 MJ/kg 10 x 103 BTU/lb
Embodied Water
60 L/kg 7.2 gal/lb
Common Calculations
PREN (Pitting Resistance)
6.0
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m3
Resilience: Unit (Modulus of Resilience)
730 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
22 points
Strength to Weight: Bending
21 points
Thermal Diffusivity
11 mm2/s
Thermal Shock Resistance
18 points
Alloy Composition
| Fe | 93.6 to 96 | |
| Cr | 2.3 to 2.7 | |
| Mo | 0.9 to 1.2 | |
| Mn | 0.4 to 0.7 | |
| Si | 0.4 to 0.7 | |
| Cu | 0 to 0.35 | |
| Ni | 0 to 0.2 | |
| C | 0 to 0.050 | |
| P | 0 to 0.025 | |
| S | 0 to 0.025 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
AWS A5.28: Specification for Low-Alloy Steel Electrodes and Rods for Gas Shielded Arc Welding
Welding Metallurgy, 2nd ed., Sindo Kou, 2003