Chemical Compositions of popular Grade
| AWS A5.16 | UNS Number | ASTM | C | O | N | H | Fe | Other |
| B863 | ||||||||
| ERTi-1 | R50100 | Grade-1 | 0.03 | 0.03-0.10 | 0.012 | 0.005 | 0.08 | |
| ERTi-2 | R50120 | Grade-2 | 0.03 | 0.08-0.16 | 0.015 | 0.008 | 0.12 | |
| ERTi-3 | R50150 | Grade-3 | 0.03 | 0.13-0.20 | 0.02 | 0.008 | 0.16 | |
| ERTi-4 | R50130 | Grade-4 | 0.03 | 0.18-0.32 | 0.025 | 0.008 | 0.25 | |
| ERTi-5 | R56400 | Grade-5 | 0.05 | 0.12-0.20 | 0.03 | 0.015 | 0.22 | Al5.5-6.5 |
| V 3.5-5.5 | ||||||||
| ERTi-7 | R52401 | Grade-7 | 0.03 | 0.08-0.16 | 0.015 | 0.008 | 0.12 | Pd 0.12-0.25 |
| ERTi-9 | R56320 | Grade-9 | 0.03 | 0.08-0.16 | 0.022 | 0.008 | 0.25 | |
| ERTi-12 | R53400 | Grade-12 | 0.03 | 0.08-0.16 | 0.015 | 0.008 | 0.15 | Mo0.6-0.9 |
| Ni0.2-0.4 | ||||||||
| ERTi-23 | R56408 | Grade-5 ELI | 0.03 | 0.03-0.11 | 0.012 | 0.005 | 0.2 | Al5.5-6.5 |
| V3.5-5.5 |
Sizes and Available Shapes
| Diameter & Types | ||||
| Diameter Range | Types | |||
| mm | inch | Coil | Spool | Straight |
| 0.1to 0.78 | 0.0039 to 0.031 | Y | Y | N |
| >0.78 to 3.25 | >0.031 to 0.128 | Y | Y | Y |
| > 3.25 to 6.00 | > 0.128 to 0.236 | Y | N | Y |
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