High-strength steels
FERVEO HTS 830
covered electrode · stick electrodeCatalogue only
AWS class
E 12018 - G H4
EN ISO class
E 69 5 Z Mn2NiCrMo B 4 2 H5
Tensile strength (Rm)
830–950 MPa
Classification
| AWS class | E 12018 - G H4 |
|---|---|
| EN ISO class | E 69 5 Z Mn2NiCrMo B 4 2 H5 |
Purpose
- Mn-Ni-Cr-Mo basic electrode at the top step of the FERVEO HTS ladder (AWS E 12018-G H4, EN ISO E 69 5 Z Mn2NiCrMo B 4 2 H5).
Why it works
Higher chromium content than FERVEO HTS 690B5 on the same Mn-Ni-Cr-Mo system takes the FERVEO HTS mechanical-strength ladder to its top, while keeping the B5 sub-family's low-temperature toughness certification.
Fields of application
- Fine-grained steel, cementation steel, quenched-and-tempered steel and very-high-strength cast steel for naval/structural use, and API 5L pipe up to X80.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.06 |
| Cr | 0.9 |
| Mn | 1.6 |
| Mo | 0.5 |
| Ni | 2.5 |
| Si | 0.4 |
Mechanical properties
| Tensile strength (Rm) | 830–950 MPa |
|---|---|
| Yield strength (Rp0.2) | 740 MPa |
| Elongation (A5) | 17 % |
| Impact energy (KV) | 28 J (−50 °C) |
Process
| Polarity | DC+ |
|---|---|
| Heat treatment | 560-600° C / 1h / |
Cross-reference
| Replaces TENACITO 100 (Oerlikon) | Direct replacement |
Equivalence refers to the classification (AWS / EN ISO), not to product identity. In applications with a qualified procedure (WPS), validate the substitution before use.
Base metals
HY 100S690QLS690QUN-AXTRA 70API 5L: X60X65X70X80
Advantages
- The highest mechanical-strength step in the entire FERVEO HTS ladder.
- Applicable to the ladder's widest range of very-high-strength steels (cementation, quenched-and-tempered, cast).
Limitations
- Declared Charpy toughness slightly lower than the earlier steps of the B5 sub-family — check against the qualified WPS for very-low-temperature service.