High-strength steels
FERVEO HTS 690 TIG
TIG rodCatalogue only
AWS class
ER 100S-G
EN ISO class
G 69 4 M21 Mn3Ni1CrMo
Tensile strength (Rm)
770–940 MPa
Classification
| AWS class | ER 100S-G |
|---|---|
| EN ISO class | G 69 4 M21 Mn3Ni1CrMo |
| Other standards | ISO 20172: Gruppe 3.1 |
Purpose
- Mn-Ni-Cr-Mo TIG rod, one strength-and-alloy step above FERVEO HTS 620 MIG (AWS ER 100S-G, EN ISO G 69 4 M21 Mn3Ni1CrMo).
Why it works
Adds chromium and vanadium to the Mn-Ni-Mo base of FERVEO HTS 620 TIG, stepping mechanical strength up one notch — the same ladder logic as the electrode range, here in solid-rod form for TIG.
Fields of application
- Higher-strength, high-elastic-limit Cr-Ni-Mo steel (Weldox 700, BSC RQT 701 and N-A-XTRA 55-70 equivalents).
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.1 |
| V | 0.1 |
| Cr | 0.35 |
| Mn | 1.6 |
| Mo | 0.3 |
| Ni | 1.4 |
| Si | 0.6 |
Mechanical properties
| Tensile strength (Rm) | 770–940 MPa |
|---|---|
| Yield strength (Rp0.2) | 690 MPa |
| Elongation (A5) | 17 % |
Process
Sizes and part numbers
| Ø | Request |
|---|---|
| 1 mm | |
| 1.6 mm | |
| 2.4 mm | |
| 3.2 mm |
Cross-reference
| Replaces CARBOROD NiMo1 (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
1.89861.89871.8988
Advantages
- One mechanical-strength step above FERVEO HTS 620 TIG, in the same solid-rod TIG format.
Limitations
- For even higher strength in solid-rod form, see FERVEO HTS 890 MIG and FERVEO HTS 960 MIG.