IDENTIFICATION: GRIBINOX 175
CLASSIFICATION: AWS/SFA 5.4 E 630-15
CHARACTERISTICS:
A basic coated special electrode developed for welding high strength martensitic precipitation hardening steels. The deposited weld metal is of X-ray quality.
TYPICAL APPLICATION:
For welding high strength martens tic stainless steels, precipitation hardened by additions of copper.
Application include:-
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | Mo |
| 0.05 | 0.35-0.70 | 0.7 | 0.03 | 0.3 |
| max | max | max | max | |
| P | Cr | Ni | Cu | Nb |
| 0.035 | 16 | 4.5 | 3.25 | 0.15- |
| max | 16.75 | 5.5 | 0.3 |
MECHANICAL PROPERTIES (TYPICAL):
After PWHT, 1035±10°C for 1 hr, and then
Precipitate hardening at 610-630° C for 4 hrs
Followed by air cooling to ambient temperature
| UTS | ELN (%) |
| MPa | (L=5D) |
| 950 | 12 |
MATERIALS TO BE WELDED:
Precipitation hardening steel such as:
MICROSTRUCTURE:
In the PWHT condition the microstructure consists of precipitation hardened tempered martensite with some retained austenite.
REDRYING: 300oC /2 hrs. max 5 cycles, 10 hr. total.
RECOMMENDED CURRENT AND PACKING DATA:
| SIZE | LENGTH | AMPS | PACKING/BOX | WEIGHT/1000 Pcs |
| (mm) | (mm) | DC (+) | (KG) | (KG) |
| 2.5 | 350 | 70-110 | 2X5=10 | 20.5 |
| 3.15 | 350 | 80-140 | 2X5=10 | 32 |
| 4 | 350 | 100-180 | 2X5=10 | 51 |