316H
Application
Developed for welding austenitic stainless steels such as 316/316H in demanding high-temperature environments (500-800°C) with prolonged exposure to creep, these consumables are versatile for welding 321/321H and 347/347H grades in high-temperature structural applications. Particularly crucial in robust weldments with significant constraints, the incorporation of more ductile weld metal minimizes the risk of premature service failure attributed to intergranular HAZ cracking when compared to using 347H. Widely employed across the petrochemical industry, these consumables find essential application in steam piping, superheater headers, furnace parts, and specific components within gas and steam engine turbines. Their usage extends to fossil and nuclear-fueled power stations. Similar to 308H, these consumables require no preheating, maintain a maximum interpass temperature of 250°C, and do not necessitate post-weld heat treatment.
Alloy Type
High carbon 316 austenitic stainless steels.
Microstructure
Austenite with delta ferrite typically controlled in
the range 2-8FN.
Materials
For 316/316H materials used at elevated temperatures.
- EN W.Nr.: 1.4408 (X5CrNiMo 17-12-2)
- ASTM: 316, 316H, CF10M
- UNS: S31609
Products of the line 316H
| Product name | Process | AWS specifications | EN ISO specifications | |
| DAIKOWT 316H | GTAW |
AWS A5.9
ER316H |
EN ISO 14343-A
W 19 12 3 H |
|
| G-TECH 316HB | SMAW |
AWS A5.4
E316H-15 |
EN ISO 3581-A
E 19 12 2 B |
|
| G-TECH 316H | SMAW |
AWS A5.4
E316H-16 |
EN ISO 3581-A
E 19 12 2 R |
|
| DAIKOWM 316H | GMAW |
AWS A5.9
ER316H |
EN ISO 14343-A
G 19 12 3 H |
|
| DAIKOWS 316H | SAW |
AWS A5.9
ER316H |
EN ISO 14343-A
S 19 12 3 H |
