ER330
Class: ER330
AWS: A5.9
Conforms to Certification: AWS A5.9 | ASME SFA A5.9
Weld Process Used for Tig: (GTAW)
AWS Chemical Composition Requirements
C = 0.18 – 0.25
Cr = 15.0 – 17.0
Ni = 34.0 – 37.0
Mo = 0.75 max
Mn = 1.0 – 2.5
Si = 0.30 – 0.65
P = 0.03 max
S = 0.03 max
Cu = 0.75 max
Available Sizes
.030 x 36
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36
3/16 x 36
5/32 x 36
Application
ER330 is used to weld cast and wrought material of similar chemical composition. The weld metal provides excellent heat and scale resistance up to 1800ºF. However, high sulfur environments may adversely affect elevated temperature performance. This being a fully austenitic alloy, low heat input is necessary.
| Deposited Chemical Composition % (Typical) | ||
| C = 0.23 | Mo = 0.10 | P = 0.014 |
| Cr = 15.95 | Mn = 1.95 | S = 0.005 |
| Ni = 35.20 | Si = 0.42 | Cu = 0.15 |
| Mechanical Properties (R.T.) | |
| Yield Strength | 84,000psi |
| Tensile Strength | 56,500psi |
| Elongation | 29% |
Deposited All Weld Metal Properties
Data is typical for ER330 weld metal deposited by Tig using 100% Argon as the shielding gas.
Recommended Welding Parameters |
|||
| GTAW “Tig Process” | |||
| Wire Diameter | Amps DCSP | Volts | Shielding Gas |
| .035 | 60-90 | 12-15 | Argon 100% |
| .045 | 80-110 | 13-16 | Argon 100% |
| 1/16 | 90-130 | 14-16 | Argon 100% |
| 3/32 | 120-175 | 15-20 | Argon 100% |
Note: Parameters for tig welding are dependent upon plate thickness and welding position.
Other shielding Gases may be used for Tig welding. Shielding gases are chosen taking Quality, Cost, and Operability into consideration.