Products
YAWATA N-2 (For 2.25%Cr-1%Mo Heat Resisting Steel)
Classification : AWS A 5.5 : E9016-B3
Approvals : TIS
Application : Welding of piping steel (STP A24, A335, P22), boiler and heat exchanger (STB A24, A199-T22, A213-T22), rolled steels (SCM V4, A387 Grade 22), cast steels (A217-WC9) and forged steels (A182-F22, A336-F22).
YAWATA N-2 is an extra low hydrogen type 2.25% Cr-1% Mo steel electrodes and suitable for welding 2.25% Cr-1% Mo steels to be used at high temperatures up to 600℃. Deposited metal shows extremely high creep-rupture strength at 500～600℃.
AWS A 5.5 : E9016-B3
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
|
|
Req.
|
0.05-0.12
|
≤0.60
|
≤0.90
|
≤0.030
|
≤0.030
|
2.0-2.5
|
0.90-1.20
|
|
Typ.
|
0.08
|
0.50
|
0.66
|
0.007
|
0.009
|
2.3
|
1.10
|
Typ. = Typical results
N.S. = Not Specified
| Tensile Strength N/mm2 (kgf/mm2) |
Yield Strength N/mm2 (kgf/mm2) |
Elongation % |
Heat Treatment | |
| Req. | ≥XX | ≥XX | ≥XX | xx |
| Typ. | 670 (68) | 570 (58) | 24 | 690oC x 1h |
| Diameter /Length (mm) |
2.6/300 | 3.2/350 | 4.0/400 | 5.0/450 |
| Welding Position | Current (A) | |||
| F | 60-90 | 90-140 | 140-190 | 190-240 |
| V, OH | 50-80 | 80-120 | 110-150 | 140-180 |
1. Use dry electrodes only.
2. Damp electrodes should be re-dried at 300～400℃ for 60 minutes before use.
3. Preheating at 150～300℃ and postheating at 620～720℃ are required.
2. Damp electrodes should be re-dried at 300～400℃ for 60 minutes before use.
3. Preheating at 150～300℃ and postheating at 620～720℃ are required.
Related industries
Energy Industry
Energy Industry
