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YAWATA 310-16 (For 25%Cr-20%Ni Stainless Steel & Dissimilar Metals)
Classification : AWS A 5.4 : E310-16, DIN 8556 : E 25 20 R 26
Approvals : -
Applications : Welding of 25%Cr-20%Ni steels, i.e. 310, 310S, ASTM CR20, DIN 1.4841, 1.4848, AISI 309, 310 and 314. Also for dissimilar welds which require post weld heat treatment, if the joint is to be subject to thermal cycling in service then Ni based electrodes should be used in preference to YAWATA 310.
PDFYawata-Pamphlet-Stainless.pdf
YAWATA 310-16 is a rutile type electrode deposits nominally 25%Cr-20%Ni fully austenitic stainless steel weld metal and is normally used for joint welding and hardsurfacing of 25%Cr-20%Ni heat-resistance ferritic Cr steels, provided corrosion resistance in reducing sulphurous combustion gases is not specified. It can be used for welding mild steel to stainless steels though the heat input should be kept low during welding to avoid hot cracking. The weld metal is resistant to oxidation and scaling at temperature up to 1050℃.
| Â |
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Ni
|
Mo
|
Cu
|
|
Req.  Â
|
≤0.04
|
≤1.00
|
0.50-2.50
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≤0.040
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≤0.030
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25.0-28.0
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20.0-22.5
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≤0.75
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≤0.75
|
|
Typ.  Â
|
0.07
|
0.80
|
1.60
|
0.025
|
0.011
|
27.0
|
21.0
|
0.39
|
0.09
|
Typ. = Typical results
N.S. = Not Specified
Â
| Â | Tensile Strength N/mm2 (kgf/mm2) |
Yield Strength N/mm2 (kgf/mm2) |
Elongation % |
Charpy 2V-notch at 0 ºC, J (kgf.m) |
| Req.   | ≥XXX (XX) | ≥XX (XX) | ≥XX | Not Specified |
| Typ.   | 550 (XX) | 400 (XX) | 30 | 70 (XX) |
| Diameter /Length (mm) |
2.6/300 | 3.2/350 | 4.0/350 | 5.0/350 |
| Welding position | Current (A) | |||
| F | 40-70 | 70-100 | 110-140 | 140-170 |
| V, OH | 40-70 | 70-90 | 90-130 | - |
2. Sufficient crater treatment is required since deposited metal is a completely austenitic structure and crack resistance is slightly low.
3. Excessively wide weaving may cause welding defects. Keep weaving width to less than 2.5 times electrode diameter.
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Stainless Steel
Stainless Steel
