|  | | OK Tigrod 16.31 GTAW
 
 An Nb-stabilized, stainless, 19% Cr, 12% Ni, 3% Mo (''ER318Si'') rod for the GTAW of Ti and Nb-stabilized stainless steel of the 18Cr12Ni3Mo type, such as AISI 316Ti. OK Tigrod 16.31 is normally welded with pure Ar as the shielding gas.
 Welding current, A
 DC(-)
 
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 | Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal |  | | EN 12072 |  | W 19 12 3 NbSi |  | Werkstoffnummer |  | appr. 1.4576 | 
 | | DB | 43.039.15 |  |
 | UDT | DIN 8556 |  |
 | Ü | 43.039/1 |  |
 | VdTÜV |  |  |
 | | C | <0,08 |  | Si | 0,8 |  | Mn | 1,8 |  | Cr | 19,0 |  | Ni | 12,5 |  | Mo | 2,8 |  | Nb | <1,0 |  | Cu | <0,3 |  | Wire composition | 
 | Yield stress, MPa 460
 Tensile strength, MPa
 615
 Elongation, %
 35
 Elongation, %
 35
 
 | Charpy V |  | Test temps, °C | Impact values, J |  | +20 | 40 | 
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 | Diameter, mm | 1,0 | 1,2 | 1,6 | 2,0 | 2,4 | 3,2 | 4,0 |  | Length, mm | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 |  | Weight of rods/box, kg | 5,0 | 5,0 | 5,0 | 5,0 | 5,0 | 5,0 | 5,0 | 
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