Flux cored wire for piping and constructions with PWHT requirements.
AWS A5.29 E71T1-GM-H4
AWS A5.36 E71T1-M21P6-K6-H4
AWS A5.36 E71T1-M21A6-K6-H4
EN ISO 17632-A: T 42 4 ZMnNi P M21 2 H5
EN ISO 9606-1: FM1
SF-3AMSR is a seamless rutile flux cored wire for welding using Argon/CO2 mixed shielding gas. This ensures a stable welding arc with less spatter, excellent visual bead shape and smooth transition to the base material. SF-3AM has excellent charpy impact values down to -46°C. Due to seamless design the wire has an extremely low diffusible hydrogen content (typical 3 ml/100g), which greatly eliminates the risk of hydrogen cracks. SF-3AMSR has low welding fume and excellent operations in all welding positions. Like all other Nittetsu seamless wires the wire has a clean copper coated surface. This combined with exact diameter and roundness ensures a stable and even wire feeding. Stick out should be between 15-25 mm depending upon welding parameters. Voltage should be about 10% of the ampere, which is about 1-3 Volts lower than what conventional folded flux cored wires requires.
Diffusible hydrogen content:
≤5 ml/100g (3,0 ml/100g typical).
1,2mm x 5,0kg spool D200 -on request
1,2mm x 12,5kg spool D300 -ArticleNo.:5212717
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DNV-GL(PWHT), LR, CE
SF-3AMSR, English, 06.07.2023.