SF-65A is a seamless rutile all position flux-cored wire developed for welding high tensile steel such as s550 and similar high tensile strength steel. The wire is to be used with a M21 Argon/CO2 mixed shielding gas, which ensuring a user friendly and stable arc with minimum spatter and good transition to the parent material. Due to its seamless characteristic, the wire has an extremely low content of hydrogen (typical <3ml/100g weld metal), something which ensures low risk of cold cracks.
The wire is copper coated and has a clean surface with exact diameter and perfect roundness ensures a stable and even wire feeding as well as easy handling and storage procedures. The stick out should be between 15-20mm depending upon welding parameters. Volts should be app’x 10% of the Amperage, this is about 1-3 volts lower than a conventional folded flux cored wire.
SF-65A
Flux cored wire for welding high tensile steels.
AWS A5.36 E91T1 M21A4 K2 H4
EN ISO 18276-A: T 55 4 ZMn1.5Ni P M21 2 H5
EN ISO 9606-1: FM2
General description
Typical chemical composition of all-weld-metal:
| C | Si | Mn | P | S | Cu | Ni | Cr | Mo | V |
|---|---|---|---|---|---|---|---|---|---|
| 0,02-0,09 | 0,30-0,70 | 1,00-1,50 | Max. 0,030 | Max. 0,030 | Max. 0,40 | 1,00-2,00 | Max. 0,15 | Max. 0,35 | Max. 0,05 |
Typical mechanical properties of all-weld-metal:
| Yield | Tensile | Elongation | Charpy |
|---|---|---|---|
| ≥550 Mpa | 640 - 840 Mpa | ≥18 % | ≥47V(J)/-40°C |
Diffusible hydrogen content:
≤5 ml/100g (2,8 ml/100g typical).
Packaging information:
1,2mm x 12,5kg spool D300
1,2mm x 5,0kg spool D200
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Approvals:
CE
Reference/date:
SF-65A, English, 17.03.2020.
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